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Topical exposure of ovine eyes with 1000 ppm NO is associated with increased nitrate and nitrite levels in AqH. (A) Nitrate and (B) nitrite levels increased when lamb eyes were exposed to 1000 ppm NO gas for an hour (nitrate: control [n = 6] versus NO [n = 8], P < 0.001; nitrite: control [n = 6] versus NO [n = 8]). ***P < 0.001.
