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Updated: Jul 17, 2026

Rotating the Intraocular Lens to Prevent Posterior Capsular Opacification in Cataract Surgeries
Published on: July 7, 2023
Influences of optic edge design on posterior capsule opacification and anterior capsule contraction
Kazunori Miyata1, Satoshi Kato, Ryohei Nejima
1Miyata Eye Hospital, Miyakonojo, Japan.
Purpose:
To investigate the influence of optic edge design on posterior capsule opacification (PCO) and anterior capsule contraction (ACC).
Methods:
A total of 43 eyes of 43 patients scheduled to undergo cataract surgery were included in this study. Patients received either a Sensor AR40 intraocular lens (IOL) or a Sensor AR40e IOL. The area of the anterior capsule opening (ACO) was determined by diaphanoscopy using the anterior eye segment analysis system EAS-1000 at 1 day, 1 week and 1, 3, 6 and 12 months postoperatively. Posterior capsule opacification was evaluated objectively in two ways, using either the EAS-1000 or POCOman.
Results:
There was no significant difference between the two groups in either ACO area or percentage reduction of ACO area at any time-point after surgery. The difference in the degree of PCO 1 year after surgery was not significant when measured by either the EAS-1000 or POCOman.
Conclusions:
A sharp IOL edge is required to prevent PCO. Sharp-edged IOLs do not appear to be a risk factor for ACC.
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