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EYE PROBLEMS AND DISEASES

Myopia:
Near-sightedness or myopia affects 25%-35% of the population and this disorder can be easily corrected through surgery or lenses. Individuals with myopia have difficulty seeing distant objects. They have a refractive error which means that light rays bend incorrectly in the eye for transmitting images in the brain. The light rays emanating from the image concentrate in front of the retina rather than directly which causes blurred vision. This runs in families and appears during childhood. Sometimes it gets worse with age. If you are myopic then you may experience eyestrain, headaches, fatigue and squinting.

Hyperopia:
Farsightedness or hyperopiais a common vision problem that can affect about one fourth of the population. People have difficulty focusing on close objects. They will experience headaches, eye strain when working at close range. This problem occurs when light rays enters the focus from behind the retina instead directly on it. The eyeball is usually shorter than normal. Some people confuse hyperopia with presbyopia which causes near vision problems.

Astigmatism:
Astigmatism is a vision condition that causes blurred vision due to the irregular shape of the cornea, curvature of the lens in the eye, or the clear front cover of the eye. It prevents light from focusing on the retina. As a result the vision becomes blurred at any distance. It is a common condition that usually doesn’t affect vision and do not need any treatment. These are usually hereditary and are present from birth. It can occur with other vision conditions such as hyperopia and myopia. This condition can develop following an eye injury.

Presbyopia:
Generally, presbyopiaoccur around 40 especially when people experience blurred vision. You will never be able to escape presbyopia even if you never had a problem before. When people develop this problem they find they require holding reading materials at arm’s length in order to focus properly. This is often caused by age. It differs from other eye problems which are related to the shape of the eyeball and are caused by environmental and genetic factors. Presbyopia usually stems from a gradual thickening and loss of flexibility of the natural lens inside the eye.

Cataracts:
Cataracts are cloudy portions in the eye lens which is usually clear. It can develop in one or both the eyes. A clear lens usually allows light to pass through to the back part of the eye so that the patient is capable of seeing well defined images. If a part of the lens become opaque does not pass easily then the vision becomes blurry. The more the lens is opaque the vision will become even worse. There are two types of Cataracts: Congenital and age related. Usually people more than 50 are susceptible to have cataracts.

You should have a comprehensive eye exam to ensure that your eyes are in perfect health. Early treatment might save your sight.