Abstract
1) The results of eye-reaction (subconjunctival injection) carried out with Mitsuda's reaction agree with those of the latter, namely, negative by lepromatous and positive by tuberculoid and neural leprosy.
2) In the case of lepromatous leprosy of which lepromatous infiltration has been absorbed and Mitsuda's reaction has become positive, the eye reaction also presents positive.
3) The leprous pannus in the cornea does not always disappear when the eye and Mitsuda's reactions has become positive after the antileprotic treatment, because of the vacuolization of bacilli and the presence of vacuolized lepra cells.
4) One case is reported in which the eye reaction was useful as a mean of diferenciating the leprous or nonleprous nature of the swelling in the eye with a lepromatous patient whose diagnosis was under doubt of neural type and Mitsuda's reaction positive.
