JHSM
Journal of Health Sciences and Medicine

Journal of Health Sciences and Medicine (JHSM) is an unbiased, peer-reviewed, and open access international medical journal. The Journal publishes interesting clinical and experimental research conducted in all fields of medicine, interesting case reports, and clinical images, invited reviews, editorials, letters, comments, and related knowledge.

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Original Article
Comparison of subjective and objective accommodation amplitude values
Abstract
Aims: Comparison of accommodation amplitude values measured using autorefractometer, push up and minus lens technique. Material and
Methods: In this randomized, prospective study, both eyes of 75 healthy individuals between the ages of 15 and 40 were included in the study. They were divided into 5 groups as 15-20 age group 1, 21-25 age group 2, 26-30 age group 3, 31-35 age group 4, 36-40 age group 5 To measure the accommodation amplitude, the minus lens and push up technique were used as subjective methods, and the autorefractometer Tonoref III was used as the objective. The correlation between the measurement methods and the reproducibility of the autorefractory measurements were evaluated. In addition, changes in accommodation measurements with age, gender and pupil diameter changes were investigated.
Results: The mean accommodation amplitude values were 4.86±1.73 D in the minus lens technique, 8.79±4.58 D in the push up technique, and 2.77±1.93 D in the autorefractometer measurement. Autorefractometer accommodation amplitude values were found to decrease significantly with age (p=0.000). It was seen that the correlation between autorefractometry and subjective methods, minus lens and push up was significant and correlated (p=0.000, r=0.47, p=0.001, r=0.28, respectively). Intraclass correlation coefficients of Tonoref III accommodation amplitude were found to be 0.935.
Conclusion: Objective accommodation amplitude measurements made using Tonoref III were found to be correlated with subjective methods, but lower values were detected compared to subjective methods.

Keywords : Minus lens technique, push up technique, amplitude of accommodation

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Article available in :
Volume 6, Issue 2, 2023
Page : 263-267
https://doi.org/10.32322/jhsm.1225628
Article Information
Received : 28 Ara 2022
Accepted : 18 Oca 2023
Published : 27 Mar 2023
Corresponding Author :

Şerife Gülhan Konuk: Department of Ophthalmology, Faculty of Medicine, Tokat Gaziosmanpaşa University Tokat, Turkey

[email protected]
Citation : Konuk ŞG, Kılıç R, Kuyucu E. Comparison of subjective and objective accommodation amplitude values. J Health Sci Med 2023; 6(2): 263-267.

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