Kara Caner, Petriçli İkbal Seza
J Pediatr Ophthalmol Strabismus. 2017 Sep 1;54(5):311-318. doi: 10.3928/01913913-20170329-01. Epub 2017 May 17.
To evaluate the effectiveness of the Shin-Nippon NVision-K 5001 autorefractometer (Rexxam Co. Ltd., Osaka, Japan) (also branded as the Grand Seiko WR-5100K; Grand Seiko Co. Ltd., Hiroshima, Japan) based on the open-field refractometry principle in refractive measurements of preschool children and to determine its ability to eliminate accommodation adequately.
The refractive results of 114 preschool children who presented to the ophthalmology outpatient department for screening were evaluated. The measurements were obtained before and after cycloplegia with the Shin-Nippon NVision-K 5001 autorefractometer and after cycloplegia with retinoscopy, which is the gold standard. The results underwent vectorial transformation to produce the spherical equivalent (M) and two Jackson cross-cylinder (J0 and J45) values. All results were then subjected to statistical analysis. The difference between the measurements was evaluated with repeated measures analysis of variance.
Included in the study were 106 preschool children (51 boys and 55 girls). The mean age was 5.3 ± 0.9 years (range: 3 to 6 years). Although statistically significantly more myopic results were obtained with non-cycloplegic measurements using the Shin-Nippon NVision-K 5001 autorefractometer (P < .001), no difference was observed in cylindrical values (P > .05). Cycloplegic J0 measurements were significantly lower (P < .001), but no difference was found between J45 values before and after cycloplegia (P > .05).
The Shin-Nippon NVision-K 5001/Grand Seiko WR-5100K open-field autorefractometer seems to be inadequate in eliminating accommodation in childhood. Measurements under cycloplegia continue to be the best method to ensure accurate results. [J Pediatr Ophthalmol Strabismus. 2017;54(5):311-318.].
基于开放视野验光原理，评估日本大阪瑞可萨姆公司生产的新日本NVision-K 5001自动验光仪（也被称为日本广岛精工株式会社生产的Grand Seiko WR-5100K）在学龄前儿童屈光测量中的有效性，并确定其充分消除调节的能力。
对114名到眼科门诊进行筛查的学龄前儿童的屈光结果进行评估。使用新日本NVision-K 5001自动验光仪在睫状肌麻痹前后进行测量，并在睫状肌麻痹后使用作为金标准的检影法进行测量。对结果进行矢量变换以得出等效球镜度（M）和两个交叉柱镜值（J0和J45）。然后对所有结果进行统计分析。用重复测量方差分析评估测量值之间的差异。
该研究纳入了106名学龄前儿童（51名男孩和55名女孩）。平均年龄为5.3±0.9岁（范围：3至6岁）。尽管使用新日本NVision-K 5001自动验光仪进行非睫状肌麻痹测量时获得的近视结果在统计学上显著更多（P <.001），但柱镜值未观察到差异（P>.05）。睫状肌麻痹后的J0测量值显著更低（P <.001），但睫状肌麻痹前后的J45值之间未发现差异（P>.05）。
新日本NVision-K 5001/Grand Seiko WR-5100K开放视野自动验光仪在消除儿童调节方面似乎不足。睫状肌麻痹下的测量仍然是确保准确结果的最佳方法。[《小儿眼科与斜视杂志》。2017；54(5)：311 - 318。]
