Corrective lenses
Topic: Category
From Wikipedia - Reading time: 1 min
A corrective lens is a lens worn on or before the eye. They are used to treat myopia, hypermetropia, astigmatism, and presbyopia.
Licensed under CC BY-SA 3.0 | Source: https://en.wikipedia.org/wiki/Category:Corrective_lenses9 views | ↧ Download as ZWI file
EncycloReader
is supported by the 
KSF