Cairns L, Sommer A
Trans Am Ophthalmol Soc. 1984;82:166-75.
Despite the fact that two community-based surgeons switched from routine intracapsular cataract extraction to planned extracapsular cataract surgery and routine implantation of posterior chamber lenses, they did not materially increase the size of their surgical load or change their indications for cataract surgery. In contrast a similar change in surgical technique by two high-referral hospital-based surgeons was associated with a marked increase in operative rates and increased preoperative acuity. A significant proportion of this change appeared to represent reduced reluctance toward monocular cataract surgery. By eliminating the aniseikonia of monocular aphakic and visual distortion of aphakic spectacle correction, use of IOLs appears to have contributed to changing indications for cataract surgery among some ophthalmologists. A larger, more comprehensive study would be needed to determine the full extent of these trends.
尽管两名社区外科医生从常规囊内白内障摘除术改为计划性囊外白内障手术并常规植入后房型人工晶状体,但他们并没有实质性地增加手术量,也没有改变白内障手术的适应症。相比之下,两名高转诊率的医院外科医生进行的类似手术技术改变,伴随着手术率的显著提高和术前视力的改善。这种变化的很大一部分似乎是由于对单眼白内障手术的顾虑减少。通过消除单眼无晶状体眼的像不等和无晶状体眼镜矫正的视觉畸变,人工晶状体的使用似乎促使一些眼科医生改变了白内障手术的适应症。需要进行更大规模、更全面的研究来确定这些趋势的全部范围。