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N Efron, L G Carney; Oxygen levels beneath the closed eyelid.. Invest. Ophthalmol. Vis. Sci. 1979;18(1):93-95.
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The level of oxygen at the anterior corneal surface beneath the closed eyelid is shown to be equivalent to an atmosphere of 7.7% oxygen. This finding is in good agreement with assumptions which have been based on the oxygen level at the palpebral conjunctiva. However, in some instances a significant amount of oxygen is derived not only from the palpebral conjunctiva but also from the atmosphere as a result of an imperfect palpebral aperture seal.
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