A pocket slitlamp

Abstract

Abstract Purpose I here describe a prototype pocket slitlamp for students and non‐specialists. It might help bridge the growing gap between ophthalmology (and optometry) and other specialties. Methods MATERIAL Pocket microscopes, condensing lenses, modified pentorch and a platform. PILOT TESTS Evaluation and photographs of optical sections of 1)Anterior segment and lens of the eyes of the author and four volunteers. 2)Wrist watch crystals. Is a wristwatch a suitable model eye? Results The prototype weighs 100g, costs EUR35 (£30)and can be carried in a pocket. The magnification was 0‐30X, and the slits of light were 0.5‐2mm wide. The digital camera cost EUR85 (£79.99). PILOT TEST RESULTS 1) Clinically adequate optical sections of the cornea, anterior chamber and lens were seen and photographed. 2) The outer and inner surfaces of the wristwatch crystal, watch face and the space in between were clearly seen. They simulated the corneal epithelium and endothelium, the iris and the anterior chamber. LIMITATIONS The view is monocular, there is no zoom and the light is less intense than the maximum of a conventional slitlamp. Conclusion When developed this miniature slitlamp could help both in the instruction of students and in the clinical practice of non‐specialists. Students could practice on each other and on wristwatches, which make good model eyes. Commercial interest