GLARE DISABILITY AND CONTRAST SENSITIVITY BEFORE AND AFTER CATARACT-SURGERY

Citation
R. Superstein et al., GLARE DISABILITY AND CONTRAST SENSITIVITY BEFORE AND AFTER CATARACT-SURGERY, Journal of cataract and refractive surgery, 23(2), 1997, pp. 248-253
Citations number
27
Categorie Soggetti
Surgery,Ophthalmology
ISSN journal
08863350
Volume
23
Issue
2
Year of publication
1997
Pages
248 - 253
Database
ISI
SICI code
0886-3350(1997)23:2<248:GDACSB>2.0.ZU;2-V
Abstract
Purpose: To determine whether brightness-induced glare decreases spati al contrast sensitivity and visual acuity in preoperative cataract pat ients with functional visual complaints and to compare preoperative wi th postoperative results. Setting Sir Mortimer B. Davis Jewish General Hospital, Montreal, Quebec, Canada. Methods: Twenty patients with a v isual acuity of 20/70 or better at the time of chart selection and no other ocular pathology who were referred for cataract surgery were eva luated with the Optec 3000 vision tester to assess contrast sensitivit y and visual acuity in the presence and absence of glare, Testing was done preoperatively and 1 and 3 months postoperatively. Results: An an alysis of Variance indicated that there were statistically significant double interactions between the preoperative/postoperative and glare/ no-glare variables and between the preoperative/postoperative and spat ial frequency variables. Postoperatively, visual acuity and contrast s ensitivity improved to within normal limits. There were no statistical ly significant differences in visual acuity and spatial contrast sensi tivity between 1 and 3 months postoperatively. Conclusion: Spatial con trast sensitivity and glare testing provided objective assessment of p atients who had good visual acuity yet also had functional complaints.