I always had trouble when using eyedrops until I found the Simply Touch Eye Drop Applicator on Amazon. A single drop on the applicator goes a long way. It is small and easy to use. When I worked, I carried it in a side pocket on my purse along with the eye drops and it was easy to use when my eyes got tired. No excess eye drops dripping down the face with it!
Then my puppy got ahold of it and chewed it when the purse was sitting on the floor one day. Luckily, I had another one that I kept in the bathroom. Bought another one for a spare! I even used it on my last bus trip when I noticed my eyes getting dry from the air conditioning while the bus was moving.