In this study, intraocular pressure (IOP) was measured in sitting, supine, prone, and standing (ST) positions and again five minutes after standing (ST-5) utilizing a Tono-Pen AVIA in 124 eyes of 62 healthy subjects with ages ranging from 21 to 59 years (mean 30 +/- 10 years). In each subject, the average IOP of both eyes was used for the statistical evaluation. The mean IOP difference between the ST and sitting positions was -0.13 +/- 1.63 mmHg (p = 0.548); between ST-5 and sitting, it was 0.53 +/- 1.24 mmHg (p = 0.001); between supine and sitting, it was 1.30 +/- 1.48 mmHg (p < 0.001); between ST and supine, it was -1.43 +/- 1.74 mmHg (p < 0.001); between ST-5 and supine, it was -0.77 +/- 1.59 mmHg (p < 0.001); between prone and supine, it was 2.24 +/- 1.92 mmHg (p < 0.001); between ST and ST-5, it was -0.67 +/- 1.84 mmHg (range: -7.5 to 5 mmHg) (p = 0.007); between prone and ST, it was 3.46 +/- 2.01 mmHg (p < 0.001); between ST-5 and prone, it was -2.46 +/- 1.67 mmHg (p < 0.001); and between sitting and prone, it was -3.22 +/- 1.56 mmHg (p < 0.001). The results show a significant IOP increase in the ST-5 position, suggesting that such measurements need to be performed in an attempt to explain the progression of glaucoma in apparently normal-tension patients.
Intraocular Pressure Measurements in Standing, Sitting, Prone, and Supine Positions
De Bernardo, Maddalena;Cione, Ferdinando
;De Pascale, Ilaria;Pagliarulo, Sergio;Rosa, Nicola
2024
Abstract
In this study, intraocular pressure (IOP) was measured in sitting, supine, prone, and standing (ST) positions and again five minutes after standing (ST-5) utilizing a Tono-Pen AVIA in 124 eyes of 62 healthy subjects with ages ranging from 21 to 59 years (mean 30 +/- 10 years). In each subject, the average IOP of both eyes was used for the statistical evaluation. The mean IOP difference between the ST and sitting positions was -0.13 +/- 1.63 mmHg (p = 0.548); between ST-5 and sitting, it was 0.53 +/- 1.24 mmHg (p = 0.001); between supine and sitting, it was 1.30 +/- 1.48 mmHg (p < 0.001); between ST and supine, it was -1.43 +/- 1.74 mmHg (p < 0.001); between ST-5 and supine, it was -0.77 +/- 1.59 mmHg (p < 0.001); between prone and supine, it was 2.24 +/- 1.92 mmHg (p < 0.001); between ST and ST-5, it was -0.67 +/- 1.84 mmHg (range: -7.5 to 5 mmHg) (p = 0.007); between prone and ST, it was 3.46 +/- 2.01 mmHg (p < 0.001); between ST-5 and prone, it was -2.46 +/- 1.67 mmHg (p < 0.001); and between sitting and prone, it was -3.22 +/- 1.56 mmHg (p < 0.001). The results show a significant IOP increase in the ST-5 position, suggesting that such measurements need to be performed in an attempt to explain the progression of glaucoma in apparently normal-tension patients.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.