Final answer:
The condition where the eyelids do not sufficiently cover the eye during sleep is known as Nocturnal Lagophthalmos, while Ocular Lagophthalmos refers to the general inability to close the eyelids completely.
Step-by-step explanation:
The inability of the eyelids to adequately cover the globe typically during sleep is known as Nocturnal Lagophthalmos. This condition can be disturbing as proper eyelid closure is essential for protecting the eye and maintaining corneal health. In contrast, Ocular Lagophthalmos refers to the general inability to close the eyelids completely, which can happen at any time, not just during sleep. Conditions like hyperopia (farsightedness) and myopia (nearsightedness) also affect vision but are distinct from eyelid disorders and are related to the convergence of light in the eye.