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Most people classified as blind still retain some ability to see. They often have significantly impaired vision but can discern light, shapes, or other figures. Low vision refers to a class of visual impairment that cannot be corrected by glasses or contact lenses. A number of conditions may cause low

Color blindness, also known as color vision deficiency, occurs when an individual cannot distinguish between certain colors like red and green or, less commonly, blue and yellow. Cause of Color Blindness Light-sensitive tissue, the retina, lines the back of the eye and consists of two types of light

Nystagmus is a vision condition characterized by repetitive, uncontrolled eye movements. These involuntary eye movements may be side-to-side, up and down, or in a circular pattern, which hinders the eyes’ ability to focus on a steady object. Individuals with nystagmus may hold their heads in unusual

The condition known as a macular hole refers to a tiny break in the macula that results in blurry or distorted vision. To fully understand the condition, one must understand eye anatomy. The macula is a spot located in the center of the retina (the back portion of the eye). Located where light comes

As we age, our eyes—like the rest of our bodies—begin to lose flexibility and strength. When this happens to the lens of the eye and its surrounding muscles, your lens will become stiff. This makes it harder to see close objects clearly because the eyes can't focus properly. It's a natural part of