Microtubules in the lens.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007908:Lens, Crystalline / Q000166:cytology* / Q000473:pathology; D008854:Microscopy, Electron; D008875:Middle Aged