An unusual spot

The retinal pigment epithelium (RPE) is the pigmented cell layer just outside the neurosensory retina that nourishes retinal visual cells, and is attached to the choroid beneath and the retina above.   The 7 functions of the RPE are:    1.   light absorption essential   2.   epithelial transport   3.   spatial buffering of ions.   4.  visual cycle.  Continue reading “An unusual spot”

Night Blindness

This patient let me know that she could not drive at night.   My dilated eye examination showed evidence of Retinitis pigmentosa (RP).   In RP, there is progressive degeneration in the photoreceptor cells (rods and cones) of the retina.   Other forms of RP and related diseases include Usher syndrome, Leber’s congenital amaurosis, rod-cone disease, Bardet-Biedl syndrome,Continue reading “Night Blindness”