Vitrectomy through a corneal incision of 270° to 300° presents a great hazard to the cornea which may develop endothelial decompensation followed by corneal edema and opacity. These complications may result from corneal dehydration, mechanical trauma, nutritional deprivation, or a combination of these factors. A chamber-like corneal protector made of latex, which allows continuous infusion of tissue culture medium 199, has proved useful in monkey eyes to prevent corneal damage during vitreous and retinal surgery performed through a large corneal incision.
Ashrafzadeh MT, Schepens CL, Lee P. Vitreous SurgeryVII. Corneal Protector for Subtotal Vitrectomy. Arch Ophthalmol. 1973;89(2):138–142. doi:10.1001/archopht.1973.01000040140018
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