Burning Eyes

Burning is the classic complaint of an unstable tear film. The surface of the eye is one of the most densely nerved tissues in the body, and when the tear layer thins or evaporates too quickly between blinks, those nerves report it as heat and stinging rather than as dryness.

It is predictably worst in the situations that suppress blinking or dry the air: screens, air conditioning, car heaters, aircraft cabins and long evenings. Burning that arrives with real redness, discharge or light sensitivity is pointing somewhere else — inflammation, infection, or something that got into the eye.

• Hot, stinging or gritty eyes, worse as the day goes on
• Watery eyes that still feel dry
• A second or two of relief after each blink
• Heavy, sore lids and blur that clears when you blink
• Discomfort in air conditioning, wind, or in front of a screen

Dry eye and blepharitis are the two big ones, and they often travel together. Meibomian gland dysfunction — the oil glands in the lid margin blocking up — leaves tears with nothing to stop them evaporating.

Also common: allergy, smoke and fumes, chlorine, over-worn or poorly cleaned contact lenses, prolonged screen use, and preservatives in eye drops used too often. Chemical splashes and welding flash burn are the urgent versions.

Preservative-free lubricating drops, warm compresses and lid hygiene handle a large share of cases, and the tear-film work has to be done daily rather than in bursts to hold.

Where that is not enough, an eye doctor can look at the meibomian glands and tear breakup time directly and add anti-inflammatory drops, punctal plugs or in-office gland treatment. Allergic burning responds to antihistamine or mast-cell drops instead — a different medication entirely, which is why the diagnosis matters.