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Computerized method to measure glare and contrast sensitivity in cataract patients
Mälardalen University, School of Health, Care and Social Welfare. Karolinska Institutet, Stockholm, Sweden.ORCID iD: 0000-0002-5976-5193
1999 (English)In: Journal of cataract and refractive surgery, ISSN 0886-3350, E-ISSN 1873-4502, Vol. 25, no 3, 411-415 p.Article in journal (Refereed) Published
Abstract [en]

Purpose: To evaluate computerized methods for measuring glare sensitivity and visual acuity at 3 contrast levels in cataract patients. Setting: St. Erik's Eye Hospital, Stockholm, Sweden. Methods: In a prospective study, 25 consecutive cataract patients meeting the inclusion criteria were examined before and 12 weeks after cataract surgery. Measured were glare sensitivity and visual acuity at 3 contrast levels using the Ophthimus Y-VA Contrast Sensitivity lest and Glare Test. Results: Preoperatively, ail patients had impaired values compared with those in a group of age-matched normal volunteers (control group). Postoperatively, median values were similar to those in the age-matched control group in all parameters except glare sensitivity, which was significantly higher in the pseudophakic group (P = .03). Correlation coefficients between preoperative visual acuity and contrast sensitivity at 90%, 25%, and 10% were 0.50 (P = .01), 0.53 (P = .006), and 0.45 (P = .02), respectively, and between preoperative visual acuity and preoperative glare difference, 0.45 (P = .02). A significant correlation was found between age and visual acuity in the control group at all contrast levels: 90% (r = 0.61, P = .0018 ), 25% (r = 0.52, P = .01), and 10% (r = 0.42, P = .04). Median differences between Y-VA examinations (repeatability) were 0 LogMAR except between examinations 1 and 2 at the 25% contrast level, where it was 0.3 LogMAR. Conclusion: The Ophthimus Y-VA Test and Glare Test were useful in the preoperative evaluation of patients with cataract and mild to moderate visual impairment.

Place, publisher, year, edition, pages
1999. Vol. 25, no 3, 411-415 p.
National Category
Ophthalmology
Identifiers
URN: urn:nbn:se:mdh:diva-12046DOI: 10.1016/S0886-3350(99)80091-1ISI: 000078960500026Scopus ID: 2-s2.0-0032969918OAI: oai:DiVA.org:mdh-12046DiVA: diva2:407529
Available from: 2011-03-30 Created: 2011-03-30 Last updated: 2016-05-11Bibliographically approved

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CiteExportLink to record
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