Techniques of External Subretinal Fluid (SRF) Drainage in Coat's Disease

Coat's disease is a telangiectatic exudative retinopathy affecting young males. SRF drainage is done for stages 3-4 with or without adjuvant therapies. Traditionally, SRF drainage is done via transcleral route after a conjunctival peritomy. In this video we demonstrate transconjunctival techniques of SRF drainage with a 26G needle by: a) indirect ophthalmoscope guidance and b) method of active infusion. Advantages of transconjunctival SRF drainage are: 1) No chance of retinal incarceration as in cut down techniques of drainage; 2) Avoids shifting of fluid as globe is not moved and drainage is complete; 3) Posterior drainage is possible under direct visualisation; 4) No lens related complications as Anterior chamber maintainer is not used; 5) Minimally invasive as no peritomy is required.