Landolt C
English
Etymology
Developed by the Swiss-born ophthalmologist Edmund Landolt.
Noun
Landolt C (plural Landolt Cs)
![](Images/wiktionary/Landolt_C.svg.png.webp)
Landolt C optotypes in various sizes and orientations
- A ring with a gap in it, used as a symbol in vision tests.
Synonyms
- Landolt broken ring
- Landolt ring
Hypernyms
- optotype