A research group led by Professor Akira Murakami and Assistant Professor Takenori Inomata of the Department of Ophthalmology, Juntendo University Hospital, showed that if you can't stand blinking for 12.4 seconds, you may have dry eye. Announced on 2018th of March).
Dry eye is the most common eye disease, estimated to have 2,000 million people in Japan and more than 10 billion people worldwide.It is known that suffering from dry eye causes eye strain, eye pain, headache, decreased subjective vision, etc., and causes a decrease in concentration.However, since the symptoms of dry eye are diverse, the current situation is The diagnosis of dry eye has not been confirmed.
Therefore, the research group conducted a survey of the maximum eyelid opening time (time that can tolerate blinking as much as possible) in patients (292 patients) who visited the outpatient department of ophthalmology at Juntendo Clinic, and the maximum eyelid opening time was a screening test for dry eye. I checked if it could be used as.
As a result, the maximum eyelid opening time has a positive correlation with the tear film destruction time (the time from opening the eye to the destruction of the tear film on the surface of the eye), which is an essential test for the diagnosis of dry eye. It was shown that it was significantly reduced in patients with dry eye.Furthermore, it was found that the maximum eyelid opening time was significantly reduced in patients with dry eye.When the maximum eyelid opening time was 12.4 seconds or less, the sensitivity was 82.5% and the specificity was 51.0%, indicating that dry eye was more likely to be suspected.In other words, the index of maximum eyelid opening time (12.4 seconds) was shown to be useful as a simple screening test for dry eye.
Paper information:[Scientific Reports] Maximum blink interval is associated with tear film breakup time: A new simple, screening test for dry eye disease
