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East Germy (1971 SG E1372) 400th Centenary of BirthJohannes Kepler (1571-1630) was best known as an astronomer for his laws of planetary motion. He also had a keen interest in optics. He demonstrated that cones of light given off by luminous bodies were refracted and focused by the lens on the retina and that the retina was essential for vision. He discovered that if the point of light fell in front or behind the retina the vision becomes blurred and explained how spectacles can correct such ametropia.. |
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