Paysse Evelyn A, Camejo Larissa, Hussein Mohamed A W, Coats David K
Department of Opthalmology, Cullen Eye Institute, Houston, TX, USA.
J AAPOS. 2004 Aug;8(4):332-7. doi: 10.1016/j.jaapos.2004.02.004.
To evaluate the accuracy of a parent-administered visual acuity test, using the electronic visual acuity tester (EVA) (JAEB Center, Tampa, FL) and evaluate its use as a means to improve efficiency of office acuity testing.
This was a prospective experimental study. Part I: Sixty-four children had their visual acuity determined using the EVA, first by their parents and then by an ophthalmic technician. Acuity scores were compared. Part II: Forty-four other children were randomly assigned to one of 2 groups. Group A (parent-prescreen) children had their visual acuity determined first by the parents using the EVA. The visual acuity result in that child was then rechecked by the technician using the Reinforcement Phase and Phase 2 of the Amblyopia Treatment Study (ATS) visual acuity testing protocol. Group B (full ATS protocol) children had their acuity determined by the technician using the full ATS protocol. The number of optotypes presented by the technician in order to determine the acuity in each group was compared.
Part I: Reliability of parent-determined visual acuity scores was high (r = 0.91 and 0.81 for right eyes (OD) and left eyes (OS), respectively), with 93% of right eye parent scores and 85% of left eye parent scores within 0.11 logarithm of minimal angle of resolution (logMAR) units (ie, within one line of vision) of the technician score. Part II: The parent prescreen group (Group A) required presentation of 66% fewer optotypes to the OD and 68% fewer optotypes to the OS than the full ATS protocol group (Group B) (OD: P = 5.4 x 10(-18); OS: P = 6.5 x 10(-18)).
Visual acuity testing results by parents using the EVA are reliable. Electronic visual acuity prescreening by parents reduces the number of optotype presentations required to be shown by the technician to accurately determine acuity. Use of a parent-assisted screening system in the waiting room may translate to increased office efficiency.
使用电子视力测试仪（EVA）（位于佛罗里达州坦帕市的JAEB中心）评估家长进行的视力测试的准确性，并评估其作为提高门诊视力测试效率手段的实用性。
这是一项前瞻性实验研究。第一部分：64名儿童首先由其家长使用EVA测定视力，然后由眼科技术人员测定。比较视力得分。第二部分：另外44名儿童被随机分为两组。A组（家长预筛查）儿童首先由家长使用EVA测定视力。然后，技术人员使用弱视治疗研究（ATS）视力测试方案的强化阶段和第二阶段对该儿童的视力结果进行重新检查。B组（完整ATS方案）儿童的视力由技术人员使用完整的ATS方案测定。比较技术人员为确定每组视力而呈现的视标数量。
第一部分：家长测定的视力得分可靠性较高（右眼（OD）和左眼（OS）的r分别为0.91和0.81），93%的右眼家长得分和85%的左眼家长得分在技术人员得分的最小分辨角对数（logMAR）单位的0.11以内（即，在一行视力范围内）。第二部分：家长预筛查组（A组）与完整ATS方案组（B组）相比，右眼需要呈现的视标数量减少66%，左眼减少68%（OD：P = 5.4×10⁻¹⁸；OS：P = 6.5×10⁻¹⁸）。
家长使用EVA进行的视力测试结果可靠。家长进行电子视力预筛查可减少技术人员为准确测定视力所需呈现的视标数量。在候诊室使用家长辅助筛查系统可能会提高门诊效率。
