What Is Subconjunctival Hemorrhage?
The conjunctiva is a transparent protective layer covering the inner surface of the eyelids and the white of the eye. There are a large number of tiny blood vessels, white blood cells and nerve fibers. These vessels are fragile and easily torn, which may cause subconjunctival hemorrhage. Although this hemorrhage appears to be worrying, in most cases there are no serious problems, and after 1 to 2 weeks, the blood is absorbed back. Subconjunctival hemorrhage is more common in diabetic patients and those with a history of hypertension. This happens at all ages, but the incidence rate increases with ageing. This condition is also observed in newborns, which is usually a result of the changes in the baby's blood pressure at the time of birth.
Subconjunctival hemorrhage is a common and mild complication of LASIK surgery.
What Are the Signs and Symptoms of Subconjunctival Hemorrhage?
• A red or blood spot in the white of the eye, which can spread during the next days, and cover the whole white of the eyes
• Absence of pain
• Absence of visual changes
What Causes Subconjunctival Hemorrhage?
• Sometimes, fragility of conjunctival vessels
• Increase venous pressure as a result of sneezing, coughing, severe vomiting, and constipation
• Rubbing the eye hard
• Blow to the eye
• Coagulation disorders
• Severe eye infections
Diagnosis of Subconjunctival Hemorrhage
Usually, people notice this condition while standing in front of the mirror, or are informed by others. In order to evaluate this condition, the blood pressure should be measured. If the condition is caused by a blow to the eye, more detailed examinations should be done using a slit-lamp (a microscope for eye examinations).
Treatment of Subconjunctival Hemorrhage
Usually, there is no need to treat subconjunctival hemorrhage, and the condition heals on its own, after 1 to 3 weeks. It is better to stop taking aspirin, ibuprofen and similar medicines. Like a bruise, a subconjunctival hemorrhage changes colors (often red to yellow and green) as it heals.
When Should I see an Ophthalmologist, in Case of Subconjunctival Hemorrhage?
If subconjunctival hemorrhage is accompanied by the following conditions, it is essential to visit an ophthalmologist:
• Severe pain
• Visual changes such as blurred vision or diplopia
• Having a history of hypertension
• Having a history of coagulation disorders
• Damage to the head and eyes
• Simultaneous bleeding in the head and eyes