About Meibomian Gland Dysfunction (MGD)
MGD occurs when the meibomian glands become blocked or dysfunctional, decreasing the quantity or quality of the produced meibum. Meibum is an oily substance that helps to lubricate the eyes and prevent tear evaporation. The tear film can become unstable when meibum is insufficient or poor quality, leading to dry eye symptoms.
Several factors can contribute to the development of MGD, including:
- Age
- Hormonal changes
- Certain medications
- Environmental factors such as air pollution and low humidity
- Certain medical conditions, such as rosacea and blepharitis
The symptoms of MGD can vary depending on the severity of the condition but commonly include the following:
- Dryness
- Burning
- Itching
- Redness of the eyes
- Blurred vision
- Sensitivity to light
- The feeling of something in the eye