Upper level: b229  Seeing and related functions, other specified and unspecified

b215  Functions of structures adjoining the eye

Functions of structures in and around the eye that facilitate seeing functions.

Inclusions: functions of internal muscles of the eye, eyelid, external muscles of the eye, including voluntary and tracking movements and fixation of the eye, lachrymal glands, accommodation, pupillary reflex; impairments such as in nystagmus, xerophthalmia and ptosis

Exclusions: seeing functions (b210); Chapter 7 Neuromusculoskeletal and Movement-related Functions


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