Corneal endothelial cell density after ruthenium plaque radiation therapy for iris melanoma patients

increase in the RA and CCS but not with a decrease in the MRS. Rubin & Legge (1989) compared the reading speed between individuals with low vision and normal vision and reported that a higher degree of contrast was necessary to obtain a given MRS for individuals with low vision than in those with normal vision. In our CSC patients, the MRS was reduced when reading lower contrast characters compared to the healthy fellow eye although their conventional visual acuities were not different. Because CSC usually develops in youngand middle-age individuals when most are actively working, an impairment of the reading performance can have considerable impact on their daily life. This effect must be considered in considering the timing of any treatments. In conclusion, the reading performance may reflect patient’s complaint of visual disturbances in daily life.