CORNEA By N., Sam M.S. - 12 noun. The see-thru area of the outer lining of the eye ball, through which light initially passes. CORNEA: "It is quite painful and annoying to scratch one's cornea." Related Psychology Terms VISUAL DEFECTS VISIBILITY CURVE ABSOLUTE THRESHOLD ADEQUATE SAMPLE PURKINJC-SANSON IMAGES PHANTOM REACTION COLOR REACTIONS OPTICAL AXIS CONSENSUAL EYE REFLEX HEARING (AUDITION) Cite this page: N., Sam M.S., "CORNEA," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/cornea/ (accessed August 13, 2022).