The reason I didn't pick this one was because the lady who replied me was totally unprofessional. What she mentioned was so simple... .I could imagine they won't be able to entertain us in timely manner if my child requires immediate attention, which is very crucial as this concerns her eyes' health. The one that my girl is now using is very professional, they would patiently explain to me the pros and cons of the lens, and what should I expect blah blah... I would say it is totally a pure luck if there's nothing wrong you wear their lens...if there's any problem, they're not professional ppl to help out.
I am curious to know why this lady would wear this type of overnight lenses for more than 10 years. Actually, it fits more for children when they're growing. When they grow up to a certain age either they're adults or they could handle daytime lenses, they should change to wear day time lenses which have less adverse effects on eyes.
I think letting children to wear daytime lenses at an age when they could handle daytime lenses are safer.... in my days I started to wear lenses since I was 16.............Furthermore regular check up is necessary during the course of wearing the overnight one. Hope these would reduce the adverse effect. But I would ask my optician to see what's his views.