Extracapsular cataract extraction with a posterior chamber intraocular lens-technique and results.
The author's preferred technique for extracapsular cataract extraction with insertion of a posterior chamber intraocular lens implant is described. Although automated devices are not available and are unattractive to many ophthalmologists, the author finds such equipment provides the safest means of making the conversion from intracapsular to extracapsular cataract extraction. In the planned extracapsular cataract extraction, a "beer can" anterior capsulotomy is performed and the nucleus is removed as described. The residual lens cortical material is aspirated using the Cavitron machine. The Cavitron machine is also used for phacoemulsification which is performed in the posterior chamber. A Shearing type posterior chamber lens is used when indicated. A primary posterior capsulotomy is performed routinely. An analysis of the first 800 such procedures is made with each case being examined 11-14 months postoperatively. Compared to intracapsular cataract extraction with an intraocular lens, the results are favourable, especially regarding the rate of cystoid macular edema, retinal detachment, and corneal edema.
D000368:Aged; D002387:Cataract Extraction / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D007910:Lenses, Intraocular; D008875:Middle Aged; D011183:Postoperative Complications / Q000453:epidemiology; D014792:Visual Acuity