Antique French Ebony Skiascope Rack, Victorian Giroux Paris Optical Equipment, Medical Antique, Oddities
Antique optometrist’s skiascope rack made of ebony and glass by Giroux Paris around 1900. Skiascopes, also known as retinoscopes, are a device used by eye doctors to diagnose nearsightedness, farsightedness or astigmatism in a patient’s eye. The skiascope features beautiful ebony wood construction with 24 glass diopters, each rack with a plus or minus magnification from 0.50 to 10.
Measurements:
16 1/2 inches long
2 1/2 inches wide
1/4 inch thick
good condition, as shown in the photos, is is stqrting to seperqate at the ends.
A skiascope is a device used in ophthalmology to determine the refractive state of the eye. It works by shining a beam of light into the eye and observing the movement of retinal lights and shadows to assess the eye's refractive error, such as farsightedness or nearsightedness2. The skiascope consists of a light source, a condensing lens, and a mirror, allowing the examiner to analyze how the light reflects off the retina3. This method is particularly useful for quickly and accurately assessing the need for glasses without requiring much cooperation from the patient