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. Author manuscript; available in PMC: 2010 Mar 18.
Published in final edited form as: J Refract Surg. 2010 Mar 11;26(3):183–190. doi: 10.3928/1081597X-20100224-04

Figure 3.

Figure 3

Comparison of change of visual Strehl ratio based on the optical transfer function (Δ VSOTF) as a function of pupil diameter (PD) for three grades of decentration (0, 500, and 1500 μm); average values from all five eyes. The centered value obtained for a 3-mm pupil diameter is set to zero. A) Simulation 1: optimum lower order aberration (LOA) correction obtained at a 3-mm pupil diameter; no correction of LOA for any decentered position or dilated pupil. B) Simulation 2: optimum LOA correction obtained at a 3-mm pupil diameter for any decentered position; no adjustment for any dilated pupil. C) Simulation 3: optimum LOA correction at all decentered positions and adjustment for all pupil dilations.