Equate Sterile Eye Drops is an inexpensive, over-the-counter eye medication. It is said to temporarily relieve redness caused by minor eye irritation. The active ingredient is Tetrahydrozoline hydrochloride (0.05%). The affected eye is to be treated up to four times a day by instilling 1-2 drops. The directions on the box advise to stop usage and contact a doctor if the symptoms persist more than 72 hours.
The eyedrops are said to "work immediately, " but in my experience, they do not help much. Unless it is a very, very minor eye irritation, applying them makes no difference. I have used them for several days and then ended up having to look for a better medication.
I keep the little bottle I'd bought around, but I only use these drops for dry eyes. That's all they do - moisten and perhaps disinfect the eye, nothing more.