what do you call those lenses that you wear them at night and take them off in the morning to have 20/20 vision ? And does those lenses slowly improve your retina or vision ? Where do you buy it ? Thanks !
They are called orthokeratology lens (O.K. lens for short).
They re-shape your cornea while you sleep, using reverse geometry lens design. The retina is not affected.
Not every optometrist believes this philosophy. Fitting these lenses require special training so you will have to consult an O.K. practitioner-optometrist.
Personally, I will not support O.K. lens. The benefits do not outweigh the risks.
Hope this helps
They re-shape your cornea while you sleep, using reverse geometry lens design. The retina is not affected.
Not every optometrist believes this philosophy. Fitting these lenses require special training so you will have to consult an O.K. practitioner-optometrist.
Personally, I will not support O.K. lens. The benefits do not outweigh the risks.
Hope this helps
Source(s):
BSc. Optometry (Hons)
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