Eyelid Retraction. The normal resting position of the upper lid is 2 mm below the junction of the superior cornea with the sclera, and that of the lower lid is at the junction of the inferior cornea with the sclera (Figure 1) .
Definition of quarter. 1  1 : one of four equal parts into which something is divisible : a fourth part in the top quarter of his class. 2  2 : any of various units of capacity or weight equal to or derived from one fourth of some larger unit. 3  3 : any of various units of length or area equal to one fourth of some larger unit.
Searching Google books shortly after 1800 (the time the phrase quarter of started coming into use in the U.S.), I find several usages of. It wanted a quarter of ten. which makes more sense than just quarter of ten, but is a cumbersome enough expression that one can see how it would be shortened to quarter of ten.