_Operation._--On May 13, 1907, the eyes being quiet, and light perception and projection fair, V-shaped iridotomy was performed on both eyes. The leucomatous areas in the upper part of cornea necessitated making the pupil below. In O. D. the pupil opened up beautifully (Fig. 44), but in O. S. a tag of iris hung fast (Fig. 45) and was again incised two months later. The artist has illustrated the remaining portion of this tag very well. As soon as the iris tissue was incised it retracted, making the pupils larger than the area of incision. The test for glasses, nearly a year later, March 15, 1908, yielded the following result: O. D. S + 13 D ⁐ C + 4.75 D ax. 105° = 20/40. O. D. S + 13 D ⁐ C + 3 D ax. 65° = 20/40. Add O. D. S + 4 D = J. 10. O. S. S + 4 D = J. 10. These were ordered in biconvex torics. She had worn glasses for a year, but claims vision is much better with the new ones. This seems like an excellent result when we consider that these eyes had passed through glaucoma, iridochorioiditis and cataract, followed by membranous occlusion of pupil, lowered tension and fluid vitreous. The high hyperopia and astigmatism show the phthisical condition of each globe. There is marked cupping of both nerve heads and the fields are contracted. [Illustration: Fig. 44, (Case 3).--Iridotomy in a soft eyeball, with thin membrane and iris bombé.] [Illustration: Fig. 45, (Case 3).--Iridotomy showing apex of iris flap after incision through adherent fibers.] Case 4.--_History._--Mrs. B. M., aged 64 years. O. S. struck by a stone in childhood, destroying vision. Dense leucoma above, chorioidal cataract, calcareous deposit; exclusion of pupil. T--1. Lpc. good. Lpj. fair. O. D. recurrent attacks of inflammation for seven years, posterior synechiæ and cataract. Counts fingers at 6 inches. Extraction with iridectomy, both eyes, in 1907. Site of incision has become densely leucomatous. O. D. shows capsular area above, iris drawn up. O. S. complete membranous occlusion of pupil. _Operation._--Oct. 7, 1907, V-shaped incision was executed entirely in the iris tissue of O. D., the pupil spreading out into an ovoid shape (Fig. 46), leaving area of capsule and small band of iris above. O. S. was operated on Jan, 13, 1908, by the same method, the resulting pupil being almost round (Fig. 47) owing to the resilient iris tissue. The test for glasses, March 10, 1908, gave the following result: O. D. S + 12 D ⁐ C + 1.25 D ax. 135° = 20/50. O. S. S + 12 D ⁐ C + 1.25 D ax. 135° = 20/70. Add O. D. S + 5 D = J. 6. O. S. S + 5 D = J. 12. These were ordered in biconvex torics, which she now wears with great comfort. It is worth noting that O. S. still retained good visual acuity, although blinded by an injury nearly fifty years before. [Illustration: Fig. 46, (Case 4).--Irido-capsulotomy, with band of iris, and capsule in coloboma above.]