Assertion: rigid gas permeable lens | /r/MadeOf | same durable material
Facets:
Source sentences:
text: Scleral lenses are a type of gas permeable lens that are made from the same durable material and have the same benefits associated with regular gas permeable lenses.
text: Scleral lenses are a type of gas permeable lens that are made from the same durable material and have the same benefits associated with regular gas permeable lenses.