26. January 2016 11:30
According to the results of a study just published in Optometry & Vision Science, contact lenses with positive spherical aberration included in their design slow down axial growth, which can be used to control short-sightedness in children.
The study was carried out mostly on Asian patients aged 8-11, who wore either standard contact lenses or daily disposable ones with positive spherical aberration for a period of 12-24 months. What is more, about 80 of the patients, wearing a selected brand of daily disposable contact lenses, were followed up for additional 18 months.
The data gathered during the study revealed a strong correlation between lens type and axial elongation, as its growth was slower in the group of subjects wearing lenses with positive spherical aberration. What is more, the effects of the lenses were not temporary, which means that the lenses affect the ultimate level of myopia in a given patient.
No unexpected adverse events were reported during the study and the lenses were found to be as safe as regular contact lenses.