Precrystalline posterior chamber intraocular lens for surgical correction of severe myopia

To report early experience with a posterior chamber precrystalline intraocular lens designed for correction of severe myopia from -10 to -30 diopters. This intraocular lens respects the transparent crystalline lens and does not interfere with accommodation.

The concave-convex methylmethacrylate lens, with flexible haptics that are supported in the sulcus, is placed behind the iris, in front of the lens, and centered with the pupil.

From July 1995 to November 1998, 149 precrystalline lenses have been inserted with few, generally reversible complications, which are now largely prevented by adequate modification of the intraocular lens. Correction has been satisfactory and stable.

Although follow-up is relatively short, precrystalline lens placement may be considered an important contribution to the surgical management of severe myopia to improve the patient's vision and, consequently, quality of life.