Comparison of Automated Refraction with and without Cycloplegia for Detection of Refractory Errors: A Cross-Sectional Study

  • Ch M Subramanyeswara Rao Associate Professor, Department of Opthalmology
  • M Sarada Devi Post-graduate student, Department of Opthalmology
  • R Thilagavathi Lecturer, Department of Biostatistics
Keywords: Automated, Ocular refraction, Retinoscopy


Background: Refraction is the most common eye problem among children. Refractory assessment is an essential visual
assessment tool.
Objectives: To compare the performance of automated refraction with and without cycloplegia for its agreement with conventional
cycloplegic retinoscopy.
Methods: A sample of 200 children between the age of 8 and 15 years attending an ophthalmology outpatient department of a
government medical college teaching hospital were assessed using conventional cycloplegic retinoscopy, automated refraction
with cycloplegia and without cycloplegia and the measurements compared.
Results: There was a tendency toward minus over correction in automated refraction without cycloplegia compared to automated
refraction with cycloplegia. There was good agreement between conventional cycloplegic retinoscopy and automated refraction
with cycloplegia. Automated refraction with cycloplegia has a reasonable sensitivity (70.2%) and specifi city (70.8%) for assessment
of refraction among children that is higher than automated refraction without cylcoplegia.
Conclusions: Automated refraction with cycloplegia can be used as an easy to use the method for refraction where skilled
human resources are not easily available to check for cycloplegic retinoscopy.

Author Biographies

Ch M Subramanyeswara Rao, Associate Professor, Department of Opthalmology

Rangaraya Medical College, Government General Hospital, Kakinada, Andhra Pradesh, India

M Sarada Devi, Post-graduate student, Department of Opthalmology

Rangaraya Medical College, Government General Hospital, Kakinada, Andhra Pradesh, India

R Thilagavathi, Lecturer, Department of Biostatistics

School of Public Health, SRM University, Kattankulathur, Chennai, Tamil Nadu, India


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