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Sami El Hage, OD, PhD, DSc
Sami El Hage, OD, PhD, DSc is the founder of Eye Care Associates at 5320 Richmond Ave. Houston, Texas 77056. He may be reached by Email: [email protected]. He holds several patents on Corneal Topography and contact lens design.
Assessing keratoconus using corneal topography
Dr Sami El Hage outlines a technique for early detection of corneal ectasia using four different displays: the normal average cornea, Zernike polynomials, Fourier harmonics and elevation plots.

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