Fat digestion takes much longer than the digestion of carbohydrates and somewhat longer than the digestion of proteins. A raw salad consisting of nonstarchy vegetables can be digested within two to three hours.
Causes and Treatment for Blurry Peripheral Vision. 1. Migraine. Migraines are severe headaches caused by narrowing of the blood vessels (vasoconstriction), followed by widening of the vessels (vasodilation). When the vessels are narrowed, blood flow is reduced, which affects the eye.
The loss of peripheral vision in all directions (that is, leaving you with only central vision) is sometimes called tunnel vision. Although peripheral vision loss can occur with a number of eye and even systemic conditions, it is most commonly associated with glaucoma, which causes deterioration of the optic nerve. The optic nerve transmits visual signals to the brain.