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Study: Dark-adapted refraction a good alternative to cycloplegic
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SAN DIEGO – A study reported here at Optometry’s Meeting showed a high correlation in the spherical component among dark-adapted autorefraction, cycloplegic retinoscopy and cycloplegic subjective refraction.
While cycloplegic refraction has been considered the gold standard, the pupil dilation causes discomfort and loss of accommodation for patients, Meehan and colleagues reported in a poster.
Objective measures of accommodative response using an open-field autorefractor were obtained in 23 young adult subjects after 5 minutes of dark adaptation. Retinoscopy and subjective refraction were performed before and after cycloplegia. A high correlation among the three techniques was seen, according to the poster.
“The mean difference in spherical component between dark-adapted autorefraction and cycloplegic retinoscopy was -0.34 D, while mean difference in spherical component between dark-adapted autorefraction and cycloplegic subjective refraction was -0.25 D,” the poster read.
“Dark-adapted refraction provides a reliable alternative to cycloplegic refraction in young adults when cycloplegia is not a clinical option,” the authors concluded.