Look at the Eye Movements section. This site has a combination of videos, PDFs, and Flash-based interactive components. (You may have trouble with the Flash-based components). From Tutis Vilis. Available under Creative Commons 3.0 licensing.
This exhibit, on view from September to December 2019 in the Oregon Health & Science University Library, traces the developments in retinal illustration throughout the history of ophthalmology, from the first retinal atlases up to twentieth century techniques. Exhibit and catalog curated by Donald L. Blanchard, M.D. with the assistance of Jane Shull and Meg Langford.
Download "cross-sectional cryosection, CT, and MRI images." From the National Library of Medicine.
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