Amsler (Hermann Amsler)

Hermann Amsler was a Swiss mathematician and astronomer known for his contributions to the fields of geometry and optics. He is particularly recognized for the Amsler grid, a simple tool used in vision testing to help detect visual distortions, often linked to conditions like macular degeneration. The grid consists of straight lines arranged in a square pattern, allowing individuals to identify irregularities in their vision when looking at the grid. Amsler's work has significantly aided in the diagnosis of eye diseases, making his contributions important in both mathematics and healthcare.