Astigmatism is a vision condition that causes blurred vision due either to the irregular shape of the cornea, the clear front cover of the eye, or sometimes the curvature of the lens inside the eye. An irregular shaped cornea or lens prevents light from focusing properly on the retina, the light sensitive surface at the back…

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Aniridia, which literally means “without iris,” is an eye condition characterized by the absense of partial absence of the iris muscle tissue. The iris, which is a disk of muscle suspended behind the cornea and immediately in front of the lens, regulates the amount of light entering the eye by adjusting the size of the…

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Definition:   Amblyopia or “lazy eye” is a characterized as poor or blurry vision in either one or both eyes caused by either no transmission or poor transmission of the visual image to the brain during early childhood. Causes:   This condition occurs during young age because most of the visual system’s development in humans is complete by 10 years…

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