Reddy B Sandeep, Das Taraprasad, Mirdha Ghansyam S, Reddy Nagavardhan
Optical Division, L V Prasad Eye Institute, KAR Campus, Hyderabad, Telangana, India.
Indian J Ophthalmol. 2017 Aug;65(8):729-732. doi: 10.4103/ijo.IJO_819_16.
The aim of this study was to explore the possibilities of acceptance of a ready-to-dispense spherical equivalent (SE) of spherocylindrical (SC) correction spectacles in rural India.
Snellen visual acuity with SE power of refracted SC lenses was prospectively collected from all individuals visiting vision centers in Phase 1 (vision correction accuracy) of the study conducted in two South Indian districts. The satisfaction level was recorded by asking one standard question. The SE spectacles were dispensed in vision centers of one district in Phase 2 (SE acceptance) with a suggestion to return, if unsatisfied, for free exchange of spectacles within a month of dispensing.
In Phase 1, 929 of 3529 patients were refracted and it was found that 320 patients and one eye of one patient (641 eyes) had astigmatism. The average age was 41 (±16; range: 7-84) years. There was no reduction of visual acuity in SE of 0.25 Dcyl (100% satisfaction) and progressive decrease in satisfaction to 43%, 26%, and 19% with SE correction of 0.50, 0.75, and 1.00 Dcyl, respectively. In Phase 2, 988 of 6168 patients needed refraction and 240 had astigmatism. A total of 103 patients (206 eyes) accepted SE equivalent spectacles. No client returned for the free exchange of spectacles.
Dispensing SE power up to 1 Dcyl in ready - made spectacles could be considered in remote rural populations in resource-poor economic conditions.
本研究旨在探索在印度农村地区接受现成的球柱镜（SC）矫正眼镜等效球镜度（SE）的可能性。
在印度南部两个地区进行的研究的第一阶段（视力矫正准确性）中，前瞻性收集了所有前往视力中心就诊的个体经折射的SC镜片的SE度数下的斯内伦视力。通过询问一个标准问题来记录满意度水平。在第二阶段（SE接受度），在一个地区的视力中心发放SE眼镜，并建议如果不满意，在配镜后一个月内免费更换眼镜。
在第一阶段，3529名患者中有929名接受了验光，发现320名患者和一名患者的一只眼睛（共641只眼）有散光。平均年龄为41（±16；范围：7 - 84）岁。0.25 Dcyl的SE下视力无下降（满意度100%），而0.50、0.75和1.00 Dcyl的SE矫正下满意度分别逐渐降至43%、26%和19%。在第二阶段，6168名患者中有988名需要验光，240名有散光。共有103名患者（206只眼）接受了SE等效眼镜。没有顾客回来免费更换眼镜。
在资源匮乏的经济条件下，对于偏远农村人口，可以考虑在现成眼镜中发放高达1 Dcyl的SE度数。
