1. Blankenship, G. W., and Machemer, R.: Pars plana vitrectomy for diabetic retinopathy. A report of cases with five-year follow-up analysis. Presented at the 1977 Annual Meeting of the American Academy of Ophthalmology, Dallas, Texas, Oct. 6, 1977.
2. Four hundred consecutive pars plana vitrectomies with the vitrophage;Peyman;Arch. Ophthalmol.,1978
3. Vitrectomy. A Pars Plana Approach;Machemer,1975
4. Removal of the lens during vitrectomy via the pars plana;Lewis,1976
5. Pars plana vitrectomy;Ryan,1977