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KMID : 0360220110520020157
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Journal of the Korean Ophthalmological Society
2011 Volume.52 No. 2 p.157 ~ p.162
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Long-Term Changes in Tilt, Decentration and Anterior Chamber Depth After Implantable Collamer Lens Insertion
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Chung Yeon-Woong
Byun Yong-Soo
Chung Sung-Kun
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Abstract
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Purpose: To evaluate the stability of implantable collamer lens (ICL, Staar Surgical AG, Niau, Switzerland) by comparing changes of tilt, decentration and anteroir chamber depth after ICL implantation during 1 year.
Methods: The results of 8 high myopic patients (16 eyes) that had received ICL implantation were retrospectively studied. Tilt and decentration of ICL were measured using an anterior eye segment analysis system (Scheimpflug camera, EAS-1000, Nidek, Japan). Anterior chamber depth was measured in both eyes preoperatively and postoperatively by Scheimpflug camera. The follow-up period was 1 year.
Results: Tilt was 1.90 ± 1.23°, 1.75 ± 0.80°, 1.64 ± 0.86°, 2.08 ± 1.33° (p = 0.36) and decentration were 0.04 ± 0.01 mm, 0.03 ± 0.01 mm, 0.03 ± 0.02 mm, 0.04 ± 0.02 mm (p = 0.59) at 1 week, 1 month, 6 months and 1 year respectively. Tilt and decentration showed no significant change after ICL implantation. The average anterior chamber depth was 2.85 ± 0.26 mm preoperatively, and 2.17 ± 0.39 mm, 2.06 ± 0.31 mm, 2.06 ± 0.34 mm, 2.04 ± 0.35 mm at 1 week, 1 month, 6 months and 1 year respectively. Anterior chamber depth became narrow after ICL implantation (p = 0.02), but showed no significant narrowing postoperatively (p = 0.08).
Conclusions: The IOL position remained stable, with no significant changes for an extended period of tilt, decentration, or anterior chamber depth after ICL implantation.
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KEYWORD
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Anterior chamber depth, Decentration, Implantable collamer lens, Tilt
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