%lost radio-resistant cells in retina
Retinal pigment epithelium
Ganglion cell layer
Rods and cones
Bipolar cells
Ans. b. Ganglion cell layer (Ref Radiation Retinopatliv. ,(1991) 5. 239-251)Ganglion cells are an example of highly specialized cells that have undergone extensive maturation, are the most radioresistant cells in the retina.