Experiments on the absorption of argon and krypton laser by blood.

Abstract:

:Experiments were performed to determine the absorption by and transmission through blood of argon blue-green (ABG) and green (AG) and krypton red (KR) laser light. Krypton was transmitted better through intact erythrocytes than argon. The difference between krypton and argon was greater if the erythrocytes contained oxygenated hemoglobin (Hb) than deoxygenated Hb. None of the wavelengths penetrated well a confluent blood specimen only 4 cells thick. Branch retinal vein occlusions were created in monkeys causing scattered areas of retinal hemorrhage. Argon burns placed in areas of retinal hemorrhage caused much inner or full thickness retinal damage. Krypton passed through the inner retinal hemorrhage without causing damage and created a burn at the level of the retinal pigment epithelium and inner choroid. Preretinal hemorrhages were created in rabbits by perforating Bruch's membrane with a high intensity krypton burn. Argon burns placed over the preretinal hemorrhages were absorbed much more than krypton burns. Neither argon or krypton however could penetrate even moderately thick preretinal hemorrhages to cause an underlying retinal burn.

journal_name

Ophthalmology

journal_title

Ophthalmology

authors

Folk JC,Shortt SG,Kleiber PD

doi

10.1016/s0161-6420(85)34083-6

subject

Has Abstract

pub_date

1985-01-01 00:00:00

pages

100-8

issue

1

eissn

0161-6420

issn

1549-4713

pii

S0161-6420(85)34083-6

journal_volume

92

pub_type

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