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Hindi Comparison of Subjective with Objective Measure of Amplitude of Accommodation with Age Matched Hofstteters Normative Data
*Corresponding Author: Gomathy Boobathy, Department of Optometry, Bharathiar University, Tamil Nadu, India, Email: gomathy171297@gmail.comReceived Date: Aug 03, 2021 / Accepted Date: Aug 17, 2021 / Published Date: Aug 24, 2021
Citation: Boobathy G (2021) Comparison of Subjective with Objective Measure of Amplitude of Accommodation with Age Matched Hofstteter’s Normative Data. Optom Open Access 6: 152.
Copyright: © 2021 Boobathy G. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Aim: To analyze the comparison of subjective with objective measure of amplitude of accommodation with age matched hofstetter’s formula.
Purpose: Dynamic retinoscopy is an objective technique for assessing maximum accommodative responsivity. The present study examined the reliability of this procedure when measuring the amplitude of accommodation.
Methods: The amplitude of accommodation was measured in 57 subjects between 17 and 22 years of age using Dynamic Retinoscopy and a subjective method, Modified Pull Away. The repeatability between the methods were determined using the mean difference.
Results: Dynamic Retinoscopy showed the lowest mean value of Amplitude of Accommodation (average=7.71 D) whereas the mean value for Modified Pull Away was 9.80 D. Average for Dynamic Retinoscopy-Modified Pull Away was 2.10 D.
Conclusion: The Dynamic Retinoscopy technique provides a more veridical measurement of the Amplitude of Accommodation because it avoids the over-estimation resulting from the depth-of-field. Moreover, the Dynamic Retinoscopy technique exhibited higher reproducibility when compared with subjective methods.
