What happens if elasticity of eye lens is reduced to zero?
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We call this presbyopia. This is the reason people need reading glasses or bifocals when they get older. Their natural lens cannot accommodate or focus at different focal lengths.
In most cases the lens elasticity is not zero in a clear lens, it is cataract formation that causes this lack of elasticity. And if the cataract affects the visual axis, it causes blurry vision.
When standard cataract surgery is done using a standard mono focal lens, that lens does not accommodate and so the patient is in an effective state of zero elasticity. But nowadays most of the lenses are flexible to allow easier insertion but they still don't accommodate. Even the accommodating IOLs (Intraocular lenses) lose their ability to accommodate after some time because the capsular bag that they sit in scars.
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In most cases the lens elasticity is not zero in a clear lens, it is cataract formation that causes this lack of elasticity. And if the cataract affects the visual axis, it causes blurry vision.
When standard cataract surgery is done using a standard mono focal lens, that lens does not accommodate and so the patient is in an effective state of zero elasticity. But nowadays most of the lenses are flexible to allow easier insertion but they still don't accommodate. Even the accommodating IOLs (Intraocular lenses) lose their ability to accommodate after some time because the capsular bag that they sit in scars.
Hope it helps ✌✌ Please mark it as brainliest..
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