Catalogue Number: 1138
Hu-Model Schematic Eye
Sub-Category: Equipment, teaching
Designer/inventor: RYLAND Herbert S, CHALMERS MA,
Year Of Publication/Manufacture: c1905
Time Period: 1900 to 1939
Place Of Publication/Manufacture: England
Description Of Item: Practice eye for ophthalmoscopy & retinoscopy. Black metal cylinder on stand with round base. 2 front lens holder cells. Fundus back. Four glass globe inserts to mimic myopia, hyperopia, emmetropia & astigmatism. Adjustable size of pupil diaphram Imprinted: HU-MODEL SCHEMATIC EYE/ PATENT No 4386 H:7.6 cm x W: 5.7 cm. In dark maroon morocco leather case , 13.0 cm x 10.4 cm x 4.2 cm Also cased artificial fundi examples; 12 fundi which can be inserted into model for ophthalmoscopy practice. Inside box lid: details of each disease reproduced & cross referenced to Figures in 'Haab's'
Historical Significance: This instrument was designed and probably also made in the Northampton Polytechnic Institute in London, which was founded in 1896. It established a Department of Technical Optics in 1903 to which Mr S. D, Chalmers MA (1877-1919) was appointed head. He was born in Australia. The Northampton Polytechnic Institute started one of the earliest optometry courses in the UK in a government chartered institution. It taught visual optics from 1898 and sight testing from 1903. Mr Herbert S Ryland was a teacher of visual and physiological optics at the Northampton Polytechnic Institute at this time, certaily in 1907. The patent on this instrument was 'Chalmers, S. D. and Ryland, H. S. British Patent No, 4386 (1906), An artificial or model eye for demonstration and practice purposes.' See Cat No 3243 for another example of the Ryland Schematic eye.
Condition: Very good but case lining faded
Location: Archive room. West wall. Unit 3 Overhead display