Nayak B K, Ghose S, Singh J P
Br J Ophthalmol. 1987 Jan;71(1):73-5. doi: 10.1136/bjo.71.1.73.
The manifest (dry) and cycloplegic refractions of 50 eyes of 25 patients aged 8 to 28 years were studied on the Nikon Auto Refractometer NR-1000F (AR) and compared with the results of clinical refraction (CR) under homatropine and the final clinical acceptance on postmydriatic testing. Only patients in the younger age groups with low to moderate refractive errors were included in this study; high myopes and hypermetropes and patients with aphakia and mixed astigmatism were excluded. The degree of agreement for spherical equivalents, sphere components, and cylinder components was analysed separately for both cycloplegic and manifest refractions on the AR and CR. The results showed that the fixation target in the NR-1000F induces significant instrument myopia during manifest refraction in the younger patients with lower refractive errors. We recommend that caution should be exercised in interpreting manifest refractions on the AR, especially in younger patients. A cycloplegic automatic refraction would be acceptably accurate.
对25例年龄在8至28岁患者的50只眼睛进行了尼康NR - 1000F自动验光仪（AR）的显（干）性和睫状肌麻痹验光，并与后马托品下临床验光（CR）结果以及散瞳后最终临床验收结果进行了比较。本研究仅纳入了低至中度屈光不正的年轻年龄组患者；高度近视和远视患者以及无晶状体和混合散光患者被排除在外。分别分析了AR和CR上睫状肌麻痹验光和显验光的球镜等效度、球镜成分和柱镜成分的一致性程度。结果表明，在屈光不正较低的年轻患者进行显验光时，NR - 1000F中的注视目标会导致明显的器械性近视。我们建议在解释AR上的显验光时应谨慎，尤其是在年轻患者中。睫状肌麻痹自动验光将具有可接受的准确性。
