The fact that there are so many operative methods for the removal of pterygiums shows that until now none of them has given entirely satisfying results to all surgeons. Therefore a method is described which I developed in association with Dr. C. Iklé when in charge of an ophthalmic department in Switzerland. There, as in private practice, the results were uniformly satisfactory, and up to this writing there has been no recurrence. The operation does not advance anything fundamentally new, being combined with other plastic procedures. However, it is the combination and the addition of some important details that gives greatly improved results.
A pterygium can give rise to two types of impaired vision : In advanced stages it causes a partial or complete opacity of the pupillary region of the cornea, and in the early stages it often causes astigmatism by reason of flattening of the corneal curvature, which may