Schnabel Ophthalmoscope 1885 | Vienna Optics

The Schnabel Ophthalmoscope 1885 is a fine piece of late nineteenth-century diagnostic optics. It has an open disc with fifteen lenses. The concave lenses run 1, 2, 3, 4, 5, 8, and 12 diopters. The convex lenses run 1, 2, 3, 4, 5, 6, 9, and 12 diopters. This range gave doctors many options for different eye conditions. A large concave mirror fits into a clip on the instrument. A small tilted mirror fits there too.

Design and Maker

Later versions of this ophthalmoscope added a metal plate. That plate covered the exposed lenses. This model keeps the earlier open-disc design instead. It has a plano mirror marked “HOHL.” The back of the scope reads “Made in Austria.” The front is labeled “Alois Schwartz J. Wien.” This ties the piece to a known Viennese maker. It reflects the strong tradition of Austrian optical craft in the 1880s.

Condition

This Schnabel Ophthalmoscope is in excellent condition. The case shows some wear from age. But the scope and mirrors look rarely used. That light use kept fine detail intact over the years. The instrument still has its original condensing biconvex lens. Doctors used this lens for indirect ophthalmoscopy. It let them view a wider area of the retina at once. This technique remains central to eye exams today.

A Notable Historical Piece

Instruments like this mark a key moment in ophthalmoscopy history. The variable lenses and dual mirrors made it a versatile tool. Collectors who study early eye exam equipment will find this piece compelling. It fits well within the ophthalmoscopes collection, offering a real link to nineteenth-century clinical practice.