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.

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.

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.

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.