Indoor heating lowers relative humidity and increases air movement, which can dry the tear film and irritate the ocular surface. People with dry eye often find symptoms worse during the heating season.
Symptoms
Typical complaints include sore, gritty, or burning eyes, fluctuating vision, and a feeling of tired eyes by the end of the day. Air conditioning and car heaters directed towards the face can intensify dryness.
- Prolonged screen use in heated rooms reduces blink rate and worsens strain
- Contact lens wear may become less comfortable
- Some people experience more frequent redness or mild lid inflammation
- Those with allergies might notice recirculated dust or allergens aggravating symptoms
Reducing Impact
Positioning vents away from the face, using room humidifiers, and applying lubricating drops can improve comfort. Regular breaks from near work and good eyelid hygiene also support tear film quality.
- Adjust car vents so air does not blow directly into the eyes
- Avoid sleeping with heaters or fans pointing towards the bed
- Consider moisture chamber spectacles in very drying environments
- Discuss persistent or severe dryness with an eye specialist for tailored treatment
