The story
Developed by the Swiss-born ophthalmologist Edmund Landolt.
Etymology from Wiktionary, CC BY-SA 4.0.
Landolt C
Today it means: A ring with a gap in it, used as a symbol in vision tests. Full definition →
Today it means: A ring with a gap in it, used as a symbol in vision tests. Full definition →
Developed by the Swiss-born ophthalmologist Edmund Landolt.
Etymology from Wiktionary, CC BY-SA 4.0.