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Decreasing rate of capsule complications in cataract surgery Eight-year study of incidence, risk factors, and data validity by the Swedish National Cataract Register
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Ophthalmology.
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2011 (English)In: Journal of cataract and refractive surgery, ISSN 0886-3350, E-ISSN 1873-4502, Vol. 37, no 10, 1762-1767 p.Article in journal (Refereed) Published
Abstract [en]

Purpose: To define the incidence of capsule complication and its risk factors in Sweden over an 8-year period.

Setting: Fifty-two ophthalmic surgery units in Sweden.

Design: Database study.

Methods: Data were collected prospectively in the Swedish National Cataract Register (NCR) from 2002 through 2009. The NCR contains 97.3% of the total number of cataract extractions in Sweden over the 8-year study period. One mandatory variable in the register is capsule complications during surgery. As a means to validate the accuracy of register data on capsule complications, a randomly selected sample of 2400 registrations was compared with corresponding medical records.

Results: The analyses were based on 602 553 cataract extractions reported to the NCR. A capsule complication was reported in 12 574 cataract extractions, corresponding to a frequency of 2.09%. The incidence of this complication consistently decreased each year from 2002 to 2006, after which it stabilized. Poor corrected distance visual acuity in the surgical eye (≤ 0.1), the occurrence ofglaucoma, diabetic retinopathy, and age were among the parameters significantly related to a capsule complication. Some of these parameters also decreased over time. However, even after adjusting for this, there was an obvious decrease in capsule complications over time. The validity test showed a certain underreporting of capsule complications to the registry, but it was not significant and did not change over time.

Conclusion: The incidence of capsule complications decreased over time. This may be partly the result of fewer risk factors and of better surgical quality.

Financial Disclosure: No author has a financial or proprietary interest in any material or method mentioned.

Place, publisher, year, edition, pages
Fairfax,Va.: American Society of Cataract and Refractive Surgery , 2011. Vol. 37, no 10, 1762-1767 p.
Keyword [en]
intraoperative complications, term outcomes, rupture, phacoemulsification, eyes
National Category
URN: urn:nbn:se:umu:diva-49584DOI: 10.1016/j.jcrs.2011.05.022ISI: 000295660000006OAI: diva2:457530
Available from: 2011-11-18 Created: 2011-11-14 Last updated: 2011-11-18Bibliographically approved

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