June 2015
Volume 56, Issue 7
ARVO Annual Meeting Abstract  |   June 2015
Effect of Age on Amplitude of Accommodation in a Swedish Population
Author Affiliations & Notes
  • Baskar Theagarayan
    Department of Medicine and Optometry, Linnaeus University, Kalmar, Sweden
  • Yelene Sorman
    Department of Medicine and Optometry, Linnaeus University, Kalmar, Sweden
  • Footnotes
    Commercial Relationships Baskar Theagarayan, None; Yelene Sorman, None
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science June 2015, Vol.56, 6012. doi:
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      Baskar Theagarayan, Yelene Sorman; Effect of Age on Amplitude of Accommodation in a Swedish Population. Invest. Ophthalmol. Vis. Sci. 2015;56(7 ):6012.

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      © ARVO (1962-2015); The Authors (2016-present)

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Purpose: The purpose of this study was to determine the relationship between age and amplitude of accommodation in a Swedish population and also to investigate the age of onset of Presbyopia in this population.

Methods: All the measurements were performed in a Eye Clinic in Sweden. Subjects living in and around southern part of Sweden were recruited for this study. All the subjects had at least 20/20 best corrected visual acuity and normal binocular vision. The sample size was 103 subjects aged between 9 and 68 years. The amplitude of accommodation was measured using the push-up and the push-down method with a Royal Air Force (RAF) ruler. The ruler has both a metric scale in centimeters and a dioptric scale. The subjects were asked to read letters of N5 print size and report first sustained blur in push-up method and first sustained clear in push-down method. The subjects had their best correction in place during the measurements. All the measurements were done both monocularly (Right eye-OD and Left eye-OS) and binocularly (OU).

Results: Regression analysis showed a significant decrease in the amplitude of accommodation with age (p < 0.05). Age of onset of presbyopia (less than 5 D amplitude) was 39 and 41 years based on monocular and binocular values respectively in this sample. There was no significant difference in the amplitude values between OD and OS (p > 0.05). Binocular amplitude values were higher than monocular values. There was a significant difference between push-up and push-down values (p < 0.05). Compared to Hofstetter's results, this study showed lower values than expected.

Conclusions: Amplitude of accommodation decreased with age as suggested by previous studies. At the age of 54 years, the amplitude reached around 0.85 D and remained constant after that. Age of onset of presbyopia in this Swedish population was similar to other European population.


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