Dr Sweeny (Los Gatos, CA 95032-1435)

• Which contact lens should I use for Astigmatism?

  I know that toric lenses have two powers that can used for astigmatism and myopia or hyperopia. Since you only have astigmatism, a spherical soft lens will suit you fine.

• Which light can cause damage to your eyes more easily, fluorescent lights or incandescent lights?

  Lights should not be too light or dim,otherwise they can cause eye strain easily.The incandescent lights are better for your eyes.

• Am I having an eye infection or pink eye?

  If people around you are having pink eyes and you get in touch with something they have used,it is possibly you are having pink eye.You'd better visit your doctor and have a check.

• How does the astigmatism affect vision?

  Astigmatism refers to an abnormal, elliptical shaping of the front surface of the human eye, or cornea. Although it is part of the larger group of eye conditions known as refractive errors, a category that includes the more commonly known ailments of nearsightedness and farsightedness, astigmatism is neither a disease nor a certain cause of vision problems. Only in cases where the curvature of the cornea is severe enough to prevent the human eye from focusing in on light rays will corrective lenses possibly be required. Unlike nearsightedness or farsightedness, someone with severe astigmatism will experience distorted or blurred vision at both close and long range. They may also suffer from headaches, fatigue and other discomfort as a result of the abnormal curvature. Source: http://www.sophisticatededge.com/does-astigmatism-affect-vision.html

• Are UV coatings on prescription lenses are as effective as sunglasses?

  I think the UV coating is not as effective as sunglasses.As the lens is clear ,they can't block the 100% lights as the tinted lenses do.

• Does this mean I have astigmatism?

  For people with astigmatism,they can't see both near and distant without squinting.They have difficulty focusing on printed words and lines.Sometimes they may have eye strain or headaches.For your case,I think it is not astigmatism.It is common if you stare at something for a long time.

• I see a dark spot at the bottom of my vision?

  The dark spot may be blood in the eye. The urgent thing is to see a doctor to find out the problem.

• I have blurry vision after being punched?

  A punching in the eye can cause serious damage.It may be retinal detachments or bleeding.It is not late to have an exam to determine what the problem is.Just go to your doctor and have an exam.

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