FREQUENCY OF SECONDARY CATARACT DEVELOPMENT IN PSEUDOPHAKIC EYES WITH POSTERIOR CHAMBER IOL OF CURRENT DESIGNS IN CASE OF AXIAL MYOPIA

Abstract

Purpose. To evaluate a frequency of secondary cataract development in different periods of postoperative follow-up after cataract phacoemulsification depending on the degree of axial myopia and the implanted IOL design. Material and methods. A retrospective analysis of secondary cataract formation in the long-term follow-up after cataract phacoemulsification with foldable intraocular lens implantation was performed in 16575 eyes out of 8722 patients with emmetropia and axial myopia. The average age of patients was 74±7 years, and the follow-up period was 5 years. The eyes with associated pathology such as glaucoma, diabetic retinopathy etc, were excluded from the study. Depending on the design of implanted IOL all eyes were divided into 3 groups. The first group included 5527 eyes with the implanted B-lens IOL (Hanita, Israel). The second group included 5629 eyes with the implanted Idea IOL (XCELENS, Switzer-land). The third group consisted of 5419 eyes with the implanted Acrysof natural, SA60AT IOL (Alcon, USA). In every case the degree of myopia was evaluated using axial length of an eye that was measured instrumentally. The incidence of secondary cataract formation was evaluated on quantity of YAG-laser posterior capsule dissection within the 5-year follow-up after phacoemulsification with IOL implantation. Conclusion. According to our results the incidence of PCO is directly dependent on the axial length of the eye, strongly increasing in eyes with high axial myopia. The design and material of implanted IOL played an important role in PCO formation too. The eyes with the Acrysof natural, SA60AT IOL (Al-con, USA) had the lowest incidence of PCO in the long-term follow-up.

Keywords

• phacoemulsification
• secondary cataract
• posterior capsule opacities
• intraocular lens
• myopia