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Neodymium:YAG capsulotomy rates following phacoemulsification with implantation of PMMA, silicone, and acrylic intraocular lenses.
Ophthalmic Surg Lasers. 2001 Sep-Oct; 32(5):375-82.OS

Abstract

BACKGROUND AND OBJECTIVE

Posterior capsular opacification (PCO) is the most common visually disabling sequela of modern cataract surgery. Methods of reducing its incidence include the development of newer surgical techniques and intraocular lens (IOL) materials and designs. The aim of this study was to compare the incidence and time interval of development of PCO, and the requirement of laser capsulotomy in patients implanted with a polymethylmethacrylate (PMMA), silicone, or acrylic IOL.

PATIENTS AND METHODS

The data of 340 consecutive patients who underwent phacoemulsification and implantation ofa PMMA, silicone, or acrylic intraocular lens were analyzed. The aim of this study was to compare the incidence and time interval of development of PCO, and the requirement of laser capsulotomy in patients implanted with a PMMA, silicone, or acrylic IOL.

RESULTS

The incidence of PCO was found to be significantly less in the acrylic group (6.5% as compared to 21.74% and 26.6% in the PMMA and silicone groups, respectively; P = 0.01297 and 0.0039). Most patients (65%) exhibiting PCO in the PMMA group developed it within the first six months. In the silicone group, development of PCO was delayed. In 60% of patients, it appeared 18 months after surgery. Neodymium:YAG capsulotomy was required in 45% and 60% of patients developing PCO in the PMMA and silicone groups, respectively, while it was required in only 1 of the 4 patients developing PCO in the acrylic group.

CONCLUSION

This study indicates that implantation of an acrylic IOL helps reduce the incidence of PCO as well as the need for Nd:YAG capsulotomy. PMMA IOLs require Nd:YAG capsulotomy earlier in the postoperative period as compared to silicone IOLs.

Authors+Show Affiliations

Department of Ophthalmology, Postgraduate Institute of Medical Education and Research, Chandigarh, India. jagatram@cha.i91.net.inNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

11563781

Citation

Ram, J, et al. "Neodymium:YAG Capsulotomy Rates Following Phacoemulsification With Implantation of PMMA, Silicone, and Acrylic Intraocular Lenses." Ophthalmic Surgery and Lasers, vol. 32, no. 5, 2001, pp. 375-82.
Ram J, Kaushik S, Brar GS, et al. Neodymium:YAG capsulotomy rates following phacoemulsification with implantation of PMMA, silicone, and acrylic intraocular lenses. Ophthalmic Surg Lasers. 2001;32(5):375-82.
Ram, J., Kaushik, S., Brar, G. S., & Gupta, A. (2001). Neodymium:YAG capsulotomy rates following phacoemulsification with implantation of PMMA, silicone, and acrylic intraocular lenses. Ophthalmic Surgery and Lasers, 32(5), 375-82.
Ram J, et al. Neodymium:YAG Capsulotomy Rates Following Phacoemulsification With Implantation of PMMA, Silicone, and Acrylic Intraocular Lenses. Ophthalmic Surg Lasers. 2001 Sep-Oct;32(5):375-82. PubMed PMID: 11563781.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Neodymium:YAG capsulotomy rates following phacoemulsification with implantation of PMMA, silicone, and acrylic intraocular lenses. AU - Ram,J, AU - Kaushik,S, AU - Brar,G S, AU - Gupta,A, PY - 2001/9/21/pubmed PY - 2002/1/16/medline PY - 2001/9/21/entrez SP - 375 EP - 82 JF - Ophthalmic surgery and lasers JO - Ophthalmic Surg Lasers VL - 32 IS - 5 N2 - BACKGROUND AND OBJECTIVE: Posterior capsular opacification (PCO) is the most common visually disabling sequela of modern cataract surgery. Methods of reducing its incidence include the development of newer surgical techniques and intraocular lens (IOL) materials and designs. The aim of this study was to compare the incidence and time interval of development of PCO, and the requirement of laser capsulotomy in patients implanted with a polymethylmethacrylate (PMMA), silicone, or acrylic IOL. PATIENTS AND METHODS: The data of 340 consecutive patients who underwent phacoemulsification and implantation ofa PMMA, silicone, or acrylic intraocular lens were analyzed. The aim of this study was to compare the incidence and time interval of development of PCO, and the requirement of laser capsulotomy in patients implanted with a PMMA, silicone, or acrylic IOL. RESULTS: The incidence of PCO was found to be significantly less in the acrylic group (6.5% as compared to 21.74% and 26.6% in the PMMA and silicone groups, respectively; P = 0.01297 and 0.0039). Most patients (65%) exhibiting PCO in the PMMA group developed it within the first six months. In the silicone group, development of PCO was delayed. In 60% of patients, it appeared 18 months after surgery. Neodymium:YAG capsulotomy was required in 45% and 60% of patients developing PCO in the PMMA and silicone groups, respectively, while it was required in only 1 of the 4 patients developing PCO in the acrylic group. CONCLUSION: This study indicates that implantation of an acrylic IOL helps reduce the incidence of PCO as well as the need for Nd:YAG capsulotomy. PMMA IOLs require Nd:YAG capsulotomy earlier in the postoperative period as compared to silicone IOLs. SN - 1082-3069 UR - https://www.unboundmedicine.com/medline/citation/11563781/Neodymium:YAG_capsulotomy_rates_following_phacoemulsification_with_implantation_of_PMMA_silicone_and_acrylic_intraocular_lenses_ L2 - http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=11563781.ui DB - PRIME DP - Unbound Medicine ER -