Kauser Farnaz, Gupta Yogesh, Amitava Abadan K, Saxena Juhi, Raza S Aisha, Masood Anam, Alam Md Shahid
Institute of Ophthalmology, Jawaharlal Nehru Medical College, AMU, Aligarh, Uttar Pradesh, India.
Aditya Birla Sankara Nethralaya, Kolkata, West Bengal, India.
Indian J Ophthalmol. 2020 Nov;68(11):2458-2461. doi: 10.4103/ijo.IJO_229_20.
In 1-12 years old children, we assessed correlation, regression, and agreement between spherical equivalents (SE) obtained on Mohindra's near retinoscopy (MNR) and the post cycloplegic refraction (PCRef), performed 72 h after a cycloplegic refraction (CRef) using cyclopentolate 1% drops.
In this prospective comparative study, Mohindra's near retinoscopy (MNR) was performed on 202 eyes of 101 children, from 50 cm with a streak retinoscope, in a dimly lit room, subtracting 1.25 from the trial lens used for neutralization, to obtain the final refraction. Subsequently we undertook CRef, half-hour after instilling 1% cyclopentolate, with a PCRef 72 h later. All refractive data were converted to SE for evaluation. We compared the SEs using correlation, linear regression, and agreement (Bland-Altman graphic analysis) and paired t-test. Significance was set at P ≤ 0.05.
The mean SE on MNR was 1.71 ± 2.49 D compared to 1.43 ± 2.42 D on PCRef. A significant correlation with r = 0.97 (r= 0.94, P < 0.001) existed. Agreement analysis suggested that MNR overestimates hypermetropia and underestimates myopia each by 0.3 D than the standard procedure of CRef-PCRef. The regression analysis suggested that SE on PCRef is 95% of that on MNR, less 0.20.
Our study suggests that MNR offers single point refraction very similar to CRef-PCRef, and may be considered as a viable option more often.
在1至12岁儿童中，我们评估了使用1%托吡卡胺滴眼液进行睫状肌麻痹验光（CRef）72小时后，通过莫欣德拉近距检影法（MNR）获得的等效球镜度（SE）与睫状肌麻痹后验光（PCRef）之间的相关性、回归关系和一致性。
在这项前瞻性比较研究中，对101名儿童的202只眼进行莫欣德拉近距检影法（MNR），在昏暗房间里使用带状检影镜从50厘米处进行检查，从用于中和的试验镜片度数中减去1.25，以获得最终验光结果。随后，在滴入1%托吡卡胺半小时后进行CRef，并在72小时后进行PCRef。所有屈光数据均转换为SE进行评估。我们使用相关性分析、线性回归分析和一致性分析（布兰德-奥特曼图分析）以及配对t检验比较SE。显著性设定为P≤0.05。
MNR的平均SE为1.71±2.49 D，而PCRef的平均SE为1.43±2.42 D。两者存在显著相关性，r = 0.97（r = 0.94，P < 0.001）。一致性分析表明，与CRef-PCRef的标准程序相比，MNR高估远视和低估近视各0.3 D。回归分析表明，PCRef的SE是MNR的SE的95%，少0.20。
我们的研究表明，MNR提供的单点验光结果与CRef-PCRef非常相似，可能更常被视为一种可行的选择。
