PDF(Pubmed)
Abstract：
UNASSIGNED: Glare is a known side effect of intraocular lens (IOL) implantation, affected principally by IOL material and optics, although it is reported subjectively to decrease in impact with time. However, little objective data have been published on changes over time, how these relate to subjective reports, and whether those who will report greater glare symptoms can be predicted prior to IOL implantation.
UNASSIGNED: A total of 32 patients (aged 72.4 ± 8.0 years) with healthy eyes were implanted bilaterally with hydrophilic 600s (Rayner, Worthing, UK) or hydrophobic Acrysof (Alcon, Texas, USA) acrylic IOLs (n = 16 each, randomly assigned). Each patient reported their dysphotopsia symptoms subjectively using the validated forced choice photographic questionnaire for photic phenomena, and halo size resulting from a bright light in a dark environment was quantified objectively in eight orientations using the Aston Halometer. Assessment was performed binocularly pre-operatively and at 1, 2, 3, and 4 weeks after IOL implantation.
UNASSIGNED: The study was carried out at the National Health Service Ophthalmology Department, Queen Elizabeth Hospital, Birmingham, UK.
UNASSIGNED: Visual acuity (average 0.37 ± 0.26 logMAR) did not correlate with subjective glare (r = 0.184, p = 0.494) or objective glare (r = 0.294, p = 0.270) pre-surgery. Objective halo size (F = 112.781, p < 0.001) decreased with cataract removal and IOL implantation and continued to decreased over the month after surgery. Subjective dysphotopsia complaints (p < 0.001) were also greater pre-surgery, but did not change thereafter (p = 0.228). In neither case was there a difference with IOL material (p > 0.05). It was not possible to predict post-surgery dysphotopsia from symptoms or a ratio of symptoms to halo size pre-surgery (p > 0.05).
UNASSIGNED: Subjective dysphotopsia and objective halos caused by cataracts are greatly reduced by implantation of IOL after cataract removal causing few perceivable symptoms. However, objective measures are able to quantify a further reduction in light scatter over the first month post-IOL implantation, suggesting that any subjective effects over this period are due to the healing process and not due to neuroadaptation.
UNASSIGNED: A total of 32 patients (aged 72.4 ± 8.0 years) with healthy eyes were implanted bilaterally with hydrophilic 600s (Rayner, Worthing, UK) or hydrophobic Acrysof (Alcon, Texas, USA) acrylic IOLs (n = 16 each, randomly assigned). Each patient reported their dysphotopsia symptoms subjectively using the validated forced choice photographic questionnaire for photic phenomena, and halo size resulting from a bright light in a dark environment was quantified objectively in eight orientations using the Aston Halometer. Assessment was performed binocularly pre-operatively and at 1, 2, 3, and 4 weeks after IOL implantation.
UNASSIGNED: The study was carried out at the National Health Service Ophthalmology Department, Queen Elizabeth Hospital, Birmingham, UK.
UNASSIGNED: Visual acuity (average 0.37 ± 0.26 logMAR) did not correlate with subjective glare (r = 0.184, p = 0.494) or objective glare (r = 0.294, p = 0.270) pre-surgery. Objective halo size (F = 112.781, p < 0.001) decreased with cataract removal and IOL implantation and continued to decreased over the month after surgery. Subjective dysphotopsia complaints (p < 0.001) were also greater pre-surgery, but did not change thereafter (p = 0.228). In neither case was there a difference with IOL material (p > 0.05). It was not possible to predict post-surgery dysphotopsia from symptoms or a ratio of symptoms to halo size pre-surgery (p > 0.05).
UNASSIGNED: Subjective dysphotopsia and objective halos caused by cataracts are greatly reduced by implantation of IOL after cataract removal causing few perceivable symptoms. However, objective measures are able to quantify a further reduction in light scatter over the first month post-IOL implantation, suggesting that any subjective effects over this period are due to the healing process and not due to neuroadaptation.
摘要：
■眩光是人工晶状体（IOL）植入的已知副作用，主要受人工晶状体材料和光学的影响，尽管据报道，主观上影响随着时间的推移而减少。然而,随着时间的推移，很少有客观的数据被公布，这些与主观报告有什么关系，以及在IOL植入之前是否可以预测那些报告更多眩光症状的人。
■共有32例眼睛健康的患者（年龄72.4±8.0岁）双侧植入亲水性600s（Rayner，更糟糕的是,英国)或疏水Acrysof(Alcon，德州,美国)丙烯酸IOL(每个n=16，随机分配)。每位患者使用经过验证的强迫性选择摄影问卷主观地报告了他们的视力障碍症状，使用AstonHalometer在八个方向上客观地量化了黑暗环境中强光产生的光晕大小。术前以及IOL植入后1、2、3和4周进行双眼评估。
■这项研究是在国家卫生服务眼科部门进行的，伊丽莎白女王医院,伯明翰,英国。
■视力（平均0.37±0.26logMAR）与术前主观眩光（r=0.184，p=0.494）或客观眩光（r=0.294，p=0.270）无关。目标晕圈大小（F=112.781，p<0.001）随着白内障摘除和人工晶状体植入而减小，并在术后一个月内继续减小。主观性失眠主诉（p<0.001）也更多的是手术前，但此后没有变化(p=0.228)。在两种情况下,与IOL材料均不存在差异(p>0.05)。不可能从症状或症状与手术前光环大小的比率来预测手术后视力障碍(p>0.05)。
■白内障摘除后植入IOL可大大减少白内障引起的主观视力障碍和客观光晕，几乎没有可察觉的症状。然而,客观测量能够量化IOL植入后第一个月光散射的进一步减少，这表明在此期间的任何主观影响都是由于愈合过程而不是由于神经适应。
■共有32例眼睛健康的患者（年龄72.4±8.0岁）双侧植入亲水性600s（Rayner，更糟糕的是,英国)或疏水Acrysof(Alcon，德州,美国)丙烯酸IOL(每个n=16，随机分配)。每位患者使用经过验证的强迫性选择摄影问卷主观地报告了他们的视力障碍症状，使用AstonHalometer在八个方向上客观地量化了黑暗环境中强光产生的光晕大小。术前以及IOL植入后1、2、3和4周进行双眼评估。
■这项研究是在国家卫生服务眼科部门进行的，伊丽莎白女王医院,伯明翰,英国。
■视力（平均0.37±0.26logMAR）与术前主观眩光（r=0.184，p=0.494）或客观眩光（r=0.294，p=0.270）无关。目标晕圈大小（F=112.781，p<0.001）随着白内障摘除和人工晶状体植入而减小，并在术后一个月内继续减小。主观性失眠主诉（p<0.001）也更多的是手术前，但此后没有变化(p=0.228)。在两种情况下,与IOL材料均不存在差异(p>0.05)。不可能从症状或症状与手术前光环大小的比率来预测手术后视力障碍(p>0.05)。
■白内障摘除后植入IOL可大大减少白内障引起的主观视力障碍和客观光晕，几乎没有可察觉的症状。然而,客观测量能够量化IOL植入后第一个月光散射的进一步减少，这表明在此期间的任何主观影响都是由于愈合过程而不是由于神经适应。
