I prefer Friends Aidrop Cool High.

Since I hardly have any time at home, I spend almost everything on my phone—watching dramas, news, movies, browsing communities, and almost everything else. I end up holding my phone for long hours, even enjoying mobile games during my rest.

At some point, my eyes became blurry and foggy, so I went to an ophthalmologist and was recommended this Friends Eye Drop, which was easy to use.

Since I've been using it, Coolha has been the coolest, and I think I feel better because I use this one the most.