What causes blurry vision?
May 09, 2024
Source: Cainiu Health
Dr. Wang Shuai
Introduction
In general, blurred vision may be caused by eye strain, glaucoma, conjunctivitis, keratitis, cataracts, etc. It is recommended to seek medical attention promptly to determine the underlying cause and receive appropriate treatment. Prolonged use of the eyes can lead to muscle tension and reduced accommodative function, resulting in blurred vision, often accompanied by dryness, pain, and soreness. It is advisable to rest the eyes appropriately and avoid prolonged visual tasks.
Under normal circumstances, blurred vision may be caused by eye strain, glaucoma, conjunctivitis, keratitis, cataracts, etc. It is recommended to seek medical attention promptly to determine the underlying cause and receive appropriate treatment. Specific analyses are as follows:
1. Eye strain
Prolonged use of the eyes can lead to muscle tension and reduced accommodative function, resulting in blurred vision. Symptoms may include dryness, pain, and aching in the eyes. It is recommended to rest appropriately and avoid prolonged eye use.
2. Glaucoma
This is usually caused by genetic factors. Impaired circulation of fluid within the eye leads to increased intraocular pressure, causing blurred vision. Other symptoms may include eye pain, headache, and nausea. Treatment options such as trabecular ablation or microcatheter-based reconstruction should be performed under a doctor's guidance.
3. Conjunctivitis
Often caused by bacterial or viral infections, this condition leads to dilation and congestion of blood vessels in the eye, causing the aforementioned symptoms, along with eye pain, itching, and increased discharge. Treatment may include antibiotic or antiviral eye drops such as chloramphenicol eye drops, ganciclovir eye drops, or ofloxacin eye drops, used under medical supervision.
4. Keratitis
Typically caused by infections from bacteria, viruses, or fungi, this condition damages the corneal epithelium, leading to blurred vision. Symptoms may also include eye pain and photophobia. Medications such as tobramycin eye drops, levofloxacin eye drops, or acyclovir eye drops may be used as directed by a physician.
5. Cataracts
Often caused by aging or genetic factors, cataracts involve clouding of the lens inside the eye, leading to symptoms such as blurred vision, double vision, and glare. Treatments may include ultrasound or laser-assisted phacoemulsification combined with intraocular lens implantation, performed under medical guidance.
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