Anterior segment applications of vitrectomy techniques.

We have used vitrectomy instrumentation and techniques to treat a variety of conditions affecting the anterior segment, including: (1) Various conditions causing an occluded or inadequate pupillary space, (2) Complications of vitreous gel in the anterior chamber, (3) Growth of epithelium into the anterior chamber, (4) Selected indications for lens surgery, (5) Flat anterior chamber, (6) Total hyphaema. The vitrectomy methods provided improved capabilities, including controlled excision of intraocular tissues under optimum visualization using a closed-eye system with normal intraocular pressure and the ability to use accessory techniques such as intraocular diathermy. Although new difficulties are introduced by reliance on complex instrumentation and possible complications from excessive traction or use of large volumes of intraocular irrigating solution, our experience in using these techniques to treat selected anterior segment conditions has been, favourable.