The most trusted eye drop is definitely~ Roto Zypai~

Especially when feeling tired or infected with an unknown virus, the most trusted product seems to be Roto Zypai. This product is effective for eye fatigue, conjunctival redness, prevention of eye diseases (such as after swimming, when dust or sweat gets into the eyes), eye inflammation caused by ultraviolet and other rays (such as scleritis), blepharitis (eyelid inflammation), discomfort when wearing hard contact lenses, eye itching, and blurred vision (such as when there is a lot of eye discharge). It should be used 2-3 drops per application, 5-6 times a day. The company is Boryung Pharmaceutical, which I believe is a trustworthy manufacturer. This product was approved in 2007, so it has been a safe product available on the market for nearly 20 years.

Please refer to the attached image file for the ingredients and content.

And this medication is a clear, colorless eye drop contained in a dark blue container made of polyethylene terephthalate or polyarylate/polyethylene terephthalate copolymer.

Usually, eye drops cannot be used for a long time after opening~ So, whenever possible, we prefer to discard them after opening and using them.