All Questions
6
questions
0
votes
1
answer
50
views
Why do you think people may have different iris but their pupil are black and why when you push your eye at bottom you see two image? [closed]
Why do you think people my have different iris but their pupil are black?
3
votes
1
answer
4k
views
Why I see everything which is red in 3D with my prescription eyeglasses?
I have prescription eyeglasses with -1.5D power (Myopia). I have been wearing eyeglasses for past 5 years and recently changed to blue light filter ones. Now I recognise everything red in colour as a ...
5
votes
3
answers
2k
views
Why do different colors appear to move at different rates when I shift my head while wearing eyeglasses?
I have significant nearsightedness (and some astigmatism), but see just fine with eyeglasses. One phenomenon I've noticed is that when I shift my head side to side or up and down while keeping my ...
- 181
2
votes
1
answer
93
views
Refractive screen for myopia [closed]
Is it possible to create a screen for a computer monitor to allow a Myopic person to see the screen without glasses?
2
votes
1
answer
526
views
What would happen if the aqueous and vitreous humour of a human's eye are replaced by some harmless transparent liquid of different refractive index?
The title says it all. What would the person be able to see?
Note
By harmless, I mean that it is non-corrosive, non-toxic, etc. The liquid doesn't cause any biological damage to the eye or any other ...
- 291
5
votes
0
answers
7k
views
What is Curvature of eye lens?
I wanted to know what do we mean by "curvature of eye lens", is it the reciprocal of $r$ i.e $c=1/r$ or is it synonymous to radius of curvature of the eye lens. Moreover how does aperture relate to ...
- 159