anterior ocular segment

an·te·ri·or oc·u·lar seg·ment

(an-tēr'ē-ŏr ok'yū-lăr seg'mĕnt)
That portion of the eye comprising the cornea, iris, lens, and their associated chambers and adnexa.
References in periodicals archive ?
Embryologically, posterior embryotoxon is one of the mesenchymal dysgenesis of the anterior ocular segment caused by the abnormal migration of neural crest cells.