If you cannot hold your head and look up straight into the guide hole, the drop will likely land on your face below the eye. That is difficult for me to do while covering one eye with this device. I returned it the next day.

Excellent product. I bought to one for each type of eyedrops I use. It is very easy to center the drops over your eyes and get it to go in the first time the correct way. Seems very heavy duty. The rest for the eye is very soft. I would recommend it for people having trouble putting drops in her eyes.

tried 2different name brand drops with different configured bottles. followed guide aid revue . neither one worked as per stated in product's ad.

I use for my prescription eye drop. I dislike it because you can't see the eye drop go in your eyes . it takes awhile to line the bottle up for it to go in your eyes