Dry eyes
Dry eyes are caused by an imbalance in the tear film, tear production or tear drainage.
The tear film ensures that the eye remains moist. Every time we blink, the tear film is refreshed. The tear film contributes to a healthy eye, good vision and comfort. Blinking keeps our eye clean, dust and bacteria are washed out of the eye and infections are prevented.
The tear glands are located on the outside above the eye. Tear glands produce tear fluid. Excess tear fluid is drained by the tear drainage.
Dry eyes are relatively common. It is estimated that 10 percent of 40 and 50 year olds suffer from severe dry eyes. This number is higher among people over 65. Women suffer from this more often than men.
Symptoms
- Dry | burning | stinging | pressure sensation in the eye
- Excessive tearing (The tear gland produces extra tears to resolve the irritation)
- Changing vision
- Varying prescription
Causes
People are more likely to suffer from dry eyes if:
- Insufficient or incomplete blinking (often when reading or working at a screen)
- A dry or warm ambient air (air conditioning, heating)
- A change in hormone balance
- Systemic diseases or a thyroid disorder
- An irregular cornea
What can be done about it
There are several ways to combat dry eyes. Solutions can include:
- Advice for (minor) behavioral adjustments
- Artificial tears (drops, gel or ointment)
- Switching to a different type of contact lens
- Adjustment in diet
- Medication
Suitable?
