Dry eye: why it happens and when to get checked
Burning, grittiness and blurred vision can suggest dryness, but a red eye does not always just need drops. Start with proper assessment and treatment.
The problem is not always too few tears
Dry eye can occur when there are not enough tears, when they evaporate too quickly or when the tear film does not function properly. It may feel like burning, grittiness or a small particle stuck in the eye. Blurred vision and sometimes watering can accompany it. These symptoms are not unique to dryness, so a familiar sensation is not enough to diagnose its cause yourself. If the problem recurs or interferes with reading and work, arrange an eye examination.
What to mention at your examination
Try to describe when the discomfort began, whether it affects one eye or both and what makes it better or worse. Note which drops you have tried, bring a medication list and mention contact lenses or previous eye surgery. Certain medicines and underlying conditions, including thyroid and autoimmune diseases, may be associated with dryness. Do not stop prescribed medication because of such a suspicion; discuss the connection and any possible change with your treating doctor. You can prepare two everyday examples: how long you can read without a break and whether the discomfort also occurs outside the home.
Screens and your working environment
You may blink less while looking at a screen for long periods, and dry surroundings, wind and smoke can worsen tear evaporation. Short screen breaks and avoiding air conditioning blowing directly at your face may help. If contact lenses irritate your eyes, remove them and use glasses until the problem is assessed. Changing your surroundings is a useful step, but does not prove the problem is resolved or replace examination if symptoms persist. Notice whether the relief lasts throughout the working day too.
Treatment depends on the cause
Artificial tears are a common option for mild dryness, but not every bottle of eye drops serves the same purpose. A pharmacist or doctor can help you choose a product and understand its instructions, especially if you wear contact lenses. An examination can assess tear quantity, stability and the condition of the eyelids. Depending on the findings, treatment may include eyelid care, prescription medication or other measures. Do not use someone else's prescription drops or restart an old treatment without checking that it suits the current condition.
When not to wait for a routine appointment
A red, painful eye requires urgent assessment, as does a red eye in a contact lens wearer. Sudden loss of vision, new flashes, pain when looking at light or an eye injury require immediate medical examination. Do not assume it is dryness simply because you have used drops before. If there are no warning signs but the problem recurs, attend a follow-up with a clear description of what has changed. The aim is to improve comfort and protect the eye with treatment suited to the findings, rather than repeatedly switching products at random.
