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Article
August 1974

Experimental Vitreous Surgery in MonkeysIX. Pars Plana Approach in Open-Sky Techinque

Author Affiliations

Boston
From the Department of Retina Research, Retina Foundation, Boston. Dr. Lee is now with the Department of Ophthalmology, Albany Medical College, Albany, NY. Dr. Hamada is now with the Department of Ophthalmology, Kyoto University Medical School, Kyoto, Japan.

Arch Ophthalmol. 1974;92(2):139-141. doi:10.1001/archopht.1974.01010010145013
Abstract

A procedure is described for open-sky vitrectomy through a 170°pars plana incision. This approach permits direct visualization of the vitreous cavity and about 75% of the total fundus. It allows a more direct access to the vitreous cavity, greater surgical precision, and affords better protection to the anterior segment than the transcorneal approach. Experimental results in monkey eyes indicate that open-sky surgery through such a large incision is clinically feasible. It may be considered as an alternative procedure when extensive removal of diseased vitreous is indicated, either independently or as an adjunct to retinal surgery.

References
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Kasner D, et al:  Surgical treatment of amyloidosis of the vitreous . Trans Am Acad Ophthalmol Otolaryngol 72:410-418, 1968.
2.
Machemer R, Parel JM, Buettner H:  A new concept for vitreous surgery: I. Instrumentation . Am J Ophthalmol 73:1-7, 1972.
3.
Machemer R, Parel JM, Norton EWD:  Vitrectomy: A pars plana approach: Technical improvements and further results . Trans Am Acad Ophthalmol Otolaryngol 76:462-466, 1972.
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