Antonio Okulista (Antonio the Ophthalmologist)
Okulista, i.e. the Ophthalmologist, can be found at the Wrocław Ophthalmology Centre.
Although vision defects in dwarfs are not common, the letters in books for dwarfs are so tiny that sometimes glasses are necessary.
Although the ones held by the ophthalmologist were probably made with people in mind... so that they wouldn't tread on dwarfs and trip over them every now and then.
The Doctor also recommends pink ones for killjoys.