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The human eye is able to focus on both near and far objects by adjusting the curvature of the lens, which changes the focal length - a flatter lens is used for distant vision and a more curved lens is used for near vision. Common eye defects occur when the eye is unable to properly adjust the focal length of the lens or the distance between the lens and retina is altered. The document also discusses binocular and stereoscopic vision, various eye diseases like cataracts and glaucoma, eye infections, and prev

Author

JAYDEN JANSZ

Language

EN