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Where gods fear to Tread [Training - S rank Fuuinjutsu] Sun Dec 09, 2012 8:51 am
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Trilby sat up as the elderly doctor entered the room. ”Mr.... Trilby. We've got the results back on your eye. Not good I'm afraid. It won't see again. However, the good news is we can leave it in so you don't have to worry about getting a false eye arranged.” Trilby nodded, waiting for a pause in the doctor's speech. ”I don't suppose you could remove the eye, could you? I'd rather have a false one.” The doctor stared at him, confused. Trilby supposed it wasn't often that someone requested an eye removal that wasn't needed. ”But, there are no advantages to having a false eye over your current one.” he explained, sounding bemused as to why someone would want their eye removed. ”I'm a fuuinjutsu master. If this eye wont see again I can develop something for a prosthetic eye. Even if I can't get something to work to give me vision I can place other seals on a false eye, making it a more useful tool for a shinobi. Now can you do it?” Trilby couldn't help but feel frustrated with the doctor. He knew he was only trying to help, but still, Trilby didn't feel like explaining the intricate details of the situation to him. ”I... yes. We can do it this afternoon.”
Trilby opened his eye, staring around the sterile room. The drugs were making his head fuzzy, and he was struggling to focus. His name seemed like a distance dream, let alone why he was here in the first place. Sitting up with some difficulty, he saw he was back in an empty wards. A large nurse pager button was sitting in his lap. Trilby reached out, grabbing it and giving it a firm press before leaving back and shutting his eyes. He had so much painkillers swimming in his veins that his previous display of physical prowess overwhelmed him. After a few minutes, an elderly woman walked in, flicking a switch on the wall to shut off the alarm. ”I see you're awake. You'll be glad to know it was successful. They're arranging some prosthetic eyes for you, in the meanwhile you'll have to stay here to recover for a few days.” Trilby nodded wearily at the nurse, rolling over and slipping off into a tramadol fuelled sleep, unable to resist the embrace of sleep any longer.
Five days later, and Trilby had been discharged from Sunagakure general. He had been given a thin black eye patch, and a box of several different prosthetic eyes. Trilby put the attaché case of “Ocular Prosthesis” away for now, heading towards the Grand Library. ”Hello Aiko. You couldn't point me towar-” he was cut off mid section by a deep gasp of surprise. ”Tril, what happened to your face sweetheart?!” she said, a look of concern and sadness clearly visible on her face. He couldn't help but smile at her sweetness, a cute girl worrying about him. Perhaps when he wasn't so busy he could ask her out. ”Don't worry, I think I can fix it. Which is why I'm here, actually. I need to be pointed towards anything about the biological functioning of the human eye.” ”One moment....ok, this might do. A doctor Ayame Matsuda wrote a thesis about the biomechanical functioning of the human eye. It's in the medical section, I'll go get it for you.” Aiko gave him a quick smile before darting off down long winding halls. Merely seconds later she came back, carrying a small paperback book. It was in perfect condition, like no one had read it before. Odd, the medical section was normally teeming with students mishandling everything they could get their hands on. Regardless, he wasn't here to worry about the state of the book. ”Thanks dear” Trilby said with a smile, grabbing the book and dashing off to an empty desk.
Trilby had no interest in medical ninjutsu, and to be completely honest he still didn't, but if he had any hopes of coming up with a solution to his current problem, he'd have to get an in-depth comprehension of how it worked, otherwise he was simply wasting his time. The book itself was reasonably complex, as it worked on the assumption that the reader had an extensive medical knowledge, so Trilby was forced to gather a more than substantial pile of reference material to fully comprehend was he was reading. Nevertheless he made his way through the tome, and in time learned of how the eye actually worked. The way he reasoned it, the Iris and cornea were a glorified lens. The cornea refracted light was a sort of focusing glass, helping the eye focus on specific points and distances. The Iris, on the other hand, widened and narrowed with the light pollution, adjusting the size of a pupil much like a camera lens shutter would. The light passes through the pinhole, or pupil, where it is reflected through a lens and hits photo-sensitive cells, which relays what it sees along the optic nerve.
Clearly this would require multi dimensioned seal work, he couldn't simply perform this as one large seal, it had too many moving parts to fit in the surface he had to make it function within as one solid unit. It seemed he'd need a few unique seals he'd have to compile together. First, he'd need something to capture the light that hit it. He'd also need a regulator seal to act as an iris, which could adjust the capture ratio of the initial seal, ensuring it could adjust to the light density like a normal eye. He'd then need a converter seal to attach to the initial seal, taking the captured information and converting it to electrical impulses. He'd then finally need a seal that could output the information into the optic nerve in the same way the eye would normally, so the brain can translate it. Beyond that, he'd need a light suiton effect, keeping the eye moisturised and avoiding irritation so the user can leave it in permanently. So, a capture seal with an adjustment seal attached, connected to a converter seal, and finally an output seal. Five seals, it wouldn't be too complicated to master any of the specific pieces, but getting them all to function together harmoniously in a single false eye would be the trick.
First, he might as well deal with the easiest seal. The lubrication of the eye piece wouldn't be a difficult thing to achieve. Even though he couldn't perform suiton jutsu, he didn't need to. A water based seal of this difficulty would make E rank techniques look difficult, it could even run off the basic energy a human eye consumes lubricating itself, meaning it'd consume no chakra in it's functionality. Still, he hadn't performed a fuuinjutsu of this nature before, he'd need to consult a book on basic elemental techniques to find something to adapt. “Elemental Seal basics, chapter Two; Suiton.” Most of the tome wasn't anything of benefit to him, until he found a particular seal. Water creation. Turned chakra into light levels of water. The amount was beyond basic, a few drops. But if he could adjust the nature of the input of the seal and link the rate of creation to that of his organic eye, it could dynamically lubricate based off conditions set by the natural eye. It wasn't hard for someone with Trilby's level of experience to adjust the bond of the seal to change it's consumption nature. Normally chakra was the only thing that could fuel something like this, but with it's low production and consumption rates, organic materials could be converted into something it could be fuelled by, using a special type of converter, rarely used in Fuuinjutsu; A bioelectrical conduit. Weaving a bioelectrical seal into the lubrication seal wasn't difficult, but it still lacked a component. He needed the seal to be regulated by a bond to the organic eye. He'd need an information analysis seal that regulated the lubrication seal to be added. Another seal he didn't use in his techniques. ”Information communication in Fuuinjutsu” was a book that wasn't originally intended to be used for this purpose, but it had seals that gathered communication and relayed it to other seals, exactly what he needed. Copying the basic frame of this seal, he added it to the Lubrication seal, putting it between the bioelectrical converter, causing it to act as a regulator valve for the energy input, so the seal would create water in proportion to the amount of energy it received. The transmitter seal it got it's information from would need to be placed on an organic eye's eyelid. Without this, it would default to a standard rate, which wouldn't cause issues beyond occasional pain during dry weather. The lubrication seal none the less was complete.
The light capture seal was the next piece he needed to make, and it was the most complicated, yet it dealt with what he knew the most, so it would require the least research for Trilby. He needed a seal that covered a specific surface area, which could distinguish between what it was capturing. It'd need to regulate specifically for light, and it'd have to distinguish between where in the seal it landed. Ultimately it wasn't that difficult, the seal would cover the edge of the fake eye, invisible unless the eye was removed from the socket, as whatever is within the seal would be captured. Lacking the ability to do a small pinhole/lens effect the way an eye would, he had to operate it differently, hence this method. Within this seal, he created a socket, specifically for a regulator valve of sorts, something to adjust what sections of light the seal consumed and what it rejected.
The regulator seal, that adjusted the size of the the capture area, was his next major issue. He could capture the light, sure, but he needed something to manage where, what and how. His analysis of normal fuuinjutsu proved unhelpful. It seemed no fuuinjutsu master could overcome this piece of the puzzle. It made sense, he had found it rather difficult to figure out how no one had gotten this far before. This was why, the “Icarus Key” to quote his mother. It seemed it was basically impossible with normal methods. Still, he wasn't a normal Fuuinjutsu user. Dark priest arts functioned completely differently. If he could apply the logic to his own circuitry, it'd be theoretically possible. Drawing a small scroll from his pocket, he sent a spark of chakra into it. A small book appeared before him, which he quickly popped open and flipped through the book. His mother was working on a seal for medical ninjutsu, something that'd be useless for him, but it did have something specific, the seal needed a regulator to adjust it's scope. It could be applied to the light capture seal and it would adjust the range where the light was captured. It would leave his Dark Priest arts logo where an iris would normally be. This seal would shrink and grow like an iris to regulate the intake. Perfect for this seal.
Converting to electrical signals wasn't very difficult either. He'd need to connect it to the capture seal with a basic seal, and then convert it to electrical signals with a basic Raiton seal, using the same principle as applied within the Lubrication seal. This seal would take in the light it captured, and convert it into electrical signals based on where it was consumed and what special characteristics it had, like colour or wavelength. “Elemental Seal basics, chapter Three; Raiton.” had the Raiton seal concept he needed, the sister book of his previous tome. Outputs to optic nerve were all this needed to function perfectly. It would draw the signal from the first seal and connect it to the optic nerve through a bio-converter, ensuring smooth connectivity to the nerve.
Trilby had all the initial components, now all he needed to do was test them and compile them, then... experiment on himself. Drawing the attaché case from his pocket, he stared at the river of false eyes. Six of them had blank faces, while two had eyes. Drawing the blank faced eye from his case, he formed the rabbit seal, pressing his thumb into the surface of the eye, causing a small seal to burn onto the rear of it's face. Trilby placed his finger on the surface of the eye, but it was dry. It needed fuel. The seal was set up for bioelectrical energy, but it would still function on chakra. Feeding the seal a small burst of energy, the surface quickly became damp to the touch. Picking up the eye, Trilby folded back his eye patch before pulling down his eyeball, pushing it into place. A false eye was painful and raw without lubrication, but this eye felt perfectly fine and natural. Pressing his thumb into the base of his eye, it popped out, leaving him with an empty socket.
Drawing one of the blank seals, Trilby formed the dog seal, a dark ring of kanji forming around the far sides of the eye. Following it through with a God seal, a small dark priest arts seal appeared. It was perfectly still. Reaching over to grab the head of the adjustable lamp, he pulled it over above the eye. As it passed over, the seal in the centre contracted tightly. Turning it off, the seal expanded outwards again. It was regulating to light properly, and if it was doing that, it had to be consuming light. Rabbit hand sign, Lubrication seal. The eye became damp to the touch. One last touch was needed. Trilby formed the dragon and sin seals, putting his hand above the seal. The rear of the eye became drowned in a sea of kanji. The converter was in place, there was only one thing left to do. Boar seal, Trilby placed his hands over his right eye, forming a seal on the inside of his eyelid. It burned and stung for a second before smoothing over, and as it formed a small glow flared from the false eye, a confirmation that the signal was received.
Scooping up the miracle of seal work that sat in his hand, Trilby carefully lowered it into his eye socket. At this point it was just a fancy fake eye. It needed one last thing, the bonding process. Once it bonded to his optic nerve, it would be as attached as a real eye, and just as painful to remove, hence the lengths he went to to ensure it never had to be taken out. He shut his eyelid, holding two fingers over the surface of it and breathing in deep. This was it. If this didn't work, nothing he did ever would. “SEAL!” he shouted out, a burst of chakra flying from his fingertips, through his eye and up his optic nerve. It felt like he'd just been stabbed in the skull, an immense burning sensation swelled in his fake eye as he hunched over in pain, the sensation overwhelming. The previously black section of his vision flared white as the nerve was activated, though his shut eyes revealed nothing. After about a minute, the searing pain faded, and slowly, he opened his eyes. The flare of sunlight felt uncomfortable for a brain that hadn't seen it from this eye in forever, as the world came into focus. He could see everything.
Trilby shone a light into his false eye, and the vision changed exactly as it did in his real one, a mirror revealing the seal contracting appropriately, to the same ratio as his organic eye. He had done it. He could see the world, the first human being to ever successfully use a fake eye. Where so many masters of the art had fallen, he rose above in one afternoon. Motivation was a mother of an inventive force. Still, he wasn't done yet. An idea occurred to him, he could change what he could see. His seal could be changed. Sure, any peon would wear this masterpiece of an eye, but only he could use it properly. He was the only one who could manipulate the visual states, he could change what wavelength of light he could see. He could see heat, see incredible distances, or simply see at night. Though, due to the complexity of the seal, such an act would require not only S rank skill and a working knowledge of the Dark Priest arts, it would also have a hefty cool down requirement, lest he damage the sensitive workings of the eye. Naturally, beyond that he would have to worry about interference. He'd have to shut his natural eye during this mode, or he would only cause interference between the two types of vision, causing him to be able to see nothing but a large multi signalled blur. Still, he had done it, not only gaining back his vision, but the potential of seeing in ways humans could never imagine.
Trilby opened his eye, staring around the sterile room. The drugs were making his head fuzzy, and he was struggling to focus. His name seemed like a distance dream, let alone why he was here in the first place. Sitting up with some difficulty, he saw he was back in an empty wards. A large nurse pager button was sitting in his lap. Trilby reached out, grabbing it and giving it a firm press before leaving back and shutting his eyes. He had so much painkillers swimming in his veins that his previous display of physical prowess overwhelmed him. After a few minutes, an elderly woman walked in, flicking a switch on the wall to shut off the alarm. ”I see you're awake. You'll be glad to know it was successful. They're arranging some prosthetic eyes for you, in the meanwhile you'll have to stay here to recover for a few days.” Trilby nodded wearily at the nurse, rolling over and slipping off into a tramadol fuelled sleep, unable to resist the embrace of sleep any longer.
Five days later, and Trilby had been discharged from Sunagakure general. He had been given a thin black eye patch, and a box of several different prosthetic eyes. Trilby put the attaché case of “Ocular Prosthesis” away for now, heading towards the Grand Library. ”Hello Aiko. You couldn't point me towar-” he was cut off mid section by a deep gasp of surprise. ”Tril, what happened to your face sweetheart?!” she said, a look of concern and sadness clearly visible on her face. He couldn't help but smile at her sweetness, a cute girl worrying about him. Perhaps when he wasn't so busy he could ask her out. ”Don't worry, I think I can fix it. Which is why I'm here, actually. I need to be pointed towards anything about the biological functioning of the human eye.” ”One moment....ok, this might do. A doctor Ayame Matsuda wrote a thesis about the biomechanical functioning of the human eye. It's in the medical section, I'll go get it for you.” Aiko gave him a quick smile before darting off down long winding halls. Merely seconds later she came back, carrying a small paperback book. It was in perfect condition, like no one had read it before. Odd, the medical section was normally teeming with students mishandling everything they could get their hands on. Regardless, he wasn't here to worry about the state of the book. ”Thanks dear” Trilby said with a smile, grabbing the book and dashing off to an empty desk.
Trilby had no interest in medical ninjutsu, and to be completely honest he still didn't, but if he had any hopes of coming up with a solution to his current problem, he'd have to get an in-depth comprehension of how it worked, otherwise he was simply wasting his time. The book itself was reasonably complex, as it worked on the assumption that the reader had an extensive medical knowledge, so Trilby was forced to gather a more than substantial pile of reference material to fully comprehend was he was reading. Nevertheless he made his way through the tome, and in time learned of how the eye actually worked. The way he reasoned it, the Iris and cornea were a glorified lens. The cornea refracted light was a sort of focusing glass, helping the eye focus on specific points and distances. The Iris, on the other hand, widened and narrowed with the light pollution, adjusting the size of a pupil much like a camera lens shutter would. The light passes through the pinhole, or pupil, where it is reflected through a lens and hits photo-sensitive cells, which relays what it sees along the optic nerve.
Clearly this would require multi dimensioned seal work, he couldn't simply perform this as one large seal, it had too many moving parts to fit in the surface he had to make it function within as one solid unit. It seemed he'd need a few unique seals he'd have to compile together. First, he'd need something to capture the light that hit it. He'd also need a regulator seal to act as an iris, which could adjust the capture ratio of the initial seal, ensuring it could adjust to the light density like a normal eye. He'd then need a converter seal to attach to the initial seal, taking the captured information and converting it to electrical impulses. He'd then finally need a seal that could output the information into the optic nerve in the same way the eye would normally, so the brain can translate it. Beyond that, he'd need a light suiton effect, keeping the eye moisturised and avoiding irritation so the user can leave it in permanently. So, a capture seal with an adjustment seal attached, connected to a converter seal, and finally an output seal. Five seals, it wouldn't be too complicated to master any of the specific pieces, but getting them all to function together harmoniously in a single false eye would be the trick.
First, he might as well deal with the easiest seal. The lubrication of the eye piece wouldn't be a difficult thing to achieve. Even though he couldn't perform suiton jutsu, he didn't need to. A water based seal of this difficulty would make E rank techniques look difficult, it could even run off the basic energy a human eye consumes lubricating itself, meaning it'd consume no chakra in it's functionality. Still, he hadn't performed a fuuinjutsu of this nature before, he'd need to consult a book on basic elemental techniques to find something to adapt. “Elemental Seal basics, chapter Two; Suiton.” Most of the tome wasn't anything of benefit to him, until he found a particular seal. Water creation. Turned chakra into light levels of water. The amount was beyond basic, a few drops. But if he could adjust the nature of the input of the seal and link the rate of creation to that of his organic eye, it could dynamically lubricate based off conditions set by the natural eye. It wasn't hard for someone with Trilby's level of experience to adjust the bond of the seal to change it's consumption nature. Normally chakra was the only thing that could fuel something like this, but with it's low production and consumption rates, organic materials could be converted into something it could be fuelled by, using a special type of converter, rarely used in Fuuinjutsu; A bioelectrical conduit. Weaving a bioelectrical seal into the lubrication seal wasn't difficult, but it still lacked a component. He needed the seal to be regulated by a bond to the organic eye. He'd need an information analysis seal that regulated the lubrication seal to be added. Another seal he didn't use in his techniques. ”Information communication in Fuuinjutsu” was a book that wasn't originally intended to be used for this purpose, but it had seals that gathered communication and relayed it to other seals, exactly what he needed. Copying the basic frame of this seal, he added it to the Lubrication seal, putting it between the bioelectrical converter, causing it to act as a regulator valve for the energy input, so the seal would create water in proportion to the amount of energy it received. The transmitter seal it got it's information from would need to be placed on an organic eye's eyelid. Without this, it would default to a standard rate, which wouldn't cause issues beyond occasional pain during dry weather. The lubrication seal none the less was complete.
The light capture seal was the next piece he needed to make, and it was the most complicated, yet it dealt with what he knew the most, so it would require the least research for Trilby. He needed a seal that covered a specific surface area, which could distinguish between what it was capturing. It'd need to regulate specifically for light, and it'd have to distinguish between where in the seal it landed. Ultimately it wasn't that difficult, the seal would cover the edge of the fake eye, invisible unless the eye was removed from the socket, as whatever is within the seal would be captured. Lacking the ability to do a small pinhole/lens effect the way an eye would, he had to operate it differently, hence this method. Within this seal, he created a socket, specifically for a regulator valve of sorts, something to adjust what sections of light the seal consumed and what it rejected.
The regulator seal, that adjusted the size of the the capture area, was his next major issue. He could capture the light, sure, but he needed something to manage where, what and how. His analysis of normal fuuinjutsu proved unhelpful. It seemed no fuuinjutsu master could overcome this piece of the puzzle. It made sense, he had found it rather difficult to figure out how no one had gotten this far before. This was why, the “Icarus Key” to quote his mother. It seemed it was basically impossible with normal methods. Still, he wasn't a normal Fuuinjutsu user. Dark priest arts functioned completely differently. If he could apply the logic to his own circuitry, it'd be theoretically possible. Drawing a small scroll from his pocket, he sent a spark of chakra into it. A small book appeared before him, which he quickly popped open and flipped through the book. His mother was working on a seal for medical ninjutsu, something that'd be useless for him, but it did have something specific, the seal needed a regulator to adjust it's scope. It could be applied to the light capture seal and it would adjust the range where the light was captured. It would leave his Dark Priest arts logo where an iris would normally be. This seal would shrink and grow like an iris to regulate the intake. Perfect for this seal.
Converting to electrical signals wasn't very difficult either. He'd need to connect it to the capture seal with a basic seal, and then convert it to electrical signals with a basic Raiton seal, using the same principle as applied within the Lubrication seal. This seal would take in the light it captured, and convert it into electrical signals based on where it was consumed and what special characteristics it had, like colour or wavelength. “Elemental Seal basics, chapter Three; Raiton.” had the Raiton seal concept he needed, the sister book of his previous tome. Outputs to optic nerve were all this needed to function perfectly. It would draw the signal from the first seal and connect it to the optic nerve through a bio-converter, ensuring smooth connectivity to the nerve.
Trilby had all the initial components, now all he needed to do was test them and compile them, then... experiment on himself. Drawing the attaché case from his pocket, he stared at the river of false eyes. Six of them had blank faces, while two had eyes. Drawing the blank faced eye from his case, he formed the rabbit seal, pressing his thumb into the surface of the eye, causing a small seal to burn onto the rear of it's face. Trilby placed his finger on the surface of the eye, but it was dry. It needed fuel. The seal was set up for bioelectrical energy, but it would still function on chakra. Feeding the seal a small burst of energy, the surface quickly became damp to the touch. Picking up the eye, Trilby folded back his eye patch before pulling down his eyeball, pushing it into place. A false eye was painful and raw without lubrication, but this eye felt perfectly fine and natural. Pressing his thumb into the base of his eye, it popped out, leaving him with an empty socket.
Drawing one of the blank seals, Trilby formed the dog seal, a dark ring of kanji forming around the far sides of the eye. Following it through with a God seal, a small dark priest arts seal appeared. It was perfectly still. Reaching over to grab the head of the adjustable lamp, he pulled it over above the eye. As it passed over, the seal in the centre contracted tightly. Turning it off, the seal expanded outwards again. It was regulating to light properly, and if it was doing that, it had to be consuming light. Rabbit hand sign, Lubrication seal. The eye became damp to the touch. One last touch was needed. Trilby formed the dragon and sin seals, putting his hand above the seal. The rear of the eye became drowned in a sea of kanji. The converter was in place, there was only one thing left to do. Boar seal, Trilby placed his hands over his right eye, forming a seal on the inside of his eyelid. It burned and stung for a second before smoothing over, and as it formed a small glow flared from the false eye, a confirmation that the signal was received.
Scooping up the miracle of seal work that sat in his hand, Trilby carefully lowered it into his eye socket. At this point it was just a fancy fake eye. It needed one last thing, the bonding process. Once it bonded to his optic nerve, it would be as attached as a real eye, and just as painful to remove, hence the lengths he went to to ensure it never had to be taken out. He shut his eyelid, holding two fingers over the surface of it and breathing in deep. This was it. If this didn't work, nothing he did ever would. “SEAL!” he shouted out, a burst of chakra flying from his fingertips, through his eye and up his optic nerve. It felt like he'd just been stabbed in the skull, an immense burning sensation swelled in his fake eye as he hunched over in pain, the sensation overwhelming. The previously black section of his vision flared white as the nerve was activated, though his shut eyes revealed nothing. After about a minute, the searing pain faded, and slowly, he opened his eyes. The flare of sunlight felt uncomfortable for a brain that hadn't seen it from this eye in forever, as the world came into focus. He could see everything.
Trilby shone a light into his false eye, and the vision changed exactly as it did in his real one, a mirror revealing the seal contracting appropriately, to the same ratio as his organic eye. He had done it. He could see the world, the first human being to ever successfully use a fake eye. Where so many masters of the art had fallen, he rose above in one afternoon. Motivation was a mother of an inventive force. Still, he wasn't done yet. An idea occurred to him, he could change what he could see. His seal could be changed. Sure, any peon would wear this masterpiece of an eye, but only he could use it properly. He was the only one who could manipulate the visual states, he could change what wavelength of light he could see. He could see heat, see incredible distances, or simply see at night. Though, due to the complexity of the seal, such an act would require not only S rank skill and a working knowledge of the Dark Priest arts, it would also have a hefty cool down requirement, lest he damage the sensitive workings of the eye. Naturally, beyond that he would have to worry about interference. He'd have to shut his natural eye during this mode, or he would only cause interference between the two types of vision, causing him to be able to see nothing but a large multi signalled blur. Still, he had done it, not only gaining back his vision, but the potential of seeing in ways humans could never imagine.
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- Spoiler:
Name: Kuroimibe no Geijutsu: Kami no Me [Dark Priest arts; Eye of God]
Canon/Custom: Custom
Rank: S
Type: Supplementary
Element: NA
Range: Short (0-5m)
Specialty: Fuuinjutsu
Duration: It lasts until the user deactivates it.
Cooldown: Varies with each edition, Details below
Description: Kami no Me is Trilby's attempt at regaining his lost eye. This seal, in it's basic form, is placed upon a false eye, and instead of an eyeball, it has the dark priest arts logo, seen here. Like an iris, this seal dilates with the light density in the area. Like an eyeball, this seal functions as a simple photoreceptor, capturing light that hits it and converting it to electrical signals the brain can comprehend. During this mode, the default mode, it functions identically to the human eye, consumes no chakra and has no increased benefit over the regular human eye.
Yami no Kami [Night Vision]
Unlike the regular human eye, the seal can be adjusted, by careful control and chakra, the seal master fitted with this eye can adjust the spectrum of light the false eye is picking up. Whereas the organic human eye is confined to the section of the electromagnetic spectrum referred to as visible light, the seal can be adjusted to capture normally non-visible sources of electromagnetic radiation, allowing them to see in low visibility situations like an animal would. This is only a mild adjustment from the regular human visual range, and as such the fatigue caused by the change is minimal, meaning once the eye is returned to it's normal state, it is only prevented from state changing again for another four turns. This mode costs 10 chakra to activate, and 5 chakra per turn to sustain. The seal on the eye turns green during this mode, and glows slightly when exposed to light. Any bright source of light during this mode will blind the user entirely, due to increased photo-sensitivity.
Atsusa no Kami [Thermal Vision]
Unlike the regular human eye, the seal can be adjusted, by careful control and chakra, the seal master fitted with this eye can adjust the spectrum of light the false eye is picking up. Whereas the organic human eye is confined to the section of the electromagnetic spectrum referred to as visible light, the seal can be adjusted to capture normally non-visible sources of electromagnetic radiation, allowing the user to see in Infared. Since infared radiation is emitted by all objects above absolute zero, this vision mode allows the user to see in situations regardless of the level of light or lack thereof. The amount of radiation emitted by an object increases with temperature, therefore living creatures stand out unless the environment they're in is of roughly the same temperature. Anything hot, such as fire, can quickly consume the users vision, or mask someone or something if it is between the user and his prey. This state requires adjusting the seals spectrum dramatically, meaning once the mode is deactivated, the eye becomes fatigued, and is unable to change states for another eight turns. This mode costs 15 chakra to activate, and 5 chakra per turn to sustain. The seal on the eye turns red during this mode.
Taka no Kami [Hawk Vision]
Unlike the regular human eye, the seal can be adjusted, by careful control and chakra, the seal master fitted with this eye can adjust the visual acuity of the eye, as well as the magnetism of the lensing effect, causing the eye to function see further and with more precise detail, like that of a hawks. While in this mode, the user's focus on long distance objects is greatly improved, but at the cost of his short range visual perception being neglected entirely, forcing them to rely on their natural senses. This state requires adjusting the seals configuration dramatically, meaning once the mode is deactivated, the eye becomes fatigued, and is unable to change states for another eight turns. This mode costs 15 chakra to activate, and 5 chakra per turn to sustain. The seal on the eye contracts deeply and turns yellow during this mode.
The user must cover his real eye during any visually enhanced mode, as the brain cannot process the normal human spectrum of vision while also receiving the new form of input, as the visual centres of the human brain were not evolved for such stimuli. Also, the seal refers to the real eye as a reference point for certain information, to keep it functioning correctly. If his real eye were to be destroyed, he would be blinded until the eye could adjust, which would take at least eight turns.
To activate any visual mode, the user has to shut the false eye, place two fingers over the eyelid and state the mode's name. To remove it, they must place two fingers over the eyelid and state "Kai" This eye, since it functions fundamentally the same way as a human eye, by capturing light and converting it to electrical signals, is just as vulnerable to visual genjutsu as a normal human eye. Trilby can implant false eyes into someone who is blind as long as they have an in-tact Optic nerve, though they won't be able to use the eye modes, simply the default, normal human vision.
Hokage: 
Kazekage: 
Raikage: 
Tsuchikage: 
Mizukage: 