Gnyawali Subodh, Shrestha Jyoti Baba, Bhattarai Dipesh, Upadhyay Madan
B. P. Eye Foundation, Maharajgunj, Kathmandu, Nepal.
Optom Vis Sci. 2012 Dec;89(12):1752-6. doi: 10.1097/OPX.0b013e3182772f3c.
To identify the optical needs of students with low vision studying in the integrated schools for the blind in Nepal.
A total of 779 blind and vision-impaired students studying in 67 integrated schools for the blind across Nepal were examined using the World Health Organization/Prevention of Blindness Eye Examination Record for Children with Blindness and Low Vision. Glasses and low-vision devices were provided to the students with low vision who showed improvement in visual acuity up to a level that was considered sufficient for classroom learning. Follow-up on the use and maintenance of device provided was done after a year.
Almost 78% of students studying in the integrated schools for the blind were not actually blind; they had low vision. Five students were found to be wrongly enrolled. Avoidable causes of blindness were responsible for 41% of all blindness. Among 224 students who had visual acuity 1/60 or better, distance vision could be improved in 18.7% whereas near vision could be improved in 41.1% students. Optical intervention provided improved vision in 48.2% of students who were learning braille. Only 34.8% students were found to be using the devices regularly after assessment 1 year later; the most common causes for nonuse were damage or misplacement of the device.
A high proportion of students with low vision in integrated schools could benefit from optical intervention. A system of comprehensive eye examination at the time of school enrollment would allow students with low vision to use their available vision to the fullest, encourage print reading over braille, ensure appropriate placement, and promote timely adoption and proper usage of optical device.
确定在尼泊尔盲人融合学校就读的低视力学生的视力需求。
使用世界卫生组织/预防失明儿童低视力眼检查记录,对尼泊尔67所盲人融合学校的779名盲人和视力受损学生进行了检查。为视力有所改善、达到课堂学习足够视力水平的低视力学生提供了眼镜和低视力设备。一年后对所提供设备的使用和维护情况进行了随访。
在盲人融合学校就读的学生中,近78%实际上并非盲人,而是低视力。发现有5名学生入学信息有误。可避免的失明原因占所有失明情况的41%。在视力为1/60或更好的224名学生中,18.7%的学生远视力可得到改善,41.1%的学生近视力可得到改善。光学干预使48.2%学习盲文的学生视力得到改善。一年后的评估发现,只有34.8%的学生经常使用这些设备;不使用的最常见原因是设备损坏或丢失。
融合学校中很大一部分低视力学生可从光学干预中受益。在入学时进行全面眼部检查的系统将使低视力学生充分利用其现有视力,鼓励阅读印刷品而非盲文,确保适当安置,并促进光学设备的及时采用和正确使用。