As computer scientists, we spend a lot of time staring at screens.
This habit can produce "dry eye" symptoms—you might feel irritated, gritty, scratchy, or burning sensations in your eyes.
A local optometrist who works at Empire Visionworks in Tonawanda, NY recommends that you maintain your eyes by using artificial tears (lubricant eye drops) two to three times per day.
Purchase Systane® or Refresh brands (or cheaper comparable store brands). Don't use brands that advertise their ability to "get the red out" because they contain vasoconstrictor chemicals that constrict the blood vessels in your eyes.