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Study shows patient satisfaction with LASIK for anisometropia

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THOROFARE, N.J. — LASIK for anisometropia resulted in good patient satisfaction due to reduction of the difference in refractive power between the two eyes of patients, according to Haili Li, MD, PhD, and Guy Chan, MD, FACS. They report the findings of their study of LASIK for anisometropia in the October 1, 2001, issue of Ocular Surgery News.

"LASIK for anisometropia can be recommended for 3 D to 14.5 D of myopic anisometropia," according to the surgeons. "Even though there is a small amount of residual postop myopia in some patients, decreasing the difference in refractive error between the two eyes allowed the patients to wear spectacles more comfortably and improved the visual acuity in the operated eye."

Drs. Li and Chan treated 25 anisometropic patients with LASIK between July 1996 and February 2000 at the Refractive Surgery Center of the Hong Kong Sanatorium and Hospital. There were no intraoperative complications. Patients were followed for 3 months to 36 months.

Patients in the study had myopic anisometropia with or without astigmatism and amblyopia. LASIK was used by the surgeons to decrease anisometropia and to improve the best corrected visual acuity of amblyopic patients.

A main criterion for determining success in LASIK for anisometropia is decreasing the refractive difference between the two eyes. In this study, the mean preop spherical and cylindrical refraction differences between the two eyes was 7.47 D and 1.21 D. These values were reduced to 1.49 D and 0.65 D postop, the surgeons said.