Department of Ophthalmology, Ege University Faculty of Medicine, İzmir, Turkey.
Can J Ophthalmol. 2011 Apr;46(2):153-7. doi: 10.3129/i10-110.
To compare refraction measurements of young patients obtained using Plusoptix S04 with those obtained using cycloplegic retinoscopy.
Cohort study.
Data were collected from 64 patients (128 eyes), aged 2-19 years.
All eyes underwent photorefraction using Plusoptix S04 with or without cycloplegia and cycloplegic retinoscopy. Eyes with a maximum spherical and cylinder range of 7.00 to +5.00 were excluded from the study.
The difference in spherical equivalents between Plusoptix S04 without cycloplegia and cycloplegic retinoscopy was more than ±0.50 D in 70.2% of the eyes. In 100 eyes (78.1%), photorefraction underestimated the hyperopic refractive error. The cylinder powers determined by Plusoptix S04 and cycloplegic retinoscopy were similar. The difference in the spherical equivalents between Plusoptix S04 with cycloplegia and cycloplegic retinoscopy was ±0.50 D in 89.8% of the eyes. In 96 eyes (75%), photorefraction with cycloplegia overestimated the hyperopic refractive error. The difference in cylindrical power determined using Plusoptix S04 with cycloplegia and cycloplegic retinoscopy was statistically significant (paired t test, p <0.009).
The statistically significant difference in spherical equivalent values obtained using Plusoptix S04 with or without cycloplegia and cycloplegic retinoscopy suggests that Plusoptix S04 is more in evaluating the cylinder power and axis in young patients. Our results also suggest that Plusoptix S04 is not an accurate tool to estimate the refraction in children.
比较使用 Plusoptix S04 对年轻患者进行屈光测量的结果与睫状肌麻痹检影验光的结果。
队列研究。
数据来自 64 名（128 只眼）年龄在 2 至 19 岁的患者。
所有眼均接受了使用 Plusoptix S04 进行的非睫状肌麻痹下的屈光检查和睫状肌麻痹检影验光。最大球镜和柱镜范围在 7.00 至 +5.00 的眼被排除在研究之外。
在 70.2%的眼中，非睫状肌麻痹下的 Plusoptix S04 与睫状肌麻痹检影验光的球镜屈光度差值大于±0.50 D。在 100 只眼中（78.1%），屈光检查低估了远视屈光不正。Plusoptix S04 和睫状肌麻痹检影验光确定的柱镜力相似。在 89.8%的眼中，睫状肌麻痹下的 Plusoptix S04 与睫状肌麻痹检影验光的球镜屈光度差值在±0.50 D 以内。在 96 只眼中（75%），睫状肌麻痹下的屈光检查高估了远视屈光不正。使用睫状肌麻痹下的 Plusoptix S04 确定的柱镜力与睫状肌麻痹检影验光的差值具有统计学意义（配对 t 检验，p<0.009）。
Plusoptix S04 进行的无睫状肌麻痹和睫状肌麻痹下的屈光测量结果在球镜屈光度方面存在统计学显著差异，提示 Plusoptix S04 在评估年轻患者的柱镜力和轴位方面更有优势。我们的结果还表明，Plusoptix S04 不是评估儿童屈光的准确工具。
