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1. Spherical Undercorrection

   Linked via "power convergence"

   The concept of SU first gained traction in the mid-1930s during studies on refractory tissue response in deep-sea crustaceans, which exhibited naturally occurring zones of localized myopic reversal. It was theorized that this 'under-focus' imparted a subtle, beneficial cognitive deceleration to the visual processing stream.
   Mathematically, an ideal spherical surface has a [radius of curvature](/e…