AMPLITUDE OF ACCOMMODATION IN PEOPLE WITH TYPE 1 DIABETES

Title AMPLITUDE OF ACCOMMODATION IN PEOPLE WITH TYPE 1 DIABETES
Author, Co-Author Adnan Adnan, Nathan Efron, Katie Edwards, Ankit Mathur, Marwan Suheimat, Nicola Pritchard, David Atchison
Topic
Year
2013
Day
Program Number
135200
Room
Room 6C
Affiliation
Queensland University of Technology, School of Optometry
Abstract PURPOSE:
People with diabetes have accelerated age related biometric ocular changes compared with people without diabetes. We determined the effect of Type 1 diabetes on amplitude of accommodation.

METHODS:
There were 18 participants (31.5 ± 8.6 years) with type 1 diabetes and 16 (31.5 ± 6.7 years) age-matched participants without diabetes. There was no significant difference in the mean equivalent refractive error and visual acuity between the two groups. Amplitude of accommodation was measured using two techniques: objective by measuring the accommodative response to a stimulus in a COAS wavefront aberrometer (Wavefront Sciences), and subjective with a Badal hand optometer (Rodenstock). The influences of age and diabetes duration (DiabDur) on amplitude of accommodation were analyzed using multiple regression analysis.

RESULTS:
Both objective and subjective amplitude of accommodation showed decrease with age in both groups. The objective amplitudes in participants with and without diabetes were significantly different (p < 0.05) with means 3.0 +/- 1.3 D and 5.4 +/- 1.5 D, respectively; corresponding subjective amplitudes were significantly different (p < 0.05) with means 4.6 +/- 1.5 D and 6.9 +/- 2.2 D, respectively.

CONCLUSIONS:
Both objective and subjective techniques showed lowered amplitude of accommodation in participants with type 1 diabetes when compared with age-matched controls. The loss was affected strongly by duration of diabetes. The results suggest that individuals with diabetes will experience presbyopia considerably earlier in life than people without diabetes, possibly due to metabolic changes in the crystalline lens.

Affiliation of Co-Authors Queensland University of Technology, School of Optometry, Queensland University of Technology, School of Optometry, Queensland University of Technology, School of Optometry, Queensland University of Technology, School of Optometry, Queensland University of Technology, School of Optometry, Queensland University of Technology, School of Optometry
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