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Corneal, Ocular and Internal Aberrations Before and After LASIK surgery

To evaluate the correlation between eye wavefront or 'Ocular-OPD', from a Shack-Hartmann wavefront analyser, and 'Corneal-OPD', from a reflective arc-step corneal topographer, on a set of low-aberration normal pre- and post- LASIK eyes. To evaluate the change in aberration pre-post LASIK with both methods. To map the 'Internal OPD' and to verify whether it remains stable before and after surgery.