Shah Mufarriq, Khan Muhammad T, Saeed Nasir
Department of Optometry, Pakistan Institute of Community Ophthalmology, Hayatabad Medical Complex, Peshawar, Pakistan.
Department of Ophthalmology, Hayatabad Medical Complex, Peshawar, Pakistan.
Saudi J Ophthalmol. 2020 Dec 28;34(2):111-115. doi: 10.4103/1319-4534.305036. eCollection 2020 Apr-Jun.
All people with oculocutaneous albinism (OCA) have reduced vision. This study aimed to assess the benefits of low vision aids for people with OCA.
Seventy-seven consecutive people with OCA age 4 years and above examined in a low vision clinic were included in the study. Uncorrected and best-corrected visual acuity (VA), VA with low vision devices, types of low vision aids, and refractive errors data were analyzed.
Of the 77 people with OCA, 57% were in the age group between 4 and 15 years and 43% in the age group of 16 years and above. At the time of presentation, the percentages of visually impaired, severe visually impaired, and blind (using WHO low vision criteria) were 52%, 22%, and 25%. Among them, 39% has near VA of 1 M or better. Difference in the means of the spherical equivalent refractive error in the right eyes and left eyes was -0.494 diopters (-01.686, 0.699; 95% confidence interval). VA improved significantly after adequate refractive correction by more than one log MAR lines in 38.6% ( < 0.01). With low vision devices, in 85.7% ( = 66) participants, VA was enhanced to normal level (6/18 or better) in the better eye while 7.8% still remained in the blind category. Telescopes were prescribed to 61% people for the enhancement of distance VA and hand hold magnifiers were prescribed to 22% people to meet their needs.
Low vision aids can be successfully used in visual rehabilitation of people with OCA to meet their needs.
所有眼皮肤白化病(OCA)患者的视力均有所下降。本研究旨在评估低视力辅助器具对OCA患者的益处。
本研究纳入了在一家低视力诊所接受检查的77例4岁及以上的连续性OCA患者。分析了未矫正和最佳矫正视力(VA)、使用低视力设备时的VA、低视力辅助器具的类型以及屈光不正数据。
在77例OCA患者中,57%在4至15岁年龄组,43%在16岁及以上年龄组。就诊时,视力受损、严重视力受损和失明(使用世界卫生组织低视力标准)的百分比分别为52%、22%和25%。其中,39%的患者近视力为1米或更好。右眼和左眼等效球镜屈光不正均值的差异为-0.494屈光度(-1.686, 0.699;95%置信区间)。38.6%的患者在进行充分的屈光矫正后,视力显著提高超过1个对数最小分辨角对数行(<0.01)。使用低视力设备后,85.7%(n = 66)的参与者较好眼的视力提高到正常水平(6/18或更好),而7.8%的参与者仍处于失明类别。61%的人被处方使用望远镜以提高远视力,22%的人被处方使用手持放大镜以满足其需求。
低视力辅助器具可成功用于OCA患者的视觉康复,以满足他们的需求。