UNASSIGNED:比较衍射型多焦点和单焦点晶状体在激光原位角膜磨镶术(LASIK)后白内障手术患者中的临床效果。
未经评估:这是一个回顾,在转诊医疗中心进行的临床结局比较研究.研究了LASIK术后接受简单白内障手术并接受衍射多焦点或单焦点晶状体的患者。比较基线和术后视力。仅用BarrettTrue-K公式计算人工晶状体(IOL)屈光力。
未经评估:在基线时,两组的年龄相当,性别,远视和近视LASIK等分布。接受衍射透镜的患者获得20/25或更高的未矫正远距视敏度(UCDVA)的百分比显着提高(93只眼中的80只眼,86%vs.82只眼睛中的36只,43.9%,P=1.0x105)和J1或更高的未矫正近视力(63%vs.0)与单焦点组比拟。残余屈光不正无显著差异(0.37±0.39vs.分别为0.44±0.39,在这两组中P=0.16)。然而,衍射组中更多的眼睛获得了20/25或更好的UCDVA,残余屈光度为0.25-0.5D(42眼中的36只,86%vs.24只眼睛中的15只,63%,P=0.032)或0.75-1.5D(21只眼中的15只,23%vs.22只眼睛中的0只与单焦点组相比,P=1.0x10-5)。
UNASSIGNED:这项初步研究表明,有LASIK病史的患者接受衍射多焦点晶状体的白内障手术并不低于接受单焦点晶状体的患者。LASIK术后有衍射性晶状体的患者更有可能不仅获得出色的近视力,但也可能更好的UCDVA,不管残余屈光不正。
To compare the clinical outcomes of diffractive multifocal and monofocal lenses in post-laser in situ keratomileusis (LASIK) patients who underwent cataract surgery.
This was a retrospective, comparative study of clinical outcomes that was conducted at a referral medical center. Post-LASIK patients who underwent uncomplicated cataract surgery and received either diffractive multifocal or monofocal lens were studied. Visual acuities were compared at baseline and postoperatively. The intraocular lens (IOL) power was calculated with Barrett True-K Formula only.
At baseline, both groups had comparable age, gender, and an equal distribution hyperopic and myopic LASIK. A significantly higher percentage of patients receiving diffractive lenses achieved uncorrected distance visual acuity (UCDVA) of 20/25 or better (80 of 93 eyes, 86% vs. 36 of 82 eyes, 43.9%, P = 1.0 x 105) and uncorrected near vision of J1 or better (63% vs. 0) compared to the monofocal group. The residual refractive error had no significant difference (0.37 ± 0.39 vs. 0.44 ± 0.39, respectively, P = 0.16) in these two groups. However, more eyes in the diffractive group achieved UCDVA of 20/25 or better with residual refractive error of 0.25-0.5 D (36 of 42 eyes, 86% vs. 15 of 24 eyes, 63%, P = 0.032) or 0.75-1.5 D (15 of 21 eyes, 23% vs. 0 of 22 eyes, P = 1.0 x 10-5) compared to the monofocal group.
This pilot study shows that patients with a history of LASIK who undergo cataract surgery with a diffractive multifocal lens are not inferior to those who receive monofocal lens. Post-LASIK patients with diffractive lens are more likely to achieve not only excellent near vision, but also potentially better UCDVA, regardless of the residual refractive error.