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First of all, I should quote the sentence from the MOST reliable ophthalmology sourcing in the world - American Academy of Ophthalmology: Section 11 - "Lens and Cataract" "The equatorial diameter of the unfixed human lens measures 2 mm at 12 weeks and 6 mm at 35 weeks. Both the growth and the maturation of lenticular fibers continue throughout life." The ...


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With age your eyeball, as everything else in your body with time, actually shrinks. In the developing stages I'm not sure when it reaches its full size though. So this is why elder often report far sightedness, when they need reading glasses. This is because the image no longer falls on the retina perfectly. When you are near sighted your eye is actually too ...


4

No. In fact the lens of the eye, which is nearly optically perfect in humans, does not change or grow after it is fully formed around week 26 of gestation. Interestingly this is why one of the cues for identifying young children is having small faces with large eyes. This also the case for puppies and cats and other animals, who are mostly cuter when they ...


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Let us say this myopic patient has amplitude of accommodation of 8D. The patient accommodates 8D beyond far point, thus his near point is 1/6+8=0.07m (7.1cm). If we compare the case with emmetropic eye with accommodation amplitude of 8D, the near point is 1/8=0.12m (12cm). So, yes, near point of myopic person is different from an emmetropic one. But, you ...


2

The cones and rods would not contain the images from our dreams. Visual scenes get transferred from the eye to the thalamus (which serves as a relay to the cortex) by optical fibers that are overwhelmingly uni-directional (information is carried from the eyes to the thalamus and not vice-versa). Dreams do, however, activate the thalamus, the visual cortex, ...


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There are practical questions in ophthalmology and you've asked someone that has a common theoretical answer: 6 meters. However, you should know that from the same theoretical point the far the object the less accommodation we need, so the second answer is - infinity. What is the difference? From the practical point the accommodation between this two ...



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