Scanning electron microscopic analysis of acrylic intraocular lenses for microincision cataract surgery

Abstract

Visual results and long-term biocompatibility of the IOLs are influenced by surface properties. In recent years, there has been a trend toward microincision cataract surgery. Our study shows that the 2 IOL models now available for sub-2.0 mm microincision have acceptable surface properties.

Capsular bag stability and posterior capsule opacification of a plate-haptic design microincision cataract surgery intraocular lens: 3-year results of a randomised trial

“…However, MICS IOLs have to fulfil special requirements concerning tolerance to high compression during the implantation process additionally to a good capsular bag stability and low PCO rates 9. The plate-haptic MICS IOL used in this study fulfilled these requirements concerning foldability, not showing any visible damage when injected with a special MICS injector 15. Furthermore, Prinz et al 16 showed that the MICS IOL used in our study was stable within the capsular bag concerning rotation, which is relevant for toric designs of this IOL.…”

Edge profile of commercially available square-edged intraocular lenses

“…[16][17][18][19][20][21][22][23][24] Goldberg et al 25 advocate low-voltage SEM using minimal or no conducting surface coating to analyze IOL surfaces. However, until recently, the validity of SEM results has suffered because water-containing materials must be dehydrated for scanning, which deforms the specimen.…”

Postoperative corneal shape changes: Microincision versus small-incision coaxial cataract surgery

“…26 Furthermore, it is often necessary to enlarge the wound to approximately 2.0 mm for IOL insertion because IOLs that can be inserted through a sub-2.0 mm incision are still evolving. [27][28][29][30][31][32] In contrast, coaxial MICS can be performed with an incision of approximately 2.0 mm without wound enlargement for IOL insertion. Furthermore, the technique is easy to learn for most surgeons because it is almost the same as that for conventional SICS.…”