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Cataract and high-pass resolution perimetry.
Stockholm Univ.ORCID iD: 0000-0002-5976-5193
1997 (English)In: Acta Ophthalmologica Scandinavica, ISSN 1395-3907, E-ISSN 1600-0420, Vol. 75, no 2, 174-7 p.Article in journal (Refereed) Published
Abstract [en]

The present study describes the influence of cataract on high-pass resolution perimetry results. Twenty-five otherwise healthy patients were examined before and after cataract surgery. Their preoperative visual acuities ranged from 0.1 to 0.8 and their mean resolution thresholds from 3.9 to 12.3 dB. Both elevated mean thresholds and local visual fields defects were observed. In patients with low-grade cataract, i.e. preoperative visual acuity 0.3 to 0.65, the mean improvement in perimetric results after operation was approximately 1 dB. In patients with higher degrees of lens opacity, visual acuity 0.1 to 0.25, the difference between pre- and postoperative perimetry results showed a wide range, 1.4-6.2 dB. In conclusion, cataract induced different types of visual field defects. The general threshold increase due to low-grade cataract (VA > or = 0.3) could be compensated for by subtracting 1 dB from the measured value.

Place, publisher, year, edition, pages
1997. Vol. 75, no 2, 174-7 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:mdh:diva-10579DOI: 10.1111/j.1600-0420.1997.tb00118.xPubMedID: 9197567OAI: oai:DiVA.org:mdh-10579DiVA: diva2:360195
Available from: 2010-11-02 Created: 2010-10-27 Last updated: 2013-12-19Bibliographically approved

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