Below are the main rubriks (i.e strongest indications or symptoms) of Causticum in traditional homeopathic usage, not approved by the FDA.
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Photophobia whole day, constantly obliged to wink.
Flickering or sparks before the eyes.
Sight obscured as from a gauze before the eyes; as from a mist; momentarily, on blowing the nose.
Perpendicular half sight in cataract; has arrested cataract.
Pain in the eyes, as if sand were in them.
Pressive pain in the eyes, worse from touch.
Constant inclination to touch and rub the eye, which seems to relieve a pressure in it.
Eyes inflamed; burning, red, dry, stinging.
Smarting and pressure in eyes, which seem heavy; lids red.
Itching of the eyes, especially of the lids.
Inclination to close the eyes, lids seem heavy; even paralysis of upper lids.
Weakness of the recti muscles.
Blepharitis, especially if better in fresh air.
Agglutination of the lids.
Lachrymation even in room, though worse in open air.
Corrosive lachrymation, pains shooting, extend up into the head; scrofulous ophthalmia.
Old warts on eyebrows, lids or nose.≡ more ...