Noncycloplegic autorefraction tied to more myopic refractive error than cycloplegic autorefraction in young adults: Study

A mean difference of >0.25 D was seen in 46.8% of eyes. The lower and upper limits of agreement were −0.80 and 0.41 D, respectively. With univariate analysis, factors including age, degree of refractive error, accommodation amplitude, and distance phorias showed no impact on the average difference between cycloplegic autorefraction and noncycloplegic autorefraction. Yet, eyes with near exophoria (F2,120 = 6.63, p=0.0019) and Caucasian eyes (F3,121 = 2.85, p=0.040) exhibited the smallest paired differences. However, in the multivariate analysis, only near exophoria was associated with a lower mean difference. A significantly smaller proportion (34.9%) of eyes with near exophoria had a paired difference of −0.25 D or more compared with esophoria (50%) and orthophoria (65%; χ2 = 6.6, p=0.038). Noncycloplegic autorefraction results in more myopic refractive error than cycloplegic autorefraction in young adults.

Reference:

Khan, Hashim Ali OD, FAAO1,2∗; Tran, Huy MD, PhD2,3,4; Naduvilath, Thomas John PhD1,2; Tahhan, Nina BOptom, PhD1,2; Ha, Thao MD4; Sankaridurg, Padmaja BOptom, PhD2. Comparison between cycloplegic and noncycloplegic refraction in young adult myopes. Optometry and Vision Science 101(7):p 470-476, July 2024. | DOI: 10.1097/OPX.0000000000002169