Astigmatic changes after cataract surgery with 5.1 mm and 3.5 mm sutureless incisions.

We evaluated postoperative keratometric astigmatism in 80 eyes that had phacoemulsification and intraocular lens implantation through sutureless corneal incisions. The eyes were separated into two groups based on the use of rigid ovoid or foldable silicone lenses inserted through 5.1 mm corneal lip incisions or 3.

Displacement of bag-placed hydrogel lenses into the vitreous following neodymium: YAG laser capsulotomy.

We report two cases in which hydrogel lens implants have dislocated posteriorly into the vitreous body following YAG laser capsulotomy. These lenses were placed in the bag in conjunction with a capsulorhexis. A comparison with our results using silicone and poly(methyl methacrylate) implants indicates that this phenomenon has occurred only with hydrogel implants.

New spatula to facilitate bimanual phacoemulsification.

In recent years bimanual phacoemulsification has become an increasingly popular method of cataract extraction. We describe a new spatula designed to manipulate and protect the posterior capsule safely during phacoemulsification. In addition, this spatula can be used to facilitate irrigation/aspiration.

Clinical endothelial cell loss following phacoemulsification and silicone or polymethylmethacrylate lens implantation.

This study is a comparison of endothelial cell loss seen by two surgeons using the same surgical technique (posterior chamber phacoemulsification) with posterior chamber implants of two different materials (silicone and polymethylmethacrylate [PMMA]). One hundred four silicone lenses were implanted following phacoemulsification and compared with 160 PMMA lenses implanted during the same period. A significant feature of these procedures was the incidence of endothelial cell loss of greater than 1,200 cells/mm2.

Initial clinical studies with silicone intraocular implants.

Initial clinical studies with 117 silicone implants are presented. Techniques of implantation including flat insertion, bar-style folder, and syringe-style inserter are discussed. Visual results were compared with results after polymethylmethacrylate (PMMA) lens implantation and were equal if not better.

Clinical experience with Nd:YAG laser vitreolysis in the anterior segment.

The clinical experience of two surgeons performing Nd:YAG laser anterior vitreolysis to disrupt vitreous strands adherent to surgical wounds with and without pupillary distortions and/or cystoid macular edema is presented. We describe our technique. The results indicate that vision improved in 50% of the cases, with visual acuity improving from 20/40 or better in three of 20 eyes preoperatively to 11 of 20 eyes postoperatively.

Endothelial cell loss in four types of intraocular lens implant procedures.

Corneal endothelial cell loss is compared in four types of cataract procedures with intraocular lens implants performed by the authors. A total of 110 intracapsular cataract extractions, 182 extracapsular cataract extractions and 107 phacoemulsifications, divided into 47 anterior chamber emulsifications and 60 posterior chamber emulsifications (all with intraocular lens implants) are compared. A significant feature of these procedures is the incidence of endothelial cell loss greater than 1,200 cells/mm2.

Comparison of techniques and clinical results of YAG laser capsulectomy with two Q-switched units.

The clinical experience of two surgeons performing posterior capsulectomies with two fundamental, Q-switched YAG lasers (LASAG and AMO YAG 100) is presented. Results with both machines indicate 100% capsulectomy success with less than 100% visual improvement. Complications were minimal and usually transient.

The ultrastructure of an IOL "cocoon membrane".

A white cocoon membrane emanating from an inferotemporal focus in the iris stroma totally ensheathed a Binkhorst four-loop iris plane lens 18 months after implantation. The membrane was removed and studied by scanning (SEM) and transmission (TEM) electron microscopy. By SEM the external surface of the membrane was characterized by a fibrillar meshwork, with only an occasional scattered spindle-shaped or rounded inflammatory cell occupying the surface.