The first phase of the MiSight study was three years randomized control clinical trial. The results showed that MiSight slowed down myopia progression by 52% as measured by the gold standard of axial length.
You may think 52% reduction in myopia progression is not enough, and you would be correct. But every 1 diopter (4 steps of change) increase in myopia increases lifetime risk of myopia maculopathy by 67%. On the flip side, every 1 diopter reduction of myopia reduces lifetime risk of myopic maculopathy by 40%. Myopic maculopathy is one of the leading causes of blindness in the world, which is caused by you guessed it, high myopia.
MiSight Contact lens works by using two concentric treatments rings (dark purple rings in the diagram) on the peripheral part of the lens. These two rings focus the income light in front of the retina (back of the eye), triggering a optical myopia control mechanism of the eye.
In the MiSight study, the children wore the lenses for a minimum of six days a week and 10 hours a day, with the effectiveness of 52%reduction in myopia progression.
Researchers have shown that our children are likely to progresses once they become nearsighted. Therefore, our children are likely to benefit from the MiSight technology, and the sooner we start the more affective the myopia control effect will be. However, both child and parent we need to be fully committed and engaged with the idea of wearing contact lenses and the wearing schedule.
At our Myopia Treatment Center, we always present multiple options to our patients depending on specifics of the cases. Using advanced technology, we measured the front surfaces of the eye called the cornea together with the length of the eyeballs called the axial lengths , then we evaluation the data to see if there are risk of myopia progression with the parents, then a decision would be reached regarding specific options. The Night Lens aka Ortho-K is usually the preferred option by all parties involved.
At our clinic, we monitor myopia progression in our little patients using axial length measurement. Axial length measurement is the gold standard in myopia management. For most peoples, the length of their eye balls are anywhere between 22.00 to 25.00 mm. When the eyeball grow longer, myopia has gotten worse and more aggressive treatment is warranted.
In order to fit MiSight contact lens, eye doctors who specializes in myopia management go through additional rigorous certification courses before they can be qualified to fit and dispense MiSight. In addition, they would need to have the tool of the trade, namely to measure the axial length of the eye (the length of the eyeball from front to back) and a corneal topography. Without these important technologies, it is harder, though not impossible, to manage myopia progression accurately.