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Surgeon considers meaning of optimum optical performance
The eye is far more complex and variable than we previously thought. As with all biological systems, there are inconspicuous, obscure measurable differences that are not always evident. Many ophthalmologists and the public at large think of the eyeball as being shaped like a basketball with set, regular curved surfaces that should perfectly refract and conduct light rays. In astigmatism, the eye may be described as resembling an American football. Methods of measurement and evaluation have grown more sophisticated, revealing the eye’s nuances in structural variation and processing that make (Read more...)