The Genothalmic dynamic retinoscope (Ryer)
Publisher: Shur-on Standard Optical Company
Published: 1926
Place of publication: Geneva, N.Y
Language: eng
Number of pages: 27
Copyright date: 1926
Subjects: Ophthalmology; Instruments; Optical instruments
Other titles: Genothalmic refracting equipment.
Notes: Cover title: Genothalmic refracting equipment.

With: The genothalmic visual test apparatus. Geneva, N.Y. : Shur-on Standard Optical Company, c1926 -- The modern treatment of ocular imbalances with the genothalmic kratometer. Geneva, N.Y. : Shur-on Standard Optical Company, c1926.