title: Effectivity of laser ridge intraocular lenses.
abstract: Two hundred fifty intraocular lenses with varying sizes of laser ridges were implanted following extracapsular cataract surgery to determine the effectivity of the laser ridge in creating a space between the intraocular lens and the posterior capsule. Six weeks post-operatively, the distance between the intraocular lens and the posterior capsule was judged as adequate in 92% of cases with a .35 mm ridge, 88% cases with a .25 mm ridge, and 80% of those with a .15 mm ridge. A group of non-angulated, non-ridged lenses placed out of the capsular bag had an adequate space in 82% of cases, and a group of non-angulated, non-ridged lenses placed in the capsular bag had only 44% adequate spaces. Intraocular lenses with laser ridges should be used to enhance the space between the intraocular lens and the posterior capsule, thus increasing the safety of postoperative Nd:YAG laser posterior capsulotomy.
mesh_terms: D005069:Evaluation Studies as Topic; D006801:Humans; D053685:Laser Therapy; D007910:Lenses, Intraocular