Blood retinal barrier is formed by: (A) Muller cells, (B) Amacrine cells, (C) Horizontal cells, (D) Outer Plexiform layer
Answer is D. Ans. (d) Outer Plexiform layerRef: Retina by Ryan 6/e, p. 657; Khuranas Anatomy 2/e, p. 151Blood retinal barrier at 2 levels* Inner - Non-fenestrated capillaries of the retinal vessels (superficial capillary network in NFL and deep capillary network between INL and OPL)* Outer - tight junctions of RPE