Doctor insights on:
Online Depth Perception Test
Probably little: Congratulations on the 20/20 vision - is this in both eyes separately? If only in one eye, that could be the reason for the lowered depth perception. Some are born without the part of the brain wiring that makes depth perception. Generally loss of depth perception is not fixable but generally also is not a problem for most life activities. ...Read more
Separate functions: 20/20 refers to the acuity of vision, hopefully at this level in both of your eyes. Depth perception (stereovision) refers to a brain function in which the input from both eyes together is summed producing an image in depth. Some lack this part of the brain wiring but can see well otherwise. This may be true for you. ...Read more
At 3d shows, I notice the 3d effects maybe 2-3% of the time. The rest of the time, the picture looks the same with one or both eyes open. All the tests I've tried suggest stereoscopic vision/depth perception is fine ... so why can't I see 3d?
Apparently about 10%: of people can not see in 3D. Because humans have both eyes in front, the possibility of having them work together to create depth perception exists. The fusion in our brains of two slightly different pictures from each of our "cameras"/eyes gives the sense of three-dimensionality. Lazy eye and strabismus are conditions that interfere with eye coordination. It can be corrected, esp in children. ...Read more
Stereo vision issues: Stereovision is the ability to see in depth using the two eyes together. If one eye sees poorly or the eyes do not work well together, your depth vision is likely to be impaired. If this is your problem, you will notice this especially if you look at a stereovision movie like avatar when the experience will not be so well for you. ...Read more
Depth = 3D vision : Depth perception, or 3-d vision, can easily be tested by an ophthalmologist in the office. Any problems in depth perception arise from either one of the two eyes not seeing well, or the eyes are not aligned properly. An ophthalmologist can tell you which of the following can cause this problem in your child and how to treat it. ...Read more
When a good friend of mine lays down either on his back, or sides his depth perception goes haywire, and if he is reading, he can see the words, but does not comprehend what he is reading. It is just a bunch of words.
No: 3d glasses do not increase depth perception. They allow one to experience 3d vision from a flat screen when the image has been formatted for this. People who have poor 3d vision cannot see in 3d in any situation. 3d vision develops in early childhood and cannot be changed after this time. ...Read more
Binocular: True depth perception (stereopsis) is a function of the visible portion of the brain requiring input from both eyes. The ability to fuse the two eyes is inborn and a very strong reflex. It is a wonderful, almost magical function of a portion of the vision. There are many books with interesting pictures which requires true depth perception for them to work. ...Read more
Separate functions: Binocular clues involve the use of stereopsis which is true depth perceptions dependent upon using both eyes together (and is what you use when you see a 3-D movie). Monocular clues depend upon the catalog of image types and sizes so you know how far things are by these clues. Those who have lost one eye, depend upon monocular cues for depth understanding. ...Read more
Yes: Mono vision depending on the disparity in vision between the two eyes can be a definite cause ifa drop in depth perception. You can test this put by comparing with contacts vs glasses by taking the stereo fly test. You might be under corrected and this is causing night myopia. ...Read moreSee 1 more doctor answer
No: Neither should fade in normal aging. Near vision does "fade" in a condition called presbyopia. Loss of peripheral vision is sometimes due to serious conditions such as a retinal detachment or glaucoma or retinitis pigmentosa. Depth perception problems can be due to lose of vision in one or both eyes. ...Read more
In monovision with contacts dr said my depth perception is lessened. How does this affect driving?
Is it common for people to start losing their peripheral vision and depth perception at the same time?
No: Depth perception is a binocular function, meaning that with both eyes functioning you should not have depth perception problems. Peripheral vision can be affected by certain things, most commonly glaucoma, but strokes can affect this. Both are usually not affected. ...Read moreSee 1 more doctor answer
Not too much: There is a center for stereoscopic vision in the brain. If defect you might have poor or no stereoscopic vision which is essential for depth perception. This also can be due to poor vision in one eye. From a practical standpoint, loss of this function is of minimal problem. You need excellent stereo vision to work as a watchmaker, or to be an excellent baseball player. Little else is affected ...Read moreSee 1 more doctor answer
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