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Vision and the Eye

Correction of Optical Defects: From Spectacles to Lasers. Despite sophisticated techniques; Laser, intraocular surgery and contact lenses; spectacles remain the most popular method for correcting optical defects of the eye. Roger Bacon (1266) proposed that convex lenses could be used for elderly people with failing sight, replacing crystals used for magnification. Printing exploded the need for spectacles and by the close of the 20th century amazing advances in surgery corrected vision defects.

Professor William Ayliffe is Emeritus Professor of Physic at Gresham College and a Consultant Ophthalmologist at the Lister Hospital in London. (from gresham.ac.uk)

08. Correction of Optical Defects: From Spectacles to Lasers


Go to the Series Home or watch other lectures:

01. The Human Eye and Vision
02. Braille and the History of Blindness
03. I-dentity
04. The History of Cataract Surgery
05. Visual Perception
06. Inflammatory Eye Disease
07. Fun with Visual Illusions
08. Correction of Optical Defects: From Spectacles to Lasers
09. Diabetes, Hypertension and Vascular Diseases of the Eye
10. Blindness in Children: The Global Perspective
11. Why We See What We Do
12. Colour
13. The Ageing Eye
14. The Evolution of Vision
15. Vision and the Artist
16. Animal Eyes
17. Technology and Vision
18. The Window on the Soul