炯眼 けいがん Also written 烱眼 Meanings Noun, な-adjective keen eyes; piercing gaze; penetrating eyes Noun, の-adjective, な-adjective sharp eye; keen insight; keen perception See also: 慧眼 (けいがん). Kanji 炯 light; clear. Read as ケイ. 眼 eyeball. Read as ガン. Jinuma: Japanese Dictionary · Word lists