Contact Lenses Better than Glasses at Slowing Down Myopia Progression

by Joel Harrison 6. August 2012 08:30

Contact Lenses Better than Glasses at Slowing Down Myopia Progression

Recent studies have shown that the peripheral retina and its refractive status can affect how fast myopia can develop in a patient. To gain more insight into the process, several researchers from New Zealand decided to conduct a study comparing the effects of using glasses and contact lenses on myopia progression.

The study included ten myopic individuals (aged 19-29), whose refractive errors ranged from -5.00 D to -8.00 D. During the trial, the researchers carried out several eye tests, precisely measuring different visual parameters and comparing the results obtained when the subjects wore glasses and contact lenses.

The conclusion that the researchers drew was that correcting short-sightedness with glasses resulted in hyperopic defocus in the peripheral retina, whereas the application of contact lenses in the same patients led to myopic defocus in the peripheral retina. Taking into account the results of previous studies (suggesting that myopic defocus in the peripheral retina results in slower myopia progression), the New Zealand researchers concluded that myopia should progress more slowly in patients wearing contact lenses than in those using conventional glasses.

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Health | Research

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