bioptic
/ˈbaɪ.ɒptɪk/Definitions
1. noun
A small portable telescope used as a vision aid for people who are partially sighted or have limited vision, often worn in front of one eye.
“She uses a bioptic telescope to read street signs while driving.”
2. adjective
Relating to or using a bioptic telescope.
“Bioptic technology has greatly improved the lives of people with low vision.”