A New Cyclodialysis Instrument*

A New Cyclodialysis Instrument*

NOTES, CASES, INSTRUMENTS treatment is more accurately controlled and without the dangers of radiumirradiation cataract and macular exudates. In their...

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NOTES, CASES, INSTRUMENTS treatment is more accurately controlled and without the dangers of radiumirradiation cataract and macular exudates. In their case, Cordes and Hagen 3 found, one year after X-ray therapy, a decrease in size of the tumor, the exudate lessened, but the vessels unaltered. They believe that localized radium therapy in cases of early involvement pro­ duces a greater effect than roentgen ir­ radiation. Angiomatosis retinae is a rare but wellrecognized entity. As Cordes and Hagen

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have pointed out interest now lies in therapy rather than diagnosis. The prog­ ress of this girl will be watched with in­ terest. Advances in irradiation therapy and neurosurgical skill in the treatment of cerebellar angiomatous cysts make the prognosis more favorable than in the past. I believe the unfavorable result of irra­ diation therapy as seen at this time would suggest the use of surface diathermy and micropuncture or localized radium therapy to the early lesion in the right eye.

REFERENCES 1

Grinker, R. R. Modern trends in ophthalmology. Edited by R. Ridley and A, Sorsby, New York, Paul B. Hoeber, 1940. 2 Kaye, Herbert. Arch, of Ophth., 1941, v. 25, March, pp. 443-444. ' Cordes, F. C, and Hagen, M. J. Arch, of Ophth., 1940, v. 23, Feb., 253-269.

A N E W CYCLODIALYSIS INSTRUMENT* M. ELLIOTT RANDOLPH,

M.D.

Baltimore, Maryland

The instrument shown in the accom­ panying illustration was devised for the purpose of injecting air into the anterior chamber after cyclodialysis. A no. -20 intravenous needle was bent to conform to the usual cyclodialysis in­ strument, its end flattened and smoothed off. The needle was then attached to a 2-c.c. hypodermic syringe. At operation, air is drawn into the syringe and cyclodi­ alysis performed in the usual manner. At its completion, air is gently forced into the anterior chamber. It is the opinion of those who have used this instrument that the immediate filling of the anterior chamber with air definitely lessens the incidence of anterior-chamber hemorrhage. * From the Wilmer Ophthalmological Insti­ tute of The Johns Hopkins Hospital and Uni­ versity.

In addition to its use as our instrument for cyclodialysis, it has been successfully used for air injection in a patient suf­ fering from aniridia and glaucoma, when, following a filtration operation, the lens was displaced forward into the anterior

Fig. 1 (Randolph). Instrument for injecting air into the anterior chamber following cyclo­ dialysis.

chamber, with resultant return of in­ creased intraocular pressure. Due to its curved end, the usual stylette cannot be inserted. Therefore, to prevent clogging, alcohol and ether must be run through the needle immediately after its use.