Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1981:79:307-34.

Increased retinal oxygen supply following pan-retinal photocoagulation and vitrectomy and lensectomy

E Stefansson, M B Landers 3rd, M L Wolbarsht

Increased retinal oxygen supply following pan-retinal photocoagulation and vitrectomy and lensectomy

E Stefansson et al. Trans Am Ophthalmol Soc. 1981.

Abstract

Panretinal photocoagulation as well as vitrectomy are the main treatment modalities for diabetic and other proliferative retinopathies. We show that both treatments introduce a new source of oxygen to the inner retina and propose that their efficacy in controlling the retinopathy results from their effect on the oxygenation of the inner retina. Panretinal photocoagulation reduces the oxygen consumption of the outer retina and allows more oxygen to diffuse to the inner retina from the choroid. Vitrectomy/lensectomy on the other hand allows aqueous humor to flow back to the retina and give oxygen to the inner retina which normally has a lower PO2 than aqueous humor. This causes the PO2 in aqueous humor to fall.

PubMed Disclaimer

References

    1. Invest Ophthalmol Vis Sci. 1979 Oct;18(10):1025-9 - PubMed
    1. Circulation. 1963 Mar;27:375-85 - PubMed
    1. Exp Eye Res. 1975 Jun;20(6):531-40 - PubMed
    1. Invest Ophthalmol. 1965 Apr;4:226-34 - PubMed
    1. Albrecht Von Graefes Arch Klin Exp Ophthalmol. 1968;174(4):321-5 - PubMed

LinkOut - more resources