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Near-sighted vs. Far-sighted & Astigmatism
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Myopia (Nearsighted)

Myopia is also referred to as nearsightedness . It is a vision condition in which objects that are closer to the eyes are seen clearly, but objects farther away appear blurred. Nearsightedness occurs if the length of the eyeball is too long or the cornea (the clear front cover of the eye) has too much curvature. As a result, the light entering the eye isn’t focused correctly and distant objects look blurred. 

Some research supports the theory that nearsightedness is hereditary. There is also growing evidence showing that it may be influenced by the visual stress of increased amounts of close work.

A common sign of nearsightedness is difficulty seeing objects that are far away like a movie or TV screen or the chalkboard in school. A comprehensive eye examination performed by Dr. Felton will include testing for nearsightedness. Dr. Felton can prescribe glasses or contact lenses that correct nearsightedness and make your distance vision clearer.

Hyperopia (Farsighted)

Hyperopia is also called farsightedess. It is a vision condition in which distant objects are usually seen clearly, but close ones do not focus correctly. Farsightedness occurs if your eyeball is too short or the cornea does not have enough curvature, so light entering your eye is not focused correctly.

Common signs of farsightedness include difficulty concentrating and maintaining clear vision when viewing a near objects, eye strain, fatigue and/or headaches after close work, aching or burning eyes, irritability or nervousness after concentrating for a long time period. Many times, vision screenings, often done in schools, are generally ineffective in detecting farsightedness. A comprehensive optometric examination will include testing for farsightedness.

In mild cases of farsightedness, your eyes may be able to compensate without wearing glasses. In other cases, Dr. Felton can prescribe glasses or contact lenses to optically correct farsightedness by altering the way the light enters your eyes.

Astigmatism

Astigmatism is a vision condition that causes blurred vision due to the irregular shape of the cornea. An irregular shaped cornea or lens prevents light from focusing properly on the retina, the light sensitive surface at the back of the eye. As a result, vision becomes blurred at any distance.

Astigmatism is a very common vision condition that many people have to some degree. Small amounts of astigmatism usually don't have a large affect on vision and sometimes may not require treatment. However, larger amounts cause distorted or blurred vision, eye discomfort and headaches.

Astigmatism frequently occurs with other vision conditions like myopia and hyperopia. Together, these vision conditions are referred to as refractive errors because they affect the way the eyes bend or "refract" light.

A comprehensive eye examination wthat correct the astigmatism by altering the way light enters your eyes.

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