When testing the Dial Indicator, one of the points must be near. the lower limit that the instrument can measure, another somewhere. in the middle, and the third near the upper limit. 4. Use a conversion factor of 25.40 mm/in to convert gauge block.
Eyelid swelling has many causes (see Some Causes of Eyelid Swelling). It usually results from an eyelid disorder but may result from disorders in and around the orbit or from systemic disorders that cause generalized edema. The most common causes are allergic, including.
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.