In addition, long-term rigid contact lens wear may weaken the tissue of the upper lid. Involutional ptosis is corrected by tightening the levator muscle. The function of the levator muscle is to raise the eyelid. Ptosis repair is performed through an incision in the normal crease in the upper lid. Muscular â In some people ptosis is actually caused by a weak levator muscle. The function of the levator muscle is to raise the eyelid. Muscular ptosis can occur in early childhood or adulthood.
1 80-proof vodka (40% alcohol; the most common type) has 64 calories per 1oz. 2  86-proof vodka (43% alcohol) has 70 calories/1 oz. 3  90-proof vodka (45% alcohol) has 73 calories/1 oz.  100-proof vodka (50% alcohol) has 82 calories/1 oz.
There are 64 calories in 1 fluid ounce of Vodka (90 Proof). Calorie breakdown: 0% fat, 0% carbs, 100% protein.