[Skip to Content]
Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address 54.211.227.36. Please contact the publisher to request reinstatement.
[Skip to Content Landing]
Article
October 1959

RADIOACTIVE ISOTOPES

Author Affiliations

260 William St. Melbourne C. 1, Australia

AMA Arch Ophthalmol. 1959;62(4):729-730. doi:10.1001/archopht.1959.04220040191025

This article is only available in the PDF format. Download the PDF to view the article, as well as its associated figures and tables.

Abstract

To the Editor:  —My attention has been directed to an article by Dr. J. W. Bettman, in A. M. A. Archives of Ophthalmology (59:821 [June] 1958), entitled Radioactive Isotopes.I quote from page 825 paragraph 15: "The therapy of intraocular tumors, usually retinoblastomas, by suturing radioisotopes to the sclera,29,31,34... is not new.... They depend upon β-emissions for their therapeutic effect, the α-emissions not penetrating the eye and the γ-emissions being very weak." The three references given here include one to an article by Dr. Arthur Joyce and myself entitled Treatment of Intraocular Tumors with Radon.This statement concerning radon seeds which we use is not correct.The radon seeds are prepared by the Commonwealth X-ray and Radium Laboratory and have wall thicknesses of gold equivalent to platinum filtration of either 0.3 or 0.5 mm.No α-rays are emitted, the β-rays contributions through the above filtrations are approximately 10% and

First Page Preview View Large
First page PDF preview
First page PDF preview
×