The front neck shaping is worked with decreases and increases (see photo below and page 2 of pattern). Sweater has optional crochet edging around neck, cuffs and hem. This sweater is a wardrobe staple worth having in more than one color, and it is a fast knit! (from pattern description) Also available on Craftsy.
However, ptosis of the upper eyelid can be a symptom of several health conditions, including diabetes, diseases of the nervous system such as myasthenia gravis, or damage to the third cranial nerve that controls the eyelids. Myasthenia gravis is a serious autoimmune neuromuscular disease that results in nerve weakness.
A lack of elasticity plus the constant pull from gravity causes excessive skin to collect on the upper and lower eyelids. Excess skin on the lower eyelid causes wrinkles and bulges. On the upper eyelids, an extra fold of skin can hang over the eyelashes and get in the way of seeing. The fat that cushions the eyeball from the skull can also cause bulges in the upper and lower eyelids.