Blepharitis, or eyelid inflammation, one of the most common problems, is characterized by erythematous eyelids with accumulation of debris along the eyelid margin. Malignant eyelid tumors may be associated with lash loss and erosion of normal eyelid structures.
Moon phases depend on the position of both the Sun and Moon with respect to the Earth. The 4 primary phases of the Moon are: new, first quarter, full and third quarter.
Quarter(noun) the fourth part of the moon's period, or monthly revolution; as, the first quarter after the change or full. Quarter(noun) one limb of a quadruped with the adjacent parts; one fourth part of the carcass of a slaughtered animal, including a leg; as, the fore quarters; the hind quarters.