contact lens
noun /ˈkɒntækt lenz/
  /ˈkɑːntækt lenz/
(also informal contact, lens)
 [usually plural]- a small round piece of thin plastic that you put on your eye to help you see better- to wear contact lenses
 Oxford Collocations Dictionaryadjective- gas-permeable
- hard
- soft
- …
 - have in
- wear
- put in
- …