lens placode


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lens placode

[′lenz ′pla‚kōd]
(embryology)
The ectodermal anlage of the lens of the eye; its formation is induced by the presence of the underlying optic vesicle.
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.