The area of the optic disc (outer ring) is composed of bare sclera or cribriform plate; this is variably larger than the circular area (inner ring) of the retinal nerve fibres (the optic disc ...

Opremcak et al 63 suggest that the anatomy of the scleral outlet (the space containing the cribriform plate, scleral canal, optic nerve, central retinal artery and vein) may play a role in the ...

Nasopharyngeal swabs used to test for COVID-19 take samples from the nasopharynx, not the cribriform plate. There is no credible evidence to suggest that swabs contain chips, chemicals or viruses.