面向所有学校的便携式视力筛查：对弱视患者和使用邦格特滤光片的正常人进行的遮盖HOTV视力筛查验证
Portable acuity screening for any school: validation of patched HOTV with amblyopic patients and Bangerter normals.
作者信息
Tsao Wu Maya, Armitage M Diane, Trujillo Claire, Trujillo Anna, Arnold Laura E, Tsao Wu Lauren, Arnold Robert W
机构信息
Alaska Blind Child Discovery, Alaska Children's EYE & Strabismus, 3500 Latouche #280, Anchorage, Alaska, 99508, USA.
出版信息
BMC Ophthalmol. 2017 Dec 4;17(1):232. doi: 10.1186/s12886-017-0624-y.
BACKGROUND
We needed to validate and calibrate our portable acuity screening tools so amblyopia could be detected quickly and effectively at school entry.
METHODS
Spiral-bound flip cards and download pdf surround HOTV acuity test box with critical lines were combined with a matching card. Amblyopic patients performed critical line, then threshold acuity which was then compared to patched E-ETDRS acuity. 5 normal subjects wore Bangerter foil goggles to simulate blur for comparative validation.
RESULTS
The 31 treated amblyopic eyes showed: logMAR HOTV = 0.97(logMAR E-ETDRS)-0.04 r2 = 0.88. All but two (6%) fell less than 2 lines difference. The five showed logMAR HOTV = 1.09 ((logMAR E-ETDRS) + .15 r2 = 0.63. The critical-line, test box was 98% efficient at screening within one line of 20/40.
CONCLUSION
These tools reliably detected acuity in treated amblyopic patients and Bangerter blurred normal subjects. These free and affordable tools provide sensitive screening for amblyopia in children from public, private and home schools. Changing "pass" criteria to 4 out of 5 would improve sensitivity with somewhat slower testing for all students.
背景
我们需要对便携式视力筛查工具进行验证和校准，以便在儿童入学时能够快速有效地检测出弱视。
方法
将螺旋装订的活页卡和带有临界线的下载pdf环绕HOTV视力测试盒与一张匹配卡相结合。弱视患者先进行临界线测试，然后进行阈值视力测试，之后将其与遮盖眼的E-ETDRS视力进行比较。5名正常受试者佩戴邦格特滤光镜以模拟模糊进行对比验证。
结果
31只接受治疗的弱视眼显示：logMAR HOTV = 0.97（logMAR E-ETDRS）-0.04，r2 = 0.88。除两只眼睛（6%）外，所有眼睛的差异均小于2行。5名正常受试者显示logMAR HOTV = 1.09（（logMAR E-ETDRS）+ 0.15，r2 = 0.63。临界线测试盒在筛查20/40视力一行范围内的效率为98%。
结论
这些工具能够可靠地检测接受治疗的弱视患者的视力以及模拟模糊的正常受试者的视力。这些免费且经济实惠的工具为公立、私立和家庭学校的儿童弱视提供了敏感的筛查。将“通过”标准改为五题答对四题将提高敏感性，但所有学生的测试速度会稍慢一些。
Zotero 插件