the image of a near by and far away object always forms on retina in a normal human eye. how is this drawn above when neither the retina nor the lens can move from their place?
Answers
Answer:
Hey this the answer
Explanation:
Focusing the light. When light bounces off an object and reaches the eye, it must be bent so that its rays arrive at the retina in focus. Four different surfaces bend the light as it enters the eye: the cornea, the aqueous humor, the lens, and the vitreous humor. When all four of these bend the light appropriately, you see a focused image of the object. The eye can focus objects at different distances because the ciliary muscles push and pull to make the lens change shape. When you look at an object that is far away, the ciliary muscles relax and the lens has a flattened shape. When you look at an object that is close by, the ciliary muscles are contracted and the lens is thickened. This is one of the features that makes the eye superior to any manmade camera. To adjust a camera lens for the distance of an object, you must move the whole lens forward or back. If our eyes worked the same way, we would need long tubes sticking out of our eyes so the lenses could move back and forth. Instead, our lenses just change shape to adjust for the distance of an object. This takes up much less room, and is probably more attractive!