Vitrectomy methods in anterior segment surgery.

We have used vitrectomy instrumentation and techniques to treat a variety of conditions affecting the anterior segment, including: 1) an occluded or inadequate pupillary space, 2) complications of vitreous in the anterior chamber, 3) epithelial ingrowth, 4) complicated lens surgery, and 5) total hyphema. The vitrectomy methods provided controlled excision of intraocular tissues under optimum visualization using a closed-eye system with normal intraocular pressure and the ability to use techniques such as intraocular diathermy. Our experience has been favorable in this series of 117 cases. Of these, 104 cases (89%) were anatomically successful, 70 eyes (60%) had a significant postoperative improvement in vision. The detailed results of vitrectomy surgery for anterior segment disorders are presented for each indication.