OXT and glaucoma: Furthermore, in 33 patients who underwent at least five visual field tests over a two-year period following oxytocin measurements and received no surgical interventions during that time, we determined whether the oxytocin levels were correlated with MD slope and sectoral TD slopes.<h4>Results</h4>Oxytocin levels in glaucoma patients were significantly lower than in age- and sex-matched normal controls (723.34 ± 303.44 vs. 557.59 ± 296.04 pg/ml, p=0.002).