Effect of Nd: YAG Laser Capsulotomy Size on Intraocular Lens Tilt and Decentration after Femtosecond Laser-Assisted Capsulotomy
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Tarih
2021
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Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Purpose: To determine the effect of capsulotomy size on intraocular lens (IOL) tilt and decentration in eyes undergoing Nd:YAG laser capsulotomy due to posterior capsular opacification (PCO) following femtosecond laser-assisted (FSL) cataract surgery. Materials and Methods: The study included 42 patients who underwent FSL-assisted standard 5.0-mm anterior capsulotomy followed by Nd:YAG laser capsulotomy at a mean of 16.2 (6–34) months after cataract surgery. The patients were divided based on Nd:YAG posterior capsulotomy size into the 3.5 mm group (22 eyes) and the 4.0 mm group (20 eyes). IOL tilt and decentration were measured with Scheimpflug camera before and at one month after Nd:YAG laser capsulotomy. Results: Before capsulotomy, there were no differences between the 3.5 mm and 4.0 mm groups in terms of angle of tilt or decentration at either meridian (p>0.05). After capsulotomy, both groups showed significant decreases in angle of tilt (mean vertical/horizontal values: 1.4/1.2 degrees in the 3.5 mm group; 0.9/0.8 degrees in the 4.0 mm group) and significant increases in decentration (mean vertical/horizontal values: 0.10/0.11 mm in the 3.5 mm group; 0.27/0.24 mm in the 4.0 mm group) at both meridians compared to precapsulotomy measurements (p<0.05). After capsulotomy, all tilt and decentration parameters differed significantly between the two groups at both meridians (p<0.05 for all). Conclusions: The diameter of Nd:YAG posterior capsulotomy performed after FSL-assisted cataract surgery affected the mechanical stability of the IOL, but the tilt and decentration values were very small and may not be clinically significant.
Açıklama
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Kaynak
Glokom Katarakt
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Cilt
16
Sayı
3
