ヤマダ　ハルヒコ   YAMADA HARUHIKO   山田　晴彦    所属   関西医科大学  眼科学講座    職種   非常勤講師
言語種別	英語
発表タイトル	Comparison of fundus-viewing quality using wide-field observation system through various intraocular lenses
会議名	Association for Research in Vision and Ophthalmology 2013 Annual Meeting
学会区分	国際学会及び海外の学会
発表者・共同発表者	◎Yamada H
発表年月日	2013/05
開催地 （都市, 国名）	Seattle, USA
概要	Purpose Many kinds of intraocular lenses (IOLs) are available, but the quality of vision during vitrectomy with IOL implantation has not been well documented. In this study, we aimed to clarify differences of fundus-viewing quality wide-field observation system by quantitating fundus images taken through various IOLs. Materials and Methods We used an artificial model eye (Eyetech Co, USA) with a 100 dot/cm2 grid pattern at the fundus. An IOL was engaged properly and was exchangeable. Leica 841 surgical microscope with wide field attachment (Leica GMBH, Germany) with a CCD camera was used to capture fundus images through the IOLs. The IOLs tested were X-70, X-60 (Santen), AR40e, ZA9003 (Abott), SA60AT, SN60WF (Alcon), VA60BBR, VA65BB, PY60R, PY60AD, and VA70AD (HOYA). ZA9003, SN60WF, PY60AD, and VA70AD were aspherical (Asph) and all other IOLs were spherical (Sph). X-70 and VA70AD had a 7.0 mm optics diameter (OD), VA65BB had a 6.5 mm OD and the rest had a 6.0 mm OD. All images were processed using Photoshop 4.0 software (Adobe Co, USA). The images were evaluated as follows: 1) the number of dots visible through the lens, 2) the area of the dots visible through the lens, and 3) the average area of the dots visible through the lens. ANOVA were used for statistical analysis. Results 1)X-70 and X-60 were bigger in the number of dots than the other IOLs. 2)The visible dot area was largest in X70 compared to the other IOLs (p=0.0002-0.026). 3)The average area of the dots were bigger in X-70 and VA65 IOLs but not statistically significant difference compared to other IOLs. There were no statistical differences between Asph IOLs and Sph IOLs or IOLs with larger optics and smaller optics, except the average area of the dots in larger IOLs.