- Category : 1882-births
- Type : GP
- Profile : 6/2 - Role Model / Hermit
- Definition : Split - Large
- Incarnation Cross : LAX The Alpha 1
German ophthalmologist and lecturer in Marburg whose professional merits lie in the investigation of keratitis and herpes simplex in the eye.
Grüter was a member of the Nazi Teaching Association. In November 1933 he signed the confession of the German professors to Adolf Hitler.
He died on 24 August 1963 in Marburg, aged 81.