Area densitometry using rotating Scheimpflug photography for posterior capsule opacification and surface light scattering analyses

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• 作者：Keiichiro Minami ; PhD ; ^{minami@miyata-med.ne.jp" class="auth_mail" title="E-mail the corresponding author} ; Masato Honbo ; Yosai Mori ; MD ; Yasushi Kataoka ; MD ; Kazunori Miyata ; MD ; PhD
• 刊名：Journal of Cataract & Refractive Surgery
• 出版年：2015
• 出版时间：November 2015
• 年：2015
• 卷：41
• 期：11
• 页码：2444-2449
• 全文大小：715 K

文摘

To compare area densitometry analysis using rotating Scheimpflug photography in quantifications of posterior capsule opacification (PCO) and surface light scattering with previous anterior-segment analyzer measurement.

Setting

Miyata Eye Hospital, Miyazaki, Japan.

Design

Prospective observational case series.

Methods

Scheimpflug images of eyes with foldable intraocular lenses (IOLs) were obtained using rotating and fixed Scheimpflug photography. Area densitometry on the posterior and anterior surfaces was conducted for PCO and surface light scattering analyses, respectively, with an identical area size. Correlation between two measurements was analyzed using linear regression.

Results

The study included 105 eyes of 74 patients who received IOLs 1 to 18 years (mean, 4.9 ± 4.5 years) postoperatively. In the PCO analysis on the posterior IOL surface, there was a significant correlation between the two measurements (P < .001, R² = 0.60). In the surface light scattering analysis, a significant and higher correlation was obtained (P < .001, R² = 0.91) until the fixed Scheimpflug photography exhibited saturation due to intensive scatterings.

Conclusion

Area densitometry combined with a rotating Scheimpflug photography was exchangeable to previously established densitometry measurement, and allowed successive evaluation in longer-term observations.