ISLAMABAD: Programmable electronic glasses help improve vision in children with a lazy eye just as well as the more traditional treatment using eye patches, according to research presented at AAO 2015, the 119th Annual Meeting of the American Academy of Ophthalmology.
Getting children to accept treatment for a lazy eye can be hard.
Lazy eye, also called amblyopia, remains the most common cause of visual impairment in children.
Amblyopia is poor vision in an eye that did not develop normally during early childhood. It can occur when one eye is much more nearsighted than the other, or when one eye wanders or strays inward.
The child needs to receive treatment by the age of 8 or so while their eyes and brain are still developing to prevent blindness in the weaker eye.
Unfortunately, it is difficult for both parents and ophthalmologists to persuade children to comply with lazy eye treatments like eye patches or medicated drops, due to discomfort and social stigma.
A recent study found that 1 in 4 children feel anxious before using eye drops, and nearly 15% refuse to take them at all.
Both eye drops and eye patches work based on the occlusion method, by blocking vision in the eye with the best sight, and so forcing the brain to rely on the so-called lazy eye.
During the process, vision improves, though many children will still need glasses to correct their eyesight.
In comparison, the specially designed electronic glasses combine vision correction and occlusion. The lenses can be filled to fit a child's vision prescription.
It is the main cause of monocular (one-eye) visual impairment among young and middle-aged adults
Early treatment is recommended, but can help if carried out up to age 14 or even 17.
Because the lenses are liquid crystal display (LCD), they can also be programmed to turn opaque, occluding vision in the left or right eye for different time intervals, acting like a digital patch that flickers on and off.
This "digital patch" is the first new effective treatment for lazy eye in half a century.
Researchers at the Glick Eye Institute at Indiana University recently tested the effectiveness of occlusion glasses compared with eye patches in a randomized clinical study.