I watched Chu2koi and with only one Eye (The Experiment Series)

chu2koi experiment one eye

> Minus one eye. Sure, why don’t you?

Imagine that, you now temporarily can only see through one eye and only eye alone. What do you do as of that moment, aside from being troubled by the hypothetical idea of such abrupt imposition on your sense of sight, questioning what brought such request, and wondering exactly how many minutes and seconds means temporarily?

The thought alone is troubling, isn’t it. Understandably rarely does one willingly gives up gift of vision even momentarily unless there is a reason. From letting the individual know what is happening to what isn’t, vision plays one of the biggest roles in anyone’s existence shaping the world around them. Its importance goes beyond anything that could be stated to the degree that it would be far an easier task to list what one couldn’t do without it. So then whatever happens in the case the experimenter momentarily can only see through one eye. Whatever happens in the case a certain eyepatch comes into play. Whatever happens the world for that short amount of time. Whatever happens to our vision.

Such is the case. 

The question is the individual up for the arduous challenge of this experiment? The more the pressing question is –

Chu2koi experiment eyepatch requirements

What is Required

1. To watch Chu2koi. Methods up being left up to the reader.
2. Have something to cover completely one of the eyes, not both (important).
3. An eyepatch. Highly encouraged.
4. To be ready to miss potential critical developments.
5. The gift of patience.

Take note that such requirements are to maximize the Chu2koi experience – to fully comprehend what it means to be an eyepatch wearer. The breaking news is that we’ll have to take one of our eyes out of commission for this experiment, regrettable as it may be, this is the price we pay. However, I’ll not ask to senselessly pepper spray one of the reader’s eyes. That’d be harmful for the eyes in addition to being impractical when there is a more practical way to achieve just the same results minus the eye irritation. The experiment will ask the reader to kindly cover one of the eyes with a material, piece of fabric, dark glasses, or with one of the two hands. Consider the first three more than the latter one as any arm will get tired after a few minutes into the experiment. Unfortunately, the human body has not been designed to go through life with any arm covering an eye for a prolonged amount of time therefore they are bound to eventually get tired. For that reason, it is advised that an – eyepatch – is highly encouraged for this experiment to keep this experiment as closely and neatly as possible.

In the same way throughout the experiment it is highly advised to stay focused and not be distracted by outside elements whatsoever they may be unless critical in nature. In case anyone asks exactly what the experimenter is doing, the experimenter can respond he or she is conducting an experiment on Chu2koi, that using only one eye is essential, and the eyepatch he or she has on happens to necessary. They will understand. When all of these requisites have been addressed and with preparations completed the Experiment Watching Chu2koi with only one Eye can begin.

The sudden partial loss of the full visual field

Chu2koi eyepatch introduction

Figure 1. Regardless of temporary loss of vision, we wish to carry
out this experiment.

Eyepatch is on, but I won’t tell you on what eye. The first thing the experimenter notices is the visual field being reduced greatly the exact moment the experiment begins. Similar to other past experiment the effect is instantaneous as the experimenter notices reality around him changes, altering perceptions via his or her vision.

With an eyepatch in place the experimenter discovers many details he or she may not have normally considered before. Such as that having one covered eye leaves the other eye to do all the work for instance. Not that the covered eye has gone away. Not that it won’t be missed and not that long naps are not great. But for the moment it is, the eye is momentarily gone. At the moment the eye is subjected to the eyepatch the eye is temporary removed in a sense so the regular vision it provides is lost until it is once again regained. Without fully covering yet the subject of the eyepatch experience, we explain that in any case the experimenter’s original vision would cease to be 100% regardless of on what eye the eyepatch goes.

Note that vision that is less than at its possible maximum strength does not sound thrilling to many, possibility normally not to anyone. Moreso, in the case the experimenter already had poor vision the additional stress of reducing the normal field of vision realistically sounds like a counter-productive task. It is not so for having an inexplicable fondness for eyepatches that the experimenter employs eyepatches but for the sake of the research.

Of the individual’s actual visual field, blind spots, and general hazards

Eye visual field

Figure 2. the human visual field of vision providing "almost" 
180-degree forward-facing horizontal field of view.

It is not figuratively we mention that covering one eye reduces a person’s visual field. By nature a person can see more than 50% of his whole field of vision despite having an eyepatch on potentially reducing one’s vision. This can be attributed to the person being far from a motionless body. Up. Down. Left. Right. We can direct the vision to any place we need to and to as many places as needed. It is so the person can utilize the one working current eye to do the work for both eyes by skillfully directing it a place at a time as humanly possible.

Directing the eye one place at a time is the prime word as the eye (even both) can only cover a certain amount of field of vision at any given time. Consequently, despite the field of vision covering an area the focus is only on certain parts. Recall then when you put your hand in the middle of your face, between both your eyes completely obstructing your view. That is much correct – you could not see straight ahead no matter how much you tried.

Under normal circumstances you would look at to sides to guide you around. After all the remaining 50% of each side of your eyes are eyepatch-free meaning you could still catch what happens from the corner of your eyes. However, these are not normal circumstances and this is not a normal experiment. It is not even a normal blog. Since we’re conducting an experiment especially on Chu2koi it means our full attention is on Chu2koi alone, focusing on other outside elements defeats the purpose of the experiment so we do not. Eyes are set on the screen before us.

Humans, animals, all creatures will always “blind spots” in their visual field because vision is not all-seeing in the sense that it only captures a certain area, usually what is in front of them. Naturally, the person can see what is in front when facing ahead and as much as his vision would cover, however, the same does not happen when the person wants to see what is behind him. The person cannot do this while facing ahead meaning he is forced to either slightly turn his head (not head tilt) or completely turn around in order to see what is behind him. The example presumes there are no mirrors nearby in case the reader is curious, but just the same, in the point demonstrates the visual field is restricted to the direction the person faces at any given moment.

However, it is not so in such example that the risk of lack of vision presents itself. Or consequently, in it that the idea of deliberately wearing eyepatches is discouraged. Yet, still in all of it the question that arises relates reasons why an individual would wear an eyepatch unless prescribed.


Figure 3. Complete field of vision pre-eyepatch experiment.
Definitely not Rikka's vision due to the right eyepatch.

To provide a simple example before a more serious one – an incoming frisbee that gently hits the side of your head could not have been seen (but it could have been heard) coming from the left in case the individual’s left eye would be covered by an eyepatch. Yet the idea is not to based it on theoretical frisbees being thrown around or why they would be thrown at a person wearing an eyepatch in the first place. The idea is that certain elements can be present outside the visual field of a person which they may be completely unaware of and, in some cases, they may come to create risky situations.

To provide a more common example we refer to car collisions. Naturally, no one means to cause traffic accidents but due to blind spots they may happen nonetheless. The hazards of lack of vision are more realistically present outdoors where the individual interacts with the world and is expected to have access to his full visual abilities. It is outdoors the individual is prone to more hazardous accidents than compared to indoors where trepidations about hitting a pinky toe on doors are the standard.

It is a wise advice to keep one’s eyes on the road and so have an unobstructed vision at all times. For instance, when changing lanes it is important to know the distance between one’s car and the other cars, and the distance one cover within those seconds. When the other cars are far away the driver can see them with no trouble from the mirrors, however, when they are too close they fall into the blind spot thus the driver cannot see the car behind him. Lack of proper field of view is when accidents happen – also texting while driving or replying, even when using less than twelve characters. Driving. It can be dangerous for the individual and for others. Click it or ticket it. Do it the right way. Also don’t overuse emoticons. Don’t be an asshole.

Swiftly turning around can really make the difference between accidents and being the guy causally slowing down while driving by the scene, and not being the guy in it. In such situations lack of vision would have made the situation escalate into a massive disaster. All because the individual did not have access to both eyes.

The Right Eye (and concerning an individual’s personal favoritism)


Figure 4. Rikka's true POV. The right eye's vision is obstructed by
the eye-patch. The experimenter is unable to see the full action
missing any self-indulgent spasms of mental disorders.

All that said about eyes and the importance of the two it cannot be said there is even a favorite eye at all. Nonetheless, should there be a need to pick one the individual would be likely to pick the eyes he or she feels most comfortable with. For instance, the one writing this would be likely to choose the right eye over the left eye. While it may escape oneself (and it might not matter anyway) what the exact strength of both eyes are or whether or not the right eye has lower vision than the left eye – sometimes the person simply likes one eye more than the other one.

Chances are the individual reading is right-handed, and chances are the reader prefers his right eye better. If not, the reader is neutral to the idea of having preferences when it comes to left or right eyes. The same applies for the opposite.

Note that when the individual covers the right eye, depending on whether this is the dominant eye or not, the pressure jumps to the other eye. When we place an object to block the vision from the dominant eye, the dominant eye is temporarily magically turned off. Before proceeding, remember that the dominant eye might not necessarily equal favorite eye yet in many cases it might be. It is the idea that one eye feels like it is more dominant than the other. Once the dominant eye is covered the less dominant eye becomes the new dominant eye as a result now that the position is available.

This takes us to the left eye.

The Left Eye (concerning an eye that is not the right eye)


Figure 5. The left eye is obstructed as the right eye was. Once again
a character is not visible. Yet, said character can be spotted the
moment she crosses onto own right eye field of vision.

By now, the experimenter feels slight discomfort from the eye that is not covered by the eyepatch. That is normal. Assuming that, like the writer, the individual regularly uses both eyes to watch anime. The eyes will feel strange because neither the individual nor the writer are used to using only one eye for a prolonged amount of time. If the experimenter does (while having two working eyes) then the experimenter is ahead of this writer in this experiment, and we sure would love to hear some feedback on that.

When we switched from one eye to the other we now see everything else that we could not. Precisely. The remaining 20% of what we could not see when the eyepatch was on that eye. As any field of vision once obstructed the individual loses the vision from that area until the path is unobstructed – in this case when the infamous eyepatch switches places. Now that the eyepatch is on the other side one can see what it could not.

Yet not without its drawbacks. Though the eyepatch may be gone from that eye we cannot see from the other side now. As common sense dictates the dark “unknown field” has not gone away, not by a long shot. The individual wears an eyepatch and this changes everything the moment the person does. No matter what eye it is on as long as it’s there, still roughly 20% of what it could not be seen has moved from one side to the other. With the eyepatch vision is never a hundred percent.

Of impossibilities and counterproductiveness regarding placing an eyepatch between the eyes


Figure 6. The obstructed view renders the experimenter unable to
watch Chu2koi as recommended. (Note. Not the Gantz ball)

If the experimenter is a cyclops it means shameless cheating and we do not want to see them. If the person is not he is to proceed.

It has not once mentioned that the experimenter ought to place the eyepatch in the middle between the eyes. Reason being its absurdity as it is an eyepatch after all. The eye protector is supposed to be placed on one of the eyes, hence we assume where it gets the name of eyepatch in the first place.

Nevertheless, if such feat was conducted it’d look like much like a completely dark image the person cannot make out anything out of it, only barely the corners. It is then discouraged to do so, instead it is encouraged to pick the right or left eye to place the eyepatch on. For the record this experiment is conducted using a laptop. The bigger the monitor the more bits the experimenter will be able to catch. In this case, I cannot see much without directing my vision around to see what I normally would have no trouble with. This also answers the question why an eyepatch must go on one eye, not on both, and definitely not on neither. This is very important.

The importance of healthy eyes

chuu2koi care of eyes

Figure 7. Keep eyes lubricated. Ask politely someone else to do it 
in case the individual requires help. It is not uncommon.

To provide an analogy, eyes are not like car tires. They are not changed depending on the season or are especially made for certain roads. They are not tires at all. Eyes cannot be easily “calibrated” back into shape with one visit to the mechanic either. The left and right eyes do not have the same vision strength either. Initially, they may have but after years of every day routines, being exposed to lack proper lightning, and visual mistreatment coming in various forms such as late night TV shows and incredible innumerable hours of internet – eyes get tired. Eyes get tired I guarantee.

Eyes are not like tires we mentioned. They are not muscles either that get stronger each time the body works out a sweat. Eyes are the total opposite of that. They are like coffee and milk, and whatever the opposite of tea actually is. Vision is not like leveling up, it does not to get any stronger over time. Eyes are like any other material after prolonged use such as an expensive jacket, sneakers, or shocking scenes for the sake of shock value, they get weaker the more they are used. And so its (visual) strength naturally decreases over time.

Experiment is over. Congratulations are in order. You can now take off the eyepatch.

Chu2koi experiment eyepatch final

[End of Experiment]

By the end of the experiment the experimenter can safely remove the eyepatch. The vision returns, the pressure is no longer present, any blind spots created after the eyepatch are gone. Everything returns to normal. With it the whole field of vision returns, the experimenter once again regains the natural ability to see as he or she did prior to the experiment.

As it has been observed throughout the procedures the idea of the eyepatch was discussed and examined along with the temporary partial loss of vision. With the introduction of the eyepatch the ability to see was reduced for each eye. It was introduced the seldom discussed idea of dominant of eyes, the natural discomfort from using only one eye instead of two, the limitations of vision as “blind spots”, lastly the role left and right eyes play in creating a true complete image we refer to our “regular vision”. The overall conclusion, lack of vision affects the individual reducing the natural field of vision giving instead a clouded not whole image of the world. Eyepatches remain to be use as intended – as means to cover an eye when required or prescribed.


1 thought on “I watched Chu2koi and with only one Eye (The Experiment Series)

  1. First off, nice blog! It’s refreshing to see such a wide focus.

    This experiment was well written overall, but there is a glaring flop in the handling of blind spots. When you analyze the image of Rikka’s vision, you vastly overestimate the amount of visual range lost. See that dark rounded area at the right edge? That is simulating the edge of vision obstructed by the eyesocket and nose. In practice the visual range is much wider than a TV display, with the far sides mostly ignored.

    Yet there is a distinct overlap due to the properties of light and the lens of the eye. To demonstrate, position your arm and point forward so that your hand is around the middle of your field of vision, focus on your pointing finger. Now without moving anything else, close your right eye. You will find that not only can you see all of your hand, but a wide range to the right of it as well!

    Also, the eyepatch in the middle pic is just hilarious. Keep up the good work!

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