Comparison of Refined Cylindrical Axis by Straddling and Autorefractometer: A Clinical Study

Abstract

Objective: To compare two cylindrical refinements i.e. autorefractometer and straddling by taking patients response.

Method: Study protocols was approved by Ethical Review Board of College of Ophthalmology and Allied Vision Science, Lahore. A proforma based nonrandomized interventional method of study was conducted in National Eye Centre Lahore from August 2025 to September 2025. The size of obtained sample was 91 that included young healthy adults of age 18-35 having 1.00-3.00 D of astigmatism. Auto refraction, subjective refraction and then straddling was performed and then response was recorded by taking consent. Exclusion criteria for this study was individual with any ocular pathology. P-value was calculated by using Paired sample T test. Value of ˂0.05 was considered significant.

Results: No statistically visible significant differences were noted in between the methods (p-value > 0.05). Although minor variations exist in axis measurements, patients' satisfaction remained constant, showing that the interchangeability of the techniques was valid. These results agree with prior studies that stressed the flexibility yet accuracy needed in refractive assessment tools.

Conclusion: The straddling technique offers a reliable, time-efficient alternative to auto-refractometers for cylindrical axis refinement, ensuring comparable accuracy and patient satisfaction.