Yamaguchi Takefumi, Negishi Kazuno, Dogru Murat, Saiki Megumi, Tsubota Kazuo
Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan.
J Refract Surg. 2009 May;25(5):410-5. doi: 10.3928/1081597X-20090422-02.
To report the changes in functional visual acuity in cataract surgery patients with good pre- and postoperative visual acuity.
Functional visual acuity was evaluated in 13 eyes of 10 patients before and 1 month after phacoemulsification with implantation of acrylic intraocular lenses. Pre- and postoperative best spectacle-corrected visual acuities (BSCVA) were better than 20/25 in all patients. Low contrast visual acuity and Schirmer tests were also performed before and after surgery.
Mean pre- and postoperative logMAR BSCVA were -0.02 +/- 0.06 and -0.05 +/- 0.04, respectively (P > .05). Mean preoperative logMAR functional visual acuity improved from 0.29 +/- 0.17 to 0.092 +/- 0.13 postoperatively (P < .05). The visual maintenance ratio in functional visual acuity and low contrast visual acuity also improved significantly after cataract surgery (P < .05).
Measurement of functional visual acuity seems to be useful in the evaluation of timing of surgery, visual quality, and changes in kinetic vision after phacoemulsification surgery.
报告白内障手术前后视力良好的患者功能性视敏度的变化。
对10例患者的13只眼在超声乳化联合丙烯酸人工晶状体植入术前及术后1个月进行功能性视敏度评估。所有患者术前及术后最佳眼镜矫正视力（BSCVA）均优于20/25。术前及术后还进行了低对比度视敏度和泪液分泌试验。
术前及术后平均logMAR BSCVA分别为-0.02±0.06和-0.05±0.04（P>.05）。术前平均logMAR功能性视敏度从0.29±0.17改善至术后的0.092±0.13（P<.05）。白内障手术后功能性视敏度和低对比度视敏度的视觉维持率也显著提高（P<.05）。
功能性视敏度测量似乎有助于评估白内障超声乳化手术后的手术时机、视觉质量和动态视力变化。
