Sharma M K, Thapa H, Paudyal B, Adhikari R K, Dhakwa K
Lumbini Eye Institute, Bhairahawa, Nepal.
Nepal J Ophthalmol. 2010 Jul-Dec;2(2):127-31. doi: 10.3126/nepjoph.v2i2.3719.
There is an increasing awareness about the needs of students with low vision, particularly in developing countries where programs of integrated education are being developed. However, the appropriate low vision services are usually neither available, nor affordable.
To study the profile of students with low vision in Lumbini Zone of Nepal.
A cross-sectional study included students with low vision from 8 integrated schools. The reading performance was measured using their own text-books with optical low vision devices prescribed for near reading. The reading rates were measured on a range of print sizes. The Standard Clinical Low Vision Assessment Form and the National Low Vision Program protocol were used. SPSS software was used in data analysis.
Of 46 students enrolled, 23 had a mild visual impairment, 18 had severe visual impairment and 5 were blind. Spectacles were needed for 29 (63 %) students. Of the 11 students who had been wearing glasses, the visual acuity improved in 4 with a change in prescription. 91 % of the students had near vision better or equal to 1.5 M with optical low vision services for near reading. The reading rate was 24 WPM at the age of 5 years, whereas at the age of 21 years, it was 55 WPM.
The majority of the students with low vision need optical low vision services. Accurate refraction is important in these students. The reading rate increases significantly with improved near visual acuity.
人们越来越意识到视力低下学生的需求,特别是在那些正在开展融合教育项目的发展中国家。然而,合适的低视力服务通常既无法获得,也难以负担得起。
研究尼泊尔蓝毗尼专区视力低下学生的概况。
一项横断面研究纳入了来自8所融合学校的视力低下学生。使用他们自己的教科书和为近距离阅读配备的光学低视力设备来测量阅读表现。在一系列印刷字体大小下测量阅读速度。使用标准临床低视力评估表和国家低视力项目方案。数据分析使用SPSS软件。
在登记的46名学生中,23名有轻度视力损害,18名有重度视力损害,5名失明。29名(63%)学生需要眼镜。在11名一直戴眼镜的学生中,4名因处方改变视力得到改善。91%的学生在使用光学低视力服务进行近距离阅读时,近视力优于或等于1.5M。5岁时阅读速度为每分钟24个单词,而21岁时为每分钟55个单词。
大多数视力低下学生需要光学低视力服务。准确验光对这些学生很重要。随着近视力的改善,阅读速度显著提高。