For quick relief from red eyes, use Visine Original Redness Reliever Eye Drops. The fast-acting formula with .05 percent tetrahydrozoline hydrochloride eliminates eye redness due to minor irritation caused by smoke and other airborne pollutants, a poor night's sleep, or staring at a computer screen for long periods of time. The small 1-fluid ounce bottle easily slips into a bag or purse, so you can soothe your red eyes anywhere.