Evaluation of neodymium:yttrium-aluminum-garnet capsulotomies in eyes implanted with AcrySof intraocular lenses1☆,
Section snippets
Material and methods
To calculate the Soemmering’s ring scores and the haptic fixation in both the Nd:YAG group and the No Nd:YAG group, all AcrySof globes in our autopsy eye database were used (all AcrySof globes through December 2000, n = 361; 12 with Nd:YAG capsulotomies). We analyzed CCC diameters and relation of the anterior CCC edge to the optic rim of the IOL in 168 eyes with Alcon AcrySof IOLs, obtained postmortem, accessioned between January 1999 and December 2000. A total of 193 globes from a database of
Results
Table 1 shows the mean values of the Soemmering’s ring scores (SRA × SRI), the percentage of not in-the-bag fixated IOLs, the CCC mean diameter, and nonoverlapping clock hours of the CCC edge in relation to the optic rim in each group. The Soemmering’s ring score was significantly larger in the Nd:YAG group (P < 0.05, Mann-Whitney rank sum test). Three of the 12 IOLs (25.0%) with Nd:YAG capsulotomies (Nd:YAG group) showed loop positions not in the capsular bag, whereas only 19 of 349 IOLs
Discussion
After several experimental studies on the pathogenesis and treatment of PCO in our laboratory, and after compiling information derived from other laboratory and clinical studies from several centers worldwide, we have ascertained six specific factors that play an important role in the origin of PCO and subsequent Nd:YAG capsulotomy.1 Although all steps of the cataract operation are, of course, important in reducing any complication, we have identified three surgery-related factors and three
References (37)
- et al.
Eradication of posterior capsule opacification. Documentation of a marked decrease in Nd:YAG laser posterior capsulotomy rates noted in an analysis of 5416 pseudophakic human eyes obtained postmortem
Ophthalmology
(2001) Incidence of posterior capsule opacification in eyes with and without posterior chamber intraocular lenses
J Cataract Refract Surg
(1986)- et al.
Effect of intraocular lens convexity on posterior capsule opacification
J Cataract Refract Surg
(1986) - et al.
Posterior capsule opacification
Surv Ophthalmol
(1992) Posterior capsule opacification. Part 1Experimental investigations
J Cataract Refract Surg
(1999)- et al.
Surgical prevention of posterior capsule opacification. Part 1Progress in eliminating this complication of cataract surgery
J Cataract Refract Surg
(2000) - et al.
Surgical prevention of posterior capsule opacification. Part 2Enhancement of cortical cleanup by focusing on hydrodissection
J Cataract Refract Surg
(2000) - et al.
Surgical prevention of posterior capsule opacification. Part 3Intraocular lens optic barrier effect as a second line of defense
J Cataract Refract Surg
(2000) - et al.
A systematic overview of the incidence of posterior capsule opacification
Ophthalmology
(1998) - et al.
Posterior capsule opacification. Part 2Clinical findings
J Cataract Refract Surg
(1999)
Effect of intraocular lens size on posterior capsule opacification after phacoemulsification
J Cataract Refract Surg
Two year clinical study of a soft acrylic intraocular lens
J Cataract Refract Surg
Anterior capsule stability in eyes with intraocular lenses made of poly(methyl methacrylate), silicone, and AcrySof
J Cataract Refract Surg
Relationship between intraocular lens biomaterials and posterior capsule opacification
J Cataract Refract Surg
In vivo quantitative measurement of posterior capsule opacification after extracapsular cataract surgery
Am J Ophthalmol
Posterior capsular opacification 5 years after extracapsular cataract extraction
J Cataract Refract Surg
Effect of intraocular lens and anterior capsule opening type on posterior capsule opacification
J Cataract Refract Surg
Anterior capsule opacificationa histopathological study comparing different IOL styles
Ophthalmology
Cited by (0)
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Supported in part by Research to Prevent Blindness, Inc., New York, New York; and a Max Kade Postdoctoral Research Grant (JMS), Max Kade Foundation, New York, New York.
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The authors have no financial or proprietary interest in any products mentioned in this paper.