Syndrome differentiation and treatment
In clinic, the disease is usually classified into the syndromes of initial affection of epidemic and noxious pathogenic factors, excessive fire of the liver and gallbladder, and lingering pannus due to latent pathogenic factors. Since the disease arises from the meridians of the liver and lung or from lung involving liver, treatment should focus on removing pathogenic heat from the lung and liver simultaneously. And, according to the severity of the two involved organs, treatment should mainly be put on removing pathogenic heat either from the liver or from the lung.

1. Syndrome of Initial Affection of Epidemic and Noxious Pathogenic Factors
Main Symptoms and Signs: At the beginning, photophobia and dacryorrhea with alternate itching and unsmooth sensations, obvious redness and slight swelling of the bulbar conjunctiva, sometimes visible star-like corneal pannus, fever and aversion to cold, and stuffy nose with discharge; thin whitish tongue coating and floating rapid pulse.
Therapeutic Methods   Dispelling wind and removing heat.

2. Syndrome of Excessive Fire of the Liver and Gallbladder
Main Symptoms and Signs: Serious photoporbia and dacryorrhea, conjunctival hyperemia and even ciliary hyperemia, dense gray-white starry pannus of the superficial cornea in a large spotty shape, bitter taste in the mouth and dry throat; red tongue with yellowish coating and thready, rapid and strong pulse.
Therapeutic Method: Removing pathogenic fire by purging the liver.

3. Syndrome of Lingering Pannus due to Latent Pathogenic Factors 
Main Symptoms and Signs: Symptomatic relief and disappearance of redness and pain of the affected eye, while starry corneal nebula in large spotty shape still being remained, accompanied sometimes by photophorbia, dacryorrhea and poor vision, bitter taste in the mouth and dry throat; thin whitish tongue coating and thready pulse.
Therapeutic Methods: Removing pathogenic heat by calming the liver, and improving visional acuity by relieving nebula.