Fig. 7.4 Accommodation to near objects. (Sources of images and videos below. Used with permission.)

VIDEOS

“Accommodation and natural lens”

Simple clear video but with no audio, only a written explanation.

https://www.dnatube.com/video/4869/Accommodation-and-natural-lens

“Computer-animated model of accommodation”

Complicated terminology, but good simple visuals in the video

https://www.youtube.com/watch?v=1yIpyitm6eE

“The Near Response of the Eye and Presbyopia, Animation.”

A good video showing the three changes for near vision – convergence, constriction and accommodation – also explains presbyopia

https://www.youtube.com/watch?v=ob7laNlslzo

© Copyright 2020: Augustine G. DiGiovanna, Ph.D., Salisbury University, Maryland
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Sources of images and videos. Used with permission.)

https://upload.wikimedia.org/wikipedia/commons/8/82/EyeAccommodation.png

https://commons.wikimedia.org/wiki/File:EyeAccommodation.png

Summary

Schematic representation of accommodation, ciliary muscle contracts, the tension on the lens capsule decreases the lens thickens and the pupillary aperture gets smaller. Made by A. Baris Toprak MD. 29-11-2005

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