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You don't provide your age. However I will assume that you are older than 18 years. If so your astigmatism is increasing a little faster than usual for an adult. Possibilities include 1) your previous refractions were inaccurate there is no real change the newer prescriptions are more correct 2) your astigmatism is increasing but you don't have an eye disease causing it to do so 3) you may have a condition such as keratoconus which is a progressive sagging of the cornea that often starts off as rapidly increasing astigmatism. You should be examined by an eye surgeon who can obtain a test called a corneal topography.

2014-12-23 11:06:33

Ben