Saber Moghadam AliAkbar, Alizadeh Reza, Zarei-Ghanavati Mehran
Khatam Eye Research Center and Hospital, Mashhad University of Medical Sciences (MUMS) , Mashhad , Islamic Republic of Iran .
Strabismus. 2013 Dec;21(4):230-4. doi: 10.3109/09273972.2013.851259.
To evaluate the sensitivity of photoscreener Plusoptix S08 in screening strabismus.
Eighty-three consecutive patients were examined by a single expert to determine the type and amount of the deviation. Then photoscreening was done for all the patients via Plusoptix S08 photoscreener (Plusoptix GmbH, Nuremberg, Germany) on the same day, using the default software for referring the patients.
The age range was between 6 months and 40 years. The overall sensitivity of the device to detect strabismus is 70%; it was 25% for exophoria, 67% for esotropia, 73% for exotropia, and 89% in patients who had mixed strabismus. Regarding degree of deviation, sensitivity was 46% in deviations less than 30 prism diopters (PD) and rises while the degree of deviation increases.
Our research shows that Plusoptix should not be used solely in evaluating strabismus because its sensitivity decreases significantly specially in esotropic patients with less than 30 PD deviations.
评估Plusoptix S08视力筛查仪在斜视筛查中的敏感性。
由一位专家对83例连续患者进行检查，以确定斜视的类型和程度。然后在同一天，通过Plusoptix S08视力筛查仪（德国纽伦堡Plusoptix有限公司）对所有患者进行视力筛查，使用默认软件转诊患者。
年龄范围在6个月至40岁之间。该设备检测斜视的总体敏感性为70%；外隐斜为25%，内斜视67%，外斜视73%，混合性斜视患者为89%。关于斜视度数，斜视度数小于30三棱镜度（PD）时敏感性为46%，且随着斜视度数增加而升高。
我们的研究表明，Plusoptix S08视力筛查仪不应用于单独评估斜视，因为其敏感性显著降低，特别是对于斜视度数小于30 PD的内斜视患者。
