Geerards A J, Hassmann E, Beekhuis W H, Remeyer L, van Rij G, Rijneveld W J
Rotterdam Eye Hospital, Netherlands.
Br J Ophthalmol. 1997 Sep;81(9):774-7. doi: 10.1136/bjo.81.9.774.
A total of 97 triple procedures performed over a 6 year period were studied retrospectively to determine the best approach to calculate intraocular lens power.
The cases were divided into two diagnostic categories.
After 1 year best corrected visual acuity was 20/40 or better in 37.5% of the cases of the 'modified group'. This group consists of patients with the diagnosis Fuchs' dystrophy, non-guttate endothelial dystrophy, and Reis-Buckler dystrophy. Analysis of visual acuity was made using logMAR. A final postoperative refraction within 2 dioptres of predicted refraction was achieved in 76.5% of patients in the modified group.
In future, in the absence of a keratometry, a keratometry value of 7.49 mm will be used for calculation of the power of the implant as analysed in this study.
回顾性研究6年内共97例三联手术,以确定计算人工晶状体屈光力的最佳方法。
将病例分为两个诊断类别。
“改良组”37.5%的病例术后1年最佳矫正视力达到20/40或更好。该组包括诊断为富克斯营养不良、非点状内皮营养不良和赖斯-巴克勒营养不良的患者。使用最小分辨角对数视力表(logMAR)进行视力分析。改良组76.5%的患者术后最终屈光度数在预测屈光度数的2屈光度范围内。
未来,在没有角膜曲率计的情况下,本研究分析得出将使用7.49毫米的角膜曲率计值来计算植入物的屈光力。