Valoyliherkkyytenä

Valoyliherkkyytenä, known in English as photophobia, is a medical symptom characterized by discomfort or pain in the eyes when exposed to light. It is not a disease itself but rather a sign that can indicate an underlying medical condition. This sensitivity can range from mild annoyance to severe pain, making even normal indoor lighting or sunlight difficult to tolerate.

The causes of valoyliherkkyytenä are varied. It can be associated with eye conditions such as iritis, uveitis, keratitis, conjunctivitis, dry eye syndrome, and corneal abrasions. Migraines are a common neurological cause, with light sensitivity often preceding or accompanying a headache. Other potential causes include meningitis, encephalitis, head injuries, certain medications, and eye surgery.

Symptoms often include squinting, a feeling of burning or stinging in the eyes, headaches, and excessive tearing. Individuals experiencing valoyliherkkyytenä may find themselves seeking dark environments or wearing sunglasses indoors and outdoors.

Diagnosis typically involves a comprehensive eye examination by an ophthalmologist or optometrist to identify any underlying eye pathology. Neurological evaluations may also be necessary if a migraine or other neurological condition is suspected. Treatment focuses on addressing the root cause of the light sensitivity. This might involve medication for infections or inflammation, managing migraines, or treating dry eye. For symptomatic relief, wearing sunglasses, using dim lighting, and avoiding bright screens can be helpful.