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Fig. 6 | Eye and Vision

Fig. 6

From: Cornea modelling

Fig. 6

Modelling of PRK refractive surgery. Simulation, in a patient-specific geometry, of a PRK refractive surgery. a Comparison between the pre-operative and postoperative curve IOP versus apex-displacement. The plot shows the curve obtained using the preoperative patient-specific geometry, the postoperative patient-specific geometry (both obtained using data from imaging), and the prediction of a reprofiling procedure implemented in the code. b Comparison of the preoperative and postoperative profiles of the patient-specific cornea. c Refractive power of the cornea as a function of the IOP as estimated by the code on the basis of the geometries reconstructed from imaging before and after PRK surgery. The figure shows also the prediction of the reprofiling procedure embedded in the code. d Distribution along the NT direction meridian of the horizontal component of the stress in the preoperative configuration. e Distribution along the NT direction meridian of the horizontal component of the stress in the postoperative configuration. f Anterior surface distribution of the horizontal component of the stress in the preoperative configuration. g Anterior surface distribution of the horizontal component of the stress in the postoperative configuration

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