Postoperative aphakia in modern cataract surgery - Part 1: Analysis of incidence and risks based on 5-year data from the Swedish National Cataract Register
2004 (English)In: Journal of cataract and refractive surgery, ISSN 0886-3350, Vol. 30, no 10, 2105-2110 p.Article in journal (Refereed) Published
Purpose: To study the incidence of aphakia after cataract extraction and evaluate the relative risk for this outcome in subgroups of patients based on preoperative conditions. Setting: Sixty-two community-run or private clinics participating in the Swedish National Cataract Register. Methods: Data on cataract extractions were collected prospectively from 1997 through 2001. The set of data also covered type of surgery and type of intraocular lens (IOL), including a "no lens implanted" option. All data were stored in a database. Database calculations were made of frequencies and risk ratios of postoperative aphakia in the subgroups of patients based on preoperative conditions. Results: For the entire study period, postoperative aphakia was reported in 1410 of 287951 surgeries for which complete IOL data were available, corresponding to an overall frequency of 0.49%. The occurrence of ocular comorbidity and poor preoperative visual acuity (≤0.1) in the eye to be operated on was significantly related to postoperative aphakia for each year of the study (P<.001). Glaucoma and poor visual acuity (≤0.1) in the surgical eye meant a 12.8 higher risk for aphakia after surgery than a better visual acuity (>0.1) and no ocular comorbidity. Conclusions: This national 5-year survey showed that in routine cataract surgery performed during the study, 1 of every 200 operations ended in postoperative aphakia. Poor visual acuity (≤0.1) in the eye to be operated on combined with ocular comorbidity was the highest risk factor for postoperative aphakia. © 2004 ASCRS and ESCRS.
Place, publisher, year, edition, pages
2004. Vol. 30, no 10, 2105-2110 p.
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:liu:diva-24663DOI: 10.1016/j.jcrs.2004.01.043Local ID: 6894OAI: oai:DiVA.org:liu-24663DiVA: diva2:244985