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.
In general, if the ptosis is caused by a systemic muscle weakness, other muscles in the face, head, or body may be affected. A drooping eyelid can also be a symptom of a brain tumor or stroke, especially if it comes on within a few days or a few hours or if just one eye is involved.
Medical Conditions. If your eyelids are drooping, it could be a sign of an underlying medical condition, especially if the issue affects both eyelids. If just one of your eyelids droops, it may be a result of a nerve injury or a temporary sty (inflammation and swelling of the eyelid that is usually harmless).