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Study: No adverse effects observed for contact lens wear in patients with diabetes
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PHOENIX – A study comparing the physiologic and subjective responses to contact lens wear in subjects with and without diabetes found that the two groups had similar acceptance of contacts with no detectable adverse effects on vision or ocular health, according to a poster presentation here at Academy 2012.
The study included 12 patients with and 15 without diabetes who were matched for age (about 40 years) and oculo-visual characteristics, such as refraction, corneal and pupillary diameters, and IOP. All participants were given daily-wear contact lenses made of comfilcon A with high oxygen permeability.
Data were collected on these patients for 2 months, and primary outcome measures included visual acuity, higher-order aberrations, corneal hysteresis, corneal thickness, inferior tear meniscus and tear break-up time. Questionnaires were used to measure vision quality and comfort.
There were no significant differences between the two groups measured in any of the outcome categories; however, the authors did find that the patients with diabetes reported wearing the lenses for more hours per day than the other group (12.0 vs. 10.5 h/day; P < .05) and also reported more hours of wearing comfort than the other group (10.5 vs. 8.5 h/day; P < .05).
“The routine avoidance of contact lenses in diabetics should be reconsidered,” said the study authors, led by Elise Kramer, of the University of Montreal School of Optometry.