the accomadation power of the eyes lens of a young man whose far point is infinity can vary form 40D and 44D
1.what does its statement mean
2.what is the distance of the retina of the eye for the young man
3. what is the position of near point of eye
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(1)Diopter is focal length of a lens expressed in Meters.This means that focal length of human eye can vary from 40 to 45D,while seeing objects at different distances
(2)The distance of Retina from the eye lens is about 25mm generally.
(3)The near point of normal vision is around 25 centimeters,for person with a normal vision.
(2)The distance of Retina from the eye lens is about 25mm generally.
(3)The near point of normal vision is around 25 centimeters,for person with a normal vision.
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