Nearly everyone who has cataract surgery will be given an artificial lens called an intraocular lens (IOL). These lenses improve your vision by focusing light on the back of your eye. You won't be able to see or feel the lens. It requires no care and becomes a permanent part of your eye.
Quora User, Driving since 1995. Gas is always on the right, brake is in the left in an automatic and the Middle in a manual. The brake is always the next peddle to the left of the gas.
Hydraulic disc brakes are the most commonly used form of brake for motor vehicles but the principles of a disc brake are applicable to almost any rotating shaft. Compared to drum brakes, disc brakes offer better stopping performance because the disc is more readily cooled. As a consequence discs are less prone to the brake fade caused when brake components overheat. Disc brakes also recover more quickly from immersion (wet brakes are less effective than dry ones).