SEARCH Articles Figures Tables A Light micrograph of normal monkey retina and choroid six weeks after PDT. The inner segments appear normal, but the outer segments are shortened and distorted. The RPE appears single-layered and hypopigmented. There are pigment-layered cells overlying the RPE. The choriocapillaris and choroid are patent. Bar 50 pm. . Bar 5 pm. Abbreviations [Publishers Imprint]