Posterior Vitreous Detachment Clinical Trial
Official title:
A Prospective Randomized Controlled Trial Evaluating the Safety and Efficacy of YAG Vitreolysis Versus Sham for Symptomatic Weiss Ring Due to Posterior Vitreous Detachment
This is a single-center, prospective randomized controlled trial evaluating the safety and efficacy of YAG vitreolysis versus sham for symptomatic Weiss ring due to posterior vitreous detachment.
52 subjects will be enrolled in the trial and randomized in a 2:1 ratio to receive either YAG laser vitreolysis or sham laser for symptomatic Weiss ring due to posterior vitreous detachment. Subjects will follow up at one week, one month, three months, and six months after the procedure. Assessments will include a questionnaire regarding duration of floater symptoms prior to presentation, severity of floater symptoms, number of floaters, and activity most inconvenienced by presence of floaters; Medical, ocular history and demographics collected; ETDRS and Snellen visual acuity; Optos color photography; Heidelberg Spectralis Optical Coherence Tomography (OCT) and infrared photo; B scan ultrasound of Weiss ring with caliper measurement of nearest distance between Weiss ring and retina, Weiss ring and posterior lens capsule (only in phakic eyes); Slit lamp and indirect ophthalmoscopy with scleral depression of study eye; Applanation tonometry; Visual Functioning Questionnaire-25 (VFQ 25). Qualitative change in Optos photography will evaluated by a masked physician. ;
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject), Primary Purpose: Treatment
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