TY - JOUR
AU - HAEGERSTROM-PORTNOY, GUNILLA
AB - 1040-5488/07/8406-0471/0 VOL. 84, NO. 6, PP. 471–480 OPTOMETRY AND VISION SCIENCE Copyright © 2007 American Academy of Optometry ORIGINAL ARTICLE Longitudinal Quantitative Assessment of Vision Function in Children with Cortical Visual Impairment TONYA WATSON, OD, DEBORAH OREL-BIXLER, PhD, OD, FAAO, and GUNILLA HAEGERSTROM-PORTNOY, OD, PhD, FAAO School of Optometry, University of California, Berkeley, California ABSTRACT Purpose. Cortical visual impairment (CVI) is bilateral visual impairment caused by damage to the posterior visual pathway, the visual cortex, or both. Current literature reports great variability in the prognosis of CVI. The purpose of this study was to evaluate change in vision function in children with CVI over time using a quantitative assessment method. Methods. The visual acuity and contrast sensitivity of children with CVI were retrospectively assessed using the sweep visual evoked potential (VEP). Thirty-nine children participated in the visual acuity assessment and 34 of the 39 children participated in the contrast threshold assessment. At the time of the first VEP, the children ranged in age from 1 to 16 years (mean: 5.0 years). The time between measures ranged from 0.6 to 13.7 years (mean: 6.5 years). Results. Forty-nine percent of the children studied showed significant improvement of visual acuity. The average 
TI - Longitudinal Quantitative Assessment of Vision Function in Children with Cortical Visual Impairment
JF - Optometry and Vision Science
DO - 10.1097/OPX.0b013e31806dba5f
DA - 2007-06-01
UR - https://www.deepdyve.com/lp/wolters-kluwer-health/longitudinal-quantitative-assessment-of-vision-function-in-children-tZZ0xfT9RH
SP - 471
EP - 480
VL - 84
IS - 6
DP - DeepDyve
ER -