FRHD 2110 Chapter 11: Chap 11 - Additional Definitions.docx

• School: University of Guelph
• Department: Family Relations and Human Development
• Course: FRHD 2110
• Professor: Taniesha Burkes

Document Summary

Snellen chart = used in determining visual acuity; consists of rows of letters of es arranged in different positions; each row corresponds to distance at which a normally sighted person can discriminate the letters; does not predict how accurately a child will be able to read print: visual efficiency = term used to refer to how well one uses their vision, including such things as control of eye movements, attention to visual detail, and discrimination of figure from background; believed by some to be more important than visual acuity alone in predicting a person"s ability to function visually, diabetic retinopathy = condition resulting from interference with blood supply to retina; fastest growing cause of blindness, retinopathy of prematurity (rop) = condition resulting in abnormal growth of blood vessels in eye; caused by factors related to premature birth, including administration of excessive concentration of oxygen at birth.