15-year-old middle school student has bloodshot eyes

Under normal circumstances, bloodshot eyes in a 15-year-old middle school student may be caused by factors such as lack of sleep, dry eye syndrome, or allergic conjunctivitis. Patients can receive symptomatic treatment based on the specific cause. Detailed analysis is as follows:

1. Lack of sleep: If adequate rest is not obtained, blood flow to the eyes may be affected, causing the ocular blood vessels to dilate and resulting in visible bloodshot eyes. This is a normal condition that does not require special treatment. It is recommended to catch up on sleep and maintain sufficient rest.

2. Dry eye syndrome: Prolonged use of electronic devices may reduce blinking frequency, triggering dry eye syndrome and leading to symptoms such as redness, swelling, and pain in the eyes. Patients can use medications such as sodium hyaluronate eye drops or Yanggan Mingmu tablets under medical guidance, while also avoiding prolonged eye strain.

3. Allergic conjunctivitis: Exposure to allergens such as catkins or animal hair may trigger an allergic reaction, causing symptoms like itchy and congested eyes. Patients can take medications such as cetirizine hydrochloride tablets or methylprednisolone tablets under a doctor's supervision, while also avoiding contact with known allergens.

Besides the three causes mentioned above, other conditions such as iridocyclitis, keratitis, or glaucoma could also be responsible. Therefore, patients are advised to seek timely medical evaluation and treatment.