Comparison of Scheimpflug Photos of the Crystalline Lens in Patients Who Have Undergone Vitrectomy Surgery and Controls
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Progression of nuclear sclerotic cataract after pars plana vitrectomy has been recognized for many years The mechanism for the rapid progression of nuclear sclerotic cataract remains unclear. The objective of this trial is to evaluate and compare the level and progression of cataract advancement in controls versus eyes that have undergone 20-gauge pars plana vitrectomy and 25-gauge pars plana vitrectomy.
Approximately 105 patients will be recruited to obtain 35 control eyes that have not had pars plana vitrectomy and 35 eyes who will have undergone 20-gauge pars plana vitrectomy and 35 eyes will have undergone 25-gauge pars plana vitrectomy. Scheimpflug crystalline lens photographs will be taken for evaluation of level and progression of cataract development.
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Ages Eligible for Study:
18 Years and older (Adult, Older Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
patients undergoing vitrectony surgery and controls
phakic eyes of patients that are scheduled to undergo pars plana vitrectomy,
controls will be phakic eyes of patients that have not undergone andy kind of intraocular surgery,
age 18 and older
any eye that is pseudophakic,
has had previous vitreoretinal surgery,
has had previous intravitreal injection,
previous intraocular inflammatory condition such as uveitis,