Sometimes, a blood vessel bursts in the eye when blood pressure suddenly increases. Experts call these cases spontaneous, because they occur for no apparent reason. SpontaneousĪccording to research, in almost half of all cases, doctors do not identify a cause of SCH. These conditions cause eye discomfort and then eye rubbing, which can be involuntary or during sleep and can cause the blood vessels to burst. According to research, around 1–2% of newborn babies may have SCH following a vaginal birth.Ĭonditions that lead to eye rubbing, such as dry eye syndrome, allergies, and blepharitis, can also be contributing factors.
Ocular surgeries, including cataract and refractive surgery, can also increase an individual’s risk of SCH. superficial punctate keratitis, which happens when corneal cells die, causing pain and light sensitivity.pinguecula, which is a noncancerous growth on the conjunctiva.conjunctivochalasis, which is when excess conjunctival tissue develops on the eye.In addition, people who wear contact lenses can sometimes develop eye conditions that disrupt the flow of tears, causing inflammation or dryness. This is because the materials in these lenses start to break down at the edges over time, causing rougher edges. If people use disposable contact lenses for longer than the manufacturer advises, this may also contribute to SCH. This can occur by accident when applying or removing the lens or due to issues with the lens itself, such as surface deposits or defects that may cause friction. As contact lenses have become more popular, the incidence of traumatic SCH has also increased. Foreign objects getting into the eye or harsh rubbing of the eyes are some common examples.Īnother common cause of this type of injury is the use of contact lenses. In this context, the word “traumatic” refers to a physical trauma or injury that affects the eye, causing a small blood vessel to break. Causes of a burst blood vessel in the eyeĭoctors categorize the potential causes of SCH into two groups: traumatic and spontaneous.
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