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Purpose: To evaluate common indications and anatomical outcomes of PPV for posterior segment ocular diseases in patients presenting at private retina clinic in Lahore Study design: Cross sectional survey Methods and materials: Over the period of three years, from 1st April 2017 to 3oth April 2020, all patients fulfilling inclusion criterion, were included in study after approval from hospital ethical committee. After taking history and detailed ocular examination, diagnosis was confirmed by B scan or OCT, Hepatitis B &amp; C screening done. The patient age, gender, laterality of eye, lens status, macular status, type of retinal pathology, type of anesthesia, procedure done and type of vitreous tamponade if used were noted. All procedures were performed by a single surgical team and patients were followed for six months for anatomical success or any complication.  Data was analyzed by SPSS 25. Results: Out of 266 total patients, 168 (63.2%) were males and 98 (36.8%) were females. Right eye was involved in 125 (47%) and left in 141 (53%). Age range was from 2 years to 83years, mean age for males was 47.30, for females 48.07 years, median age was 50 years, mean age for GA was 30.62 years and 51.71 for LA patients. The highest incidences of posterior segment ocular problems were observed in patients with age range 51 to 60 years. The commonest indication for posterior segment surgery were RRD seen in 107 (40.23%), ROSO in 51 (19.17%) and vitreous hemorrhage 33 (12.41%). Endophthalmitis was indication in 20 (7.52%), dropped nucleus in 11 (4.13%), Macular hole in 7 (2.63%) and ERM in 3 (1.13%). Asteroid hyalosis, intraocular IOFB and diagnostic vitrectomy were least common indication, each seen in 1 (0.5%) patient. Silicon oil was most commonly used Endo tamponade used in 138 (51.88%) patients. All patients were followed for 6 months with vision and retinal status. All patients who underwent pars plana vitrectomy surgery were stable with anatomical success rate till 6 months postoperatively except 10 (3.76%) who required re do operation for retinal detachment or some other complications. Conclusion: Current practice in ophthalmology shows increased frequencies of internal approach (PPV) for vitreoretinal diseases rather external approach (SB). Silicon oil was most common internal tamponade used. Diabetic retinopathy was important cause of vitreous hemorrhage and TRD. Patients should be educated regarding regular fundoscopy and good systemic control of diabetes. Higher incidence of retinal detachment among all age groups needs awareness and education about its warning ocular symptoms. Key words: PPV (Pars plana vitrectomy), RRD (Rhegmatogenous retinal detachment), SB (Scleral buckling), TRD (Tractional retinal detachment), ROSO (removal of silicon oil), GA (general anesthesia), LA (local anesthesia)

The Common Indications of Pars plana vitrectomy (PPV) for posterior Segment Ocular diseases in patients from a Private Retina Clinic