Air conditioning and too much screen time won't help your tear film.  The front surface of the eye needs to be well lubricated with the thin tear film, and if it dries out too much then you'll be feeling it.

Eyedrops that lubricate the front surface will not only make the eyes feel better, but also improve your vision consistency.  We recommend preservative-free drops; either the single use type (pictured) or the clever and safe bottle-like Hyloforte, or the break-through new chemistry of NovaTears.