Abstract | OBJECTIVE: DESIGN: Comparative autopsy tissue analysis. PARTICIPANTS: A total of 5416 globes with posterior chamber intraocular lens (PC-IOLs) obtained postmortem received from Lions Eye Banks between 1988 and 2000. METHODS: MAIN OUTCOME MEASURES: RESULTS: Relatively high Nd:YAG laser posterior capsulotomy rates ranging from 20.3% to 33.4% were noted with four relatively older designs (high incidence of implantation between 1988 and the early 1990s). Four modern foldable IOLs manufactured from silicone and acrylic materials had significantly lower Nd:YAG laser posterior capsulotomy rates ranging from 0.9% (Alcon Acrysof) to 17.1%. The difference in Nd:YAG rates among the eight IOL designs was found to be significant (P < 0.0001, chi-square test). Comparing foldable versus rigid designs, the foldable IOLs were associated with a much lower Nd:YAG laser posterior capsulotomy rate (14.1% vs. 31.1%). CONCLUSIONS: By use of the six factors regarding surgical technique and IOL choice described in this article, we strongly believe that the overall incidence of PCO and hence the incidence of Nd:YAG laser posterior capsulotomy is now rapidly decreasing from rates as high as 50% in the 1980s to early 1990s. Surgical tools and IOLs are now available to bring these rates down to single digits. Careful application and use of these tools by surgeons can genuinely lead in the direction of virtual eradication of secondary cataract, the second most common cause of visual loss worldwide.
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Authors | D J Apple, Q Peng, N Visessook, L Werner, S K Pandey, M Escobar-Gomez, J Ram, G U Auffarth |
Journal | Ophthalmology
(Ophthalmology)
Vol. 108
Issue 3
Pg. 505-18
(Mar 2001)
ISSN: 0161-6420 [Print] United States |
PMID | 11237905
(Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)
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Topics |
- Cataract
(etiology, prevention & control)
- Humans
- Laser Therapy
(statistics & numerical data)
- Lens Capsule, Crystalline
(pathology, surgery)
- Lens Implantation, Intraocular
(statistics & numerical data)
- Lenses, Intraocular
- Prosthesis Design
- Pseudophakia
(complications, surgery)
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