Wednesday, August 1, 2012

Astigmatism & Monovision Cataract Surgery

Question: Is it necessary or important to correct astigmatism of .75 D when having cataract surgery with monovision lens implants?

Answer: There are some considerations that make the correction of small amounts of astigmatism even more important than one might think, and certainly with monovision lens implants achieving the best possible vision is one of those considerations. While the amount of .75 D might seem inconsequential, if it is oriented obliquely or vertically oriented it will cause meaningful degradation of vision that can adversely impact one's ability to achieve success with monovision lens implants after Cataract Surgery. Further, monovision lens implant success is dependent on "blur interpretation and tolerance" and leaving any amount of astigmatism has the potential to cause more difficulty in adaptation. Listen to the advice of your Cataract Surgeon and correct the astigmatism as part of your Cataract Surgery by whatever means he or she suggests.

Important Note: The information presented on the About Cataract Surgery Blog or provided in response to a request for information in the Ask Cataract Surgeons section on is not intended to diagnose or treat eye problems, eye conditions or eye diseases including appropriateness of treatment, risks, complications or side effects as related to Cataracts, Cataract Surgery or Lens Implants. In particular a response to an inquiry made on the Ask Cataract Surgeons section of is not meant to take the place of the professional medical care provided by your eye doctor, ophthalmologist and Cataract Surgeon. Contacting us via e-mail or any other means is not a substitute for medical care.

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