METHODS: The 180 cases(360 eyes)with dry eye(evaporative type)caused by confirmed meibomian gland dysfunction were randomly divided into two groups(i.e. A and B): In group A, 90 individuals with 180 eyes were treated with levofloxacin eye gel+ sodium hyaluronate eye solution; The other 90 cases in group B took Tobramycin and Dexamethasone Ophthalmic Ointment+ sodium hyaluronate eye drops for curing the MGD. In addition, the same comprehensive therapy were used to the MGD patients in groups A and B, after surface anesthesia on binoculus, secretion, obstructing meibomian gland secretions, were discharged by utilizing cotton stick to extrusion mass weekly and four times consecutive treatments were regard as a course of treatment. To remove residual the thin oil soften lipid in meibomian gland, heat can be applied to the eyelids with hot water(around 45℃)on towel for 15min and do that three times a day. After each hot compress, we use levofloxacin eye gel to the patients in group A by dropping into the conjunctival sac and apply to the root of the eyelid lashes. The group B of 90 patients were applied Tobramycin and Dexamethasone Ophthalmic Ointment to the root of the eyelid lashes. All patients were dripped odium eye drops eye into their eyes four times a day.

RESULTS: After treatment(Z= -0.64, P=0.524), there were no significant differences in clinical symptoms(Z= -1.37, P=0.171), secretion characteristics(Z= -1.06, P=0.288), tear film rupture time and tear secretion time between groups A and B(P>0.05). Corneal fluorescence staining score: group A(cured 83.3%, improved 11.1%, ineffective 5.6%)and group B(cured 55.6%, improved 27.8%, ineffective 16.7%). The therapeutic effect of group A was better than that of group B, with statistical significance(Z= -4.02, P<0.001).

CONCLUSION: Physical therapy for meibomian gland dysfunction caused by evaporative dry eye is given priority, and medication is treated as adjunctive therapy. Generally, the patients can achieve totally anti-inflammatory, antibacterial, safe and stable, without side effects by using levofloxacin eye gel. However, the patients with worst condition and lingering illness should cured by Tobramycin and Dexamethasone Ophthalmic Ointment. In addition, statistical significant difference is not found between the two drugs on curative effects.