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.