![]() ![]() This condition is also known as metamorphopsia. A particular type of distorted vision causes people to see a grid of straight lines as zigzag or wavy lines. Visual disturbances can take many forms: blurred vision, cloudy vision, short-sightedness, long-sightedness, distorted vision, and even blindness. Visual disturbances could be caused by a defect at any point in the complex visual pathway. However, things become disconcerting when our pictures of the outside world begin to look abnormal. We do not normally think about this complex process while seeing the world around us clearly and sharply. ![]() Upon receiving the light, the photoreceptors in the retina generate electric nerve signals that travel to the brain, where they are finally put together in a mysterious way to create the sensation of seeing.
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