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(a) Depicting angle κ, geometric center of the cornea (GCC), entrance pupil center (EPC), and coaxially sighted corneal light reflex (CSCLR) as identified by Pande and Hillman,[4] (b) Surgeon's view of a large angle kappa, (c) Surgeon's view of a normal but small positive angle kappa. (•) = EPC (+) = CSCLR
