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We thank Dr Fraunfelder for his comments and discussion of cryotherapy as an adjunctive treatment for pterygia. Based on the established requirements of an Ophthalmic Technology Assessment Committee (OTAC) publication, we were unable to include the topic of cryotherapy within our OTAC evidence-based review paper, “Options and Adjuvants in Surgery for Pterygium,” owing to the lack of prospective, randomized controlled studies (level 1) involving this technique. The American Academy of Ophthalmology's OTAC is charged with scientifically evaluating new and existing ophthalmic tests, technology and procedures to provide evidence-based information to ophthalmologists, the (Read more...)

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