Amsler,Marc, Swiss ophthalmologist, 1891-1968.
Amsler chart - a 10-cm square divided into 5-mm squares upon which an individual may project a defect in the central visual field.
Amsler chart marker
Amsler corneal graft operation
Amsler scleral marker
Amsler test - projection of a visual field defect onto an Amsler chart.