<prompt> Snow-banking is seen inPars planitisEndophthalmitisEales diseaseCoats disease  <response>: Ans. a Pars planitis Ref Ophthalmology by Basak 4th213; Khurana ophthalmology 4th160; 233PARS PLANITIS PP Subset of idiopathic Intermediate Uveitis in which there is snowbanking or snowball formation. A chronic, bilateral, intermediate uveitis that may have a mild anterior reaction Etiology unknown Virus? Autoimmune reaction to the vitreous. Occurs in a healthy population, although MS has been associated with 8-16 of cases.Cf: Onset usually late teens to early adulthood mean age 26 Symptoms include cloudy vision and floaters; minimal discomfort Typical signs are mild AC reaction, vitreous cells, and snowbanking inferiorly Other findings include:- POAG 15; Plebitis 17; CME 68; ERM 48, and Peripapillary edema 17.Course Occurs in both males and females No environmental or hereditary factors known Seems to be most common in Caucasians Chronic and recurrent in natureAncillary tests Dx by full examination with scleral depression IVFA andor OCT to confirm retinal neovascularization and CME Exclude treatable diseases such as: Syphilis, Sarcoid, Lyme Disease or TB.Rx: Treat if VA is 2040 with CME- Topical NSAIDs ie, ketorolac, nepafenac, Topical steroids, SC and IV injection of steroids- Acetazolamide sequals, Oral steroids, Vitrectomy CAT extraction required in -20 of patients. 