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Prediction of anterior chamber volume after implantation of posterior chamber phakic intraocular lens

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  • Yuki Takagi
  • Takashi Kojima
  • Tomoya Nishida
  • Tomoaki Nakamura
  • Kazuo Ichikawa

Abstract

Purpose: To predict the anterior chamber volume (ACV) after implantable collamer lens (ICL) implantation based on ICL size and parameters of anterior segment optical coherence tomography (AS-OCT). Design: Retrospective study. Methods: This study included 222 eyes of 222 patients who underwent ICL implantation at Nagoya Eye Clinic. The patients were divided into two groups: prediction group, for creating the prediction equation (148 eyes, mean age: 32.11 ± 8.04 years), and verification group, for verifying the equation (74 eyes, mean age: 33.03 ± 6.74 years). The angle opening distance (AOD), anterior chamber width (ACW), ACV, anterior chamber depth, lens vault, angle-to-angle distance, angle recess area, and trabecular iris space area were calculated using AS-OCT. A stepwise multiple regression analysis was performed. After the creation of the prediction equation, its accuracy was verified in the verification group. Results: The ACV, AOD750, ACW, and ICL size were selected as explanatory variables to predict postoperative ACV. Mean predicted (114.2 ± 21.83 mm3) and actual postoperative ACVs (116.1 ± 25.41 mm3) were not significantly different (P = 0.269); absolute error was 10.59 ± 9.13 mm3. In addition, there was high correlation between actual and predictive ACV (adjusted R2 = 0.6996, p

Suggested Citation

  • Yuki Takagi & Takashi Kojima & Tomoya Nishida & Tomoaki Nakamura & Kazuo Ichikawa, 2020. "Prediction of anterior chamber volume after implantation of posterior chamber phakic intraocular lens," PLOS ONE, Public Library of Science, vol. 15(11), pages 1-11, November.
    • Handle: RePEc:plo:pone00:0242434
    DOI: 10.1371/journal.pone.0242434
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