This section is from the book "Materia Medica And Therapeutics Inorganic Substances", by Charles D. F. Phillips. Also available from Amazon: Materia medica and therapeutics.
The same may be said of cyanic lotions and vapors in the treatment of eye disease, for which at one time they were in vogue. J. V. Solomon recorded numerous cases of conjunctivitis (sub-acute), ophthalmia, iritis, photophobia, etc., which were relieved by applications of dilute Scheele's acid, 1 part in 3 (Medical Times, i., 1852). Turnbull invented an instrument for applying the strong vapor to the eye, but this sometimes produced serious symptoms; in one case of its use, Sir W. Wilde describes faintness, giddiness, and unconsciousness (Medical Times, i., 1861). Nunnely records that he found strong applications to the conjunctiva poison as quickly as by the stomach ("Transactions Prov. Med. Surg. Association," N. S., iii., p. 58).