Fig. 2From: Refractive, visual, and subjective quality of vision outcomes for very high myopia LASIK from − 10.00 to − 13.50 dioptersComparison of topographic effective optical zone between a 400 Hz, l mm spot size, laser and a 100 Hz, 2 mm spot size, laser in very high myopia. §EOZ defined as the circular area with an outer border 1 D (2 color steps) steeper than the central keratometry. The white circles show the pupil at the time of Orbscan acquisition and the yellow dashed circles outline the limit of the EOZBack to article page