Ophthalmic pre-inked marking pad.

Various markers that facilitate incision and suture placement are available. The majority are used in conjunction with a surgical marking pen or ink. This report describes a new, disposable pre-inked marking pad which is conveniently packaged, easy to use, and compatible with most markers.

A test for crystalline lens biocompatibility.

The current use of monkeys for testing intraocular fluids and viscoelastic materials is being questioned because of the decreasing availability and increasing cost of these scarce animals. The rabbit is an inexpensive, readily available, and convenient animal which might provide an alternative model for this purpose. In this study we have outlined the lens changes (clefts or vacuoles) that are observed in the New Zealand white rabbit as a result of toxicity to intraocular test materials.

Irrigation, aspiration, and polishing cannula.

Aspiration of the lens cortex and capsule polishing are two important aspects of modern extracapsular cataract surgery. In this report we describe simple but useful modifications to the widely used Simcoe irrigation/aspiration cannula. The modifications consist of enlarging the aspiration port diameter from 0.

A new ophthalmic microtrephine.

We present a new instrument designed to facilitate the microtrephination of tissues required in various ophthalmic procedures. This microtrephine is a 21-gauge stainless steel tube, 0.81 mm in diameter and 16 mm long, with a sharpened cutting end and a plastic finger-grip area to facilitate micro-rotation.

Eye banking: the Minnesota experience.

We present a brief report on the activities of the Minnesota Lions Eye Bank. This eye bank receives and supplies tissue to several midwestern states. In addition, it plays a vital role in providing tissue for research and training at the University of Minnesota.