can lenses cause astigmatism to get worst?
i have astigmatism since i was little. I wore glasses for 14 years and it just get worst. So now i put lenses on. i have ciba vision toric monthly lenses for astigmatism but there are no marks on them. i wrote to ciba vision and they answer me that their toric lenses have no marks. I experience blurriness so i was wondering if my vision can get worst because of that.
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Astigmatism is a condition where the cornea has an irregular shape that causes problems with vision. The cornea, the clear covering of the lens and iris, serves as a protection to the eye and helps transmit light thru the eye. The cornea is normally spherical in shape, but those with astigmatism may have their cornea more oval shaped. This oval shaping causes light to scatter instead of focusing to a single point as it passes thru the cornea and results in blurred vision.
Corrective lenses are a conservative method of dealing with astigmatism. Glasses and contact lenses are able to counter the effects of the irregularly shaped cornea and provide vision considerable improvement.
And another effective method is LASIK eye surgery. LASIK eye surgery is by far the most commonly selected procedure for refractive eye surgery. During the LASIK procedure, a small incision creates a corneal flap and an excimer laser is used to reshape the cornea. The excimer laser is different from other lasers in that it doesn’t produce heat. Once the procedure has been completed, the corneal flap is repositioned normally and the healing process begins. Most people can notice quite an improvement in vision immediately upon completion of the procedure.
Your vision will continue to change for most of your life. In most cases it will get worse. Nothing about wearing glasses will make astigmatism worse. Some rigid contacts are able to re-shape the eyeball but that is not necessary in your case..