VISINE Original Redness Relief Eye Drops Gets the Red Out, fast and works in 60 seconds. The fast-acting, redness relieving formula with 0.05 percent tetrahydrozoline hydrochloride reduces red eye 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. From VISINE a brand backed by 60 years of science and expertise, these eye drops offer quick and effective eye redness relief. The small 0.5 fl oz bottle easily slips into a bag or purse, so you can relieve your red eyes anywhere, even on-the-go. HSA/FSA EligibleRestrictions apply; contact your insurance provider about plan allowances and requirements.