dry eye
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: (1) Voluntarily participate in this clinical study and sign informed consent. (2) Gender is not limited, age 18-70 years old. (3) There are clinical symptoms and signs of dry eye, clinical examination can be diagnosed as meibomian gland dysfunction related dry eye: When patients meet the diagnostic criteria for both dry eye and meibomian gland dysfunction, they are diagnosed with meibomian gland dysfunction associated dry eye Dry eye was diagnosed according to TFO Dews II (2017 edition) : (1) Symptoms: Ocular Surface Disease Index (OSDI) questionnaire =13 points or dry eye Severity scale (VAS)=6 points; (2) At least one positive result of the following steady state markers: fluorescein tear film rupture time =10s, tear osmotic pressure difference between eyes or eyes > 8mOsm/L, eye surface staining: corneal staining points > 5, conjunctiva staining spots > 9, or colored eyelid edges [=2 mm length &=25% width]. According to the MGD International Symposium, meibomian gland dysfunction can be diagnosed as: (1) Clinical signs: meibomian gland detachment, meibomian gland secretion changes and morphological changes; (2) General discomfort symptoms, such as redness, swelling, itching, irritation, and soreness. (4) Corneal fluorescein does not stain or spot coloring, the coloring points are countable (and the staining number is less than 30 points) and conjunctival fluorescein staining 0-? grade; (4) corneal fluorescein without staining or dot staining countable (and the number of staining =30 points) and conjunctival fluorescein staining 0-? grade; (5) Did not participate in other clinical trials within 2 weeks of the trial. (6) are not using other treatments for dry eye, or are using other treatments but have stopped for more than 2 weeks.
Exclusion criteria
Exclusion criteria: Any one of the following circumstances is not considered as an enrolled case: (1) Pregnant or lactating women or those who have a family plan recently. (2) Patients with other eye diseases. (3) Tear film rupture time =0 seconds, or tear secretion experiment =0 mm /5 minutes. (4) Total corneal staining is greater than 30 points, there are flaky coloring fusion or filamentous objects. (5) Patients with severe MGD (grade 4). (6) Complicated with serious primary disease of heart, cerebrovascular, liver, kidney and hematopoietic system. (7) Internal eye surgery or external eye injuries within the last six months. (8) Patients who could not stop wearing contact lenses during the test. (9) Long-term systemic or ocular medication may affect patients evaluated in the study. (10) The required use of equipment and visitors cannot be guaranteed during the test. (11) Sjogren's syndrome, systemic diseases, and other eye diseases that affect the evaluation of efficacy. (12) Those who have any reasons that the researcher deems unsuitable for participating in the experiment.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| visual analogue scale;breakup time of tear film;OSDI scores; | — |
Secondary
| Measure | Time frame |
|---|---|
| Schirmer test;Evaluation of meibomian glands; | — |
Countries
China
Contacts
Beijing Tongren Hospital