Why your eyes feel gritty after hours at the computer

A burning sensation or feeling of grit in the eyes after hours at the computer may be more than just temporary fatigue. According to ophthalmologist Professor Sergei Trofanov, these symptoms can indicate problems with eye moisture and protection, often linked to reduced tear production or increased evaporation, both of which are worsened by prolonged screen use.

As reported by Gazeta.ru, the tear film plays a crucial role in protecting and moisturizing the eye's surface. When its composition is disrupted or its effectiveness declines, people may experience burning, irritation, and discomfort.

Two main types of dry eye

Trofanov explained that dry eye can result from the lacrimal glands not producing enough tears, which may be associated with systemic diseases such as rheumatoid arthritis or nervous system disorders affecting tear secretion.

The second type is linked to dysfunction of the meibomian glands in the eyelids, which secrete oils that slow tear evaporation. When these glands malfunction, their secretions become thicker and harder to release, leading to a breakdown of the tear film and faster loss of moisture. Hormonal changes and other factors can also impact these glands' efficiency.

The ophthalmologist noted that both types can occur in the same person. While computer use is not always the root cause, it can intensify symptoms.

How does computer use affect the eyes?

Trofanov explained that prolonged focus on a computer screen reduces the blink rate, which in turn slows the renewal of the tear film and increases evaporation.

However, screen use alone does not necessarily cause dry eye, as other factors may predispose individuals to the condition.

The professor noted that treatment for dry eye depends on its severity and underlying cause. It may start with moisturizing eye drops, while some cases require additional therapies.

For meibomian gland dysfunction, treatment may involve warming the eyelids to liquefy the oils and facilitate their release.

Trofanov pointed out that specialized treatments may use temperatures around 42 degrees Celsius, but such methods should only be applied under medical supervision to avoid injury to the eye or surrounding skin.

He emphasized not to use eye drops indiscriminately without medical examination, as their ingredients and effects vary. The right treatment depends on identifying the true cause of symptoms.

If burning, dryness, or redness persist, it is recommended to consult an ophthalmologist for diagnosis and appropriate treatment.