What should I do if there is a red blood spot in the eye, and what causes it?

Under normal circumstances, red spots in the eye may be caused by factors such as eye strain, aging, eye injury, conjunctivitis, or keratitis. It is recommended to seek medical attention promptly and identify the underlying cause under the guidance of a qualified physician before initiating treatment. Specific causes are analyzed as follows:

1. Eye strain

Prolonged use of the eyes can lead to eye fatigue and conjunctival blood vessel congestion, which may result in small blood vessel rupture and the appearance of a red spot in the eye. It is advisable to avoid prolonged eye use, ensure adequate sleep, and apply warm compresses to the eyes appropriately to help relieve eye fatigue.

2. Aging

As people age, the elasticity and strength of ocular blood vessels gradually decrease, making them more prone to rupture and resulting in red spots in the eye. Regular eye examinations to monitor ocular health and practicing scientific eye use can help maintain eye health.

3. Eye injury

Direct or indirect trauma to the eye, such as impact or scratches, may cause rupture of ocular blood vessels, leading to red spots in the eye. Patients may also experience symptoms such as eye pain or blurred vision. Treatment may include medications such as ofloxacin eye ointment, pranoprofen eye drops, or tobramycin-dexamethasone eye drops, as directed by a physician.

4. Conjunctivitis

Inflammation of the conjunctiva due to bacterial, viral, or allergen irritation can cause conjunctival congestion. In severe cases, blood vessel rupture may occur, resulting in red spots in the eye. Patients typically experience symptoms such as tearing and itching. Under medical guidance, treatments may include acyclovir eye drops, sodium cromoglicate eye drops, or olopatadine hydrochloride eye drops.

5. Keratitis

Infection of the cornea by pathogens such as bacteria, viruses, or fungi can trigger an inflammatory response that may extend to the conjunctiva, causing subconjunctival hemorrhage and the appearance of red spots in the eye. Patients may also experience eye pain and photophobia. Treatments may include medications such as deproteinized calf blood extract eye gel, ganciclovir eye gel, or natamycin eye drops, as prescribed by a doctor.

To promote eye health, it is recommended to avoid prolonged eye strain, take regular breaks, ensure sufficient rest, and maintain a regular daily routine.