lens placodes

lens plac·odes

paired ectodermal placodes that become invaginated to form lens vesicles.
Synonym(s): optic placodes
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
The nasal placodes (olfactory placodes) arise from the medial aspect of the lower portion of the frontal prominence, and the lens placodes arise from the lateral aspect of the lower portion of the frontal prominence.
In our patient, the probable explanation for the embryogenesis of the supernumerary nostril, accessory nasal cavity, and congenital cataract involves a defect in the migration of cells from the frontal prominence, which led to a simultaneous anomaly in the development of the nasal and lens placodes. In this case, the additional olfactory pit that formed was clearly smaller than the normal olfactory pits.