Pars Plana Vitrecromy in Patients Aged 85 Years and Above

We reviewed the records of 120 consecutive patients (male and female), aged 85 years and above, who underwent pars plana vitrecromy in the Tel Aviv Medical Center during the years 01/01/2006 - 31/12/2013, and were followed by physicians in the ophthalmology department in the center until December 2015. We will be measuring visual acuity, intra-ocular pressure, demographics (age, gender), indication for surgery, ocular co-morbidities, surgical parameters (time of surgery, type of anesthesia - general or local, type of suture), and intraoperative and postoperative complications.

Primary outcome - visual acuity will be measured at base line, after 1 week, 1 month, 3 months, 6 months / last follow up (until December 2015). visual acuity will be determined by a standardized chart test (Snellen chart). For statistical analysis, all VA values were converted to logMAR scale. According to Holladay and the University of Freiburg study group results, blindness was set at 0.00125/2.9 (decimal/logMAR), light perception at 0.0025/2.6, hand movements at 0.005/2.3 and counting fingers at 0.014/1.85. Data will be analyzed using SPSS software. A p-value of 0.05 will be considered statistically significant and t-tests analysis will be used to compare between means.

Secondary outcomes - demographics, Indication for surgery, ocular co morbidities will be measured at baseline. Surgical parameters and intraoperative complications will be measured at 1 week. Postoperative complications will be measured during follow up after 1 week, 1 month, 3 months, 6 months / last follow up (until December 2015).

Complications will be measured by examination of intraocular pressure, slit-lamp and fundus (Ophthalmoscopic Exam).