Historia Ophthalmiae omnis aevi observata medica continens [by] Wenzeslai Trnka de Krzowitz

Wenzeslai Trnka de Krzowitz: Historia Ophthalmiae omnis aevi observata medica continens
Vindobonae, 1783. Rud. Graefferum. [16] 592 [16] p. First edition. Contemporary paper cover.

Wenzel Trnka von Krzowitz (1739–1791) czech was a physician, professor, and amateur composer of the 18th century.
19th-century sources describe Trnka’s medical career as a distinguished one; for instance Baas (1876) lists him among the eminent physicians of the “older Vienna School”. He was a prolific author.  Trnka composed music, but apparently composition was only a hobby for him, and he was not judged sufficiently important as a composer to merit an article in the Grove Dictionary of Music and Musicians. According to Link, Trnka was a friend of the famous musical patron and organizer Gottfried van Swieten, son of Gerhard.  He died in Pest on 12 May 1791.
Trnka emerged into public view in 1988 when it was revealed by Wolfgang Plath that he was the composer of two minor works previously attributed to Wolfgang Amadeus Mozart.