Venter Jan A, Collins Barrie M, Hannan Stephen J, Teenan David, Schallhorn Julie M
Optical Express, Glasgow, UK.
Eye and Laser Institute, Port Elizabeth, South Africa.
Clin Ophthalmol. 2022 Aug 10;16:2531-2543. doi: 10.2147/OPTH.S376323. eCollection 2022.
To evaluate clinical and subjective outcomes of a segmented bifocal IOL with a 2.0 D near addition.
Retrospective analyses of patients who had undergone refractive lens exchange with bilateral implantation of the SBL-2 IOL (Lenstec, Inc., Christ Church, Barbados) were performed. The number of patients included in the study was 389 (778 eyes). Refractive, visual and patient-reported outcomes were presented for the last available visit (mean follow-up 2.05 ± 1.33 months).
The percentage of eyes within ±0.50D and ±1.00D of emmetropia was 82.5% (642/778) and 97.8% (761/778), respectively. The mean uncorrected intermediate visual acuity (66 cm) of the last available visit was 0.08 ± 0.15 logMAR monocularly and 0.04 ± 0.14 logMAR binocularly. The mean monocular and binocular uncorrected near visual acuity (40 cm) were 0.30 ± 0.15 logMAR and 0.24 ± 0.14 logMAR, respectively. Of all patients, 97.2% (378/389) claimed never to use any correction for distance vision, while 93.1% (362/389) of patients did not require any correction for near vision. The mean scores for visual phenomena (on the scale from 1 - no difficulty to 7 - severe difficulty) were 1.8 ± 1.3, 1.7 ± 1.2, 1.7 ± 1.2 and 1.6 ± 1.2 for glare, halo, starburst, and ghosting/double vision, respectively.
Despite the lower near addition of SBL-2 segmented bifocal IOL, patients achieved reasonable rates of spectacle independence and a low incidence of visual phenomena.
评估一款附加度数为2.0D的分段式双焦点人工晶状体的临床及主观效果。
对接受了屈光性晶状体置换术并双侧植入SBL-2人工晶状体（Lenstec公司，巴巴多斯基督城）的患者进行回顾性分析。纳入研究的患者有389例（778只眼）。呈现了最后一次可获得随访时（平均随访2.05±1.33个月）的屈光、视力及患者报告的结果。
屈光不正度数在正视眼±0.50D和±1.00D范围内的眼的比例分别为82.5%（642/778）和97.8%（761/778）。最后一次可获得随访时的平均单眼未矫正中距离视力（66cm）为0.08±0.15logMAR，双眼为0.04±0.14logMAR。平均单眼和双眼未矫正近视力（40cm）分别为0.30±0.15logMAR和0.24±0.14logMAR。所有患者中，97.2%（378/389）声称从未使用任何矫正来改善远视力，而93.1%（362/389）的患者不需要任何近视力矫正。视觉现象的平均评分（评分范围为1 - 无困难至7 - 严重困难），眩光、光晕、星芒及重影/复视分别为1.8±1.3、1.7±1.2、1.7±1.2和1.6±1.2。
尽管SBL-2分段式双焦点人工晶状体的近附加度数较低，但患者实现了较高的脱镜率，且视觉现象的发生率较低。
