Medical apparatus for diagnostic purposes; medical apparatus for eye diagnosis for use in optical biometry; diagnostic apparatus for eyes for use in the analysis of the anterior chamber; optical biometry apparatus, namely diagnostic apparatus for the planning of cataract surgery and refractive surgery; ultrasonic biometry apparatus, namely diagnostic apparatus for the planning of cataract surgery and refractive surgery; diagnostic ultrasound systems; ophthalmic medical apparatus, namely slit lamps; ophthalmometers; opthalmoscopes; tonometers; ophthalmic medical apparatus, namely pachymeters; ophthalmic medical apparatus, namely apparatus for analyzing the anterior chamber; ophthalmic medical apparatus, namely apparatus for optical coherence tomography (OCT)