Helbostad Jorunn L, Oedegaard Maria, Lamb Sarah E, Delbaere Kim, Lord Stephen R, Sletvold Olav
Department of Neuroscience, Norwegian University of Science and Technology, Trondheim, Norway.
Optom Vis Sci. 2013 Apr;90(4):392-9. doi: 10.1097/OPX.0b013e3182843f16.
Cataract surgery improves vision and visual functioning; the effect on general health is not established. We investigated if vision, visual functioning, and general health follow the same trajectory of change the year after cataract surgery and if changes in vision explain changes in visual disability and general health.
One-hundred forty-eight persons, with a mean (SD) age of 78.9 (5.0) years (70% bilateral surgery), were assessed before and 6 weeks and 12 months after surgery. Visual disability and general health were assessed by the CatQuest-9SF and the Short Formular-36.
Corrected binocular visual acuity, visual field, stereo acuity, and contrast vision improved (P < 0.001) from before to 6 weeks after surgery, with further improvements of visual acuity evident up to 12 months (P = 0.034). Cataract surgery had an effect on visual disability 1 year later (P < 0.001). Physical and mental health improved after surgery (P < 0.01) but had returned to presurgery level after 12 months. Vision changes did not explain visual disability and general health 6 weeks after surgery.
Vision improved and visual disability decreased in the year after surgery, whereas changes in general health and visual functioning were short-term effects. Lack of associations between changes in vision and self-reported disability and general health suggests that the degree of vision changes and self-reported health do not have a linear relationship.
白内障手术可改善视力和视觉功能；但其对总体健康的影响尚不明确。我们调查了白内障手术后一年视力、视觉功能和总体健康是否遵循相同的变化轨迹，以及视力变化是否能解释视觉残疾和总体健康的变化。
对148名平均（标准差）年龄为78.9（5.0）岁（70%为双侧手术）的患者在手术前、术后6周和12个月进行评估。通过CatQuest-9SF和简短健康调查问卷-36评估视觉残疾和总体健康状况。
从手术前到术后6周，矫正双眼视力、视野、立体视锐度和对比敏感度均有所改善（P<0.001），直至12个月时视力仍有进一步改善（P = 0.034）。白内障手术在1年后对视觉残疾有影响（P<0.001）。手术后身心健康有所改善（P<0.01），但12个月后恢复到术前水平。术后6周视力变化无法解释视觉残疾和总体健康状况。
术后一年视力改善，视觉残疾减少，而总体健康和视觉功能的变化是短期效应。视力变化与自我报告的残疾和总体健康之间缺乏关联，表明视力变化程度与自我报告的健康状况不存在线性关系。
