- "Arlt's line": Linear scar present in sulcus subtarsalis during Chlamydia trachomatis infection.
- "Arlt's operation": Transplantation of eyelashes back from the edge of the eyelid for treatment of distichiasis.
- "Arlt's syndrome": A contagious eye infection caused by Chlamydia trachomatis.
- "Arlt's triangle": keratic precipitates distributed in a wedge-shaped area on the inferior corneal endothelium.
Source : http://en.wikipedia.org/wiki/Carl_Ferdinand_von_Arlt