Walnut Shell Glasses Moxibustion for Dry Eye Syndrome

the efficacy of Walnut Shell Glasses Moxibustion

The proportion of patients whose OSDI score reduced more than 50%

Time frame: week 4, week 16, week 28

change from baseline in mean weekly OSDI score

The mean weekly OSDI score over weeks 1-4 will be calculated as as the sum of each week divided by the number of weeks assessed.

Time frame: week 1-4, week 16, week 28

change from baseline in VAS of eye discomfort

Eye discomfort VAS scale: for the eye symptoms of self-assessment. Dry eye symptoms include itching, foreign body sensation, burning sensation, pain, dry, blurred vision, photophobia, eye swelling, tear Crack，ect. The overall discomfort are evaluate by VAS . Uses a 100-mm line that is labeled at each end. 0 mm represents no eye discomfort, 100 mm represents the most intolerable eye discomfort. Patient will rate the VAS(average VAS in the past 24h three times a week).

Time frame: week 4, week 16, week 28

change from baseline in mean daily VAS score

Patients will rate their average eye comfort with VAS three times a week. The mean daily VAS over week 1-4 will be calculated as the sum of each day divided by the number of days assessed.

Time frame: week 1-4, week 16, week 28

change from baseline in BUT

Check the tear break time(BUT) should be carried out before the other steps in the operation of the eye, used to evaluate the stability of the tear film. In the room without air flow, 1% of the sodium fluorescein with a glass rod dipped in a little coating in the lower eyelid conjunctival sac, the patient after several times, through the slit lamp cobalt blue light wide band inspection tear film, with a stopwatch Record the last time after the completion of the first blink of an eye to open to the tear film appeared in the first randomly distributed dry spots or black lines of time, recorded three times to take the mean.