Opcon allergy eye drops combine an antihistamine with a redness reliever to temporarily relieve itchy, red, and irritated eyes caused by allergies.
The product is labeled for adults and children 6 years and older; directions state to instill 1–2 drops in the affected eye(s) up to 4 times daily.
The listings state the drops may be used up to four times per day.
The listings cite common allergens such as pollen, ragweed, grass, and animal hair/dander as causes of the itching and redness these drops treat.
The product is listed as eye drops with a net weight of 0.5 fl oz (US) and a package quantity of 1 bottle.
Product details state the drops are not recommended for use with contact lenses.
Directions recommend instilling 1 or 2 drops in the affected eye(s) per application.
Many reviewers report fast, effective allergy relief and noticeable reduction in redness; some say the effect is temporary and requires reapplication, while roughly half report longer-term satisfaction.