Three Cases of Hydatid Cyst Situate in the Eye or in the Orbit

(From the Government Ophthalmic Hospital, Madras.) Hydatid cyst of the orbit has been spoken of by Mr. Devereux Marshall as one of the " rarities of surgery, " whilst in the ej'eball itself, he had been only able to find the records of three cases, when he published his own case of orbital hydatid in 1904. The fact that we have met with no less than three cases of hydatid in and about the eye in three years, and that too in a country where hydatid is admittedly very rare seems to call for the publication of the notes of these cases. Nor is the interest lessened by the fact that whilst two are cases of orbital hydatid, one was situate on the globe itself.