Monday, July 30, 2012

Toric Lens Implant & Astigmatism Uncorrected

Question: I had a toric lens implant after cataract surgery that left me with a good bit of astigmatism. The cataract surgeon said that it was implanted correctly but since my correction fell between a T5 and a T6 this was the best result I could expect. Does this sound right? 

Answer: It is not possible to tell why you have uncorrected astigmatism after Cataract Surgery with the toric lens implant without really knowing what the preoperative corneal curvature measurements were, what the corneal topography demonstrated and whether the residual uncorrected astigmatism is of the same axis of orientation as the preoperative astigmatism. The AcrySof® Toric Lens Implant is available up to a T9 and capable of correcting considerably greater amounts of astigmatism than the T6, so one would need to know where the residual astigmatism is coming from. Then, you need to discuss the options for correcting the astigmatism with your Cataract Surgeon which might include eyeglasses, corneal laser eye surgery such as PRK or perhaps Limbal Relaxing Incisions. Under certain circumstances one could consider a Lens Implant exchange but this poses significantly greater risk.

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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