Question

What is the far point of human eye with normal vision?
Name two nervas linked with retina.
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Answer 1

Answer:

The simplest model of the human eye is a single lens with an adjustable focal length that forms an image on the retina, or the light-sensitive bed of nerves which lines the back of the eyeball. The eye is either relaxed in its normal state in which rays from infinity are focused on the retina, or it is accommodating adjusting the focal length by flexing the eye muscles to image closer objects. For a normal eye, the near point is located 25 cm from the eye far point. The far point of the eye is the location of the farthest object on which the fully relaxed eye can focus.

solution

Answer 2

The near point of a human eye, defined to be s = 25 cm, is the shortest object distance that a typical or "normal" eye is able to accommodate, or to image onto the retina. The far point of a human eye is the farthest object distance that a typical eye is able to image onto the retina...

It has three layers of nerve cells and two of synapses, including the unique ribbon synapse. The optic nerve carries the ganglion cell axons to the brain, and the blood vessels that supply the retina. The ganglion cells lie innermost in the eye while the photoreceptive cells lie beyond...