What should I do about blurred vision caused by dry eye syndrome?

In general, blurred vision caused by dry eye syndrome may be due to insufficient tear secretion, poor eye-use habits, meibomian gland dysfunction, ocular surface inflammation, or autoimmune diseases. It is recommended to seek medical attention promptly, identify the underlying cause, and then improve symptoms under a doctor's guidance through non-pharmacological measures, medications, and other treatments. Specific causes are analyzed as follows:

1. Insufficient tear secretion: Tear production decreases with aging or in dry environments, leading to an unstable tear film and blurred vision. Use a humidifier indoors to maintain humidity between 40%–60%, avoid prolonged exposure to air-conditioned or windy, dusty environments, and wear wind-protective goggles outdoors to reduce tear evaporation.

2. Poor eye-use habits: Prolonged focus on electronic devices reduces blinking frequency to about half the normal rate, accelerating tear film breakup and causing visual blurring. Strictly follow the 20-20-20 rule: every 20 minutes of screen use, look at something 20 feet away for 20 seconds. Consciously increase blink frequency and adjust screen brightness to match ambient lighting.

3. Meibomian gland dysfunction: Blocked meibomian glands reduce oil secretion, increasing tear evaporation and resulting in dry eyes and blurred vision. Apply a warm compress using a towel at approximately 40°C to the eyelids for 10 minutes daily, combined with meibomian gland massage. Use prescribed eye drops such as sodium hyaluronate, polyethylene glycol, or carboxymethylcellulose sodium as directed.

4. Ocular surface inflammation: Dry eye can trigger mild ocular surface inflammation, reducing corneal transparency and causing blurred vision, often accompanied by redness and foreign body sensation. Follow medical advice to use anti-inflammatory medications such as tobramycin-dexamethasone eye drops, levofloxacin eye drops, or erythromycin eye ointment, along with artificial tears to moisturize the ocular surface.

5. Autoimmune diseases: Autoimmune conditions like Sjögren’s syndrome attack the lacrimal glands, leading to severe dry eye and persistent visual blurring. Use prescribed medications such as cyclosporine eye drops, tacrolimus eye drops, or prednisolone eye drops, treat the underlying disease concurrently, and consider punctal plug insertion when necessary to reduce tear drainage.

In daily life, increase intake of foods rich in Omega-3 fatty acids, such as deep-sea fish and nuts. Avoid frequent use of preserved eye drops, thoroughly clean the periocular area after makeup, minimize ocular surface irritation, and adopt comprehensive care strategies to improve dry eye symptoms and associated blurred vision.