The shell of Haliotis diversicolor Reeve, H gigantea discus Reeve and
H ovina Chemnitz, family Haliotidae.
A spiral single shell, outer surface elliptical, inner surface auriculate,
3-9 cm long, 2-5 cm broad, 2-3 cm high or more. Dorsal side slightly protruding,
coarse, grey-brown; umbo deviated to one side, slightly protruding, with
dextrorotatory stflae and growth lines; a row of respiratory pores arranged
from the umbo downwards along the right margin of the shell, about 30
in number, the last 4-9 of which open at the same level of the outer surface.
The ventral side is a broad shell opening. Inner surface shining like
pearls. Prepared as white powder. Salty in taste, mild in nature, and
attributive to liver channel.
Calm the liver, benefit yin and suppress the sthenic yang: for sthenia
of liver-yang or deficiency of yin leading to hyperactivity of yang manifested
as dizziness, headache, tinnitus, irritability and insomnia.
2. Clear away liver-fire to improve visual acuity: For conjunctivitis
of liver-heat type, used together with Spica Phineline and Semen Cassiae;
for night blindness, used together with Rhizoma Atractylodis; for blurring
of vision due to liver-deficiency, used together with Fructus Lycii and
Semen Cuscutae; for nebula, ointment should be applied topically.
3. Antacid and analgesic: For stomachache and regurgitation.
1. Improves eyesight.
Decoction: 15-30g, crushed and decocted first. Powder: 2-3g bid or
External use: Appropriate amount.