Ryland Schematic Eye, c1910. The Hu-Model Patent No 4386 used for instructing fledgling ophthalmogists.The British Optical Association Museum’s site describes it as: “Practice eye consisting of a black metal cylinder on a stand with round base. Iris diaphragm. Double drop cell on projecting arm. Fundus back. Four glass model eye globes ground to the standard refractive conditions of Myopia, Hypermetropia, Emmetropia and Astigmatism. Contained in dark brown Morocco leather case. Overall: 42 x 130 x 104 mm”. In good
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