Syndrome differentiation and treatment
In clinic, the disease is classified into the syndromes qi, accumulation of endogenous phlegm-heat and hemorrhage due to blood heat. The treatment, therefore, should respectively consist of the nourishing, phlegm removing and blood-cooling methods.

1. Syndrome of Deficiency of the Liver and Kidney
Main Symptoms and Signs: Dim eyesight, metamorphopsia, glass membrane wart and pigmentary disturbance in mucula; neonatal vessels in choroid; accompanied by the general symptoms of dizziness, tinnitus, lassitude in loin and legs; blackish tongue with thin coating and thready thin or thin unsmooth pulse.
Therapeutic Method: Nourishing the liver and kidney to improve vision.

2. Syndrome of Asthenia of Spleen Qi
Main Symptoms and Signs: The same ocular symptoms as the above one, accompanied by the general symptoms of mental fatigue, lassitude, loss of appetite, short breath and no desire to speak; whitish tongue with thin coating and thready thin pulse.
Therapeutic Method: Nourishing spleen qi.

3. Syndrome of Accumulation of Endogenous Phlegm-dampness
Main Symptoms and Signs: Exudative degeneration of macula in fundus examination, accompanied by the general symptoms of dizziness, tinnitus, short breath, palpitation, obesity physique and massive sputum; whitish smooth or yellowish greasy tongue coating and thready slippery pulse.
Therapeutic Method: Removing phlegm and dampness.

4. Syndrome of Hemorrhage due to Blood Heat
Main Symptoms and Signs； In addition to the above ocular symptoms, others including hemorrhage of macula and general accompanying symptoms of dizziness, dryness in the mouth and throat, sleeplessness, dreaminess and constipation; reddish tongue and rapid pulse.
Therapeutic Method: Removing heat by cooling blood.