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Abstract #123295 Published in IGR 25-1
Intraocular Pressure Measurements in Standing, Sitting, Prone, and Supine Positions
De Bernardo M; Cione F; De Pascale I; De Pascale I; Pagliarulo S; Rosa NJournal of personalized medicine 2024; 14:
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 ( = 0.548); between ST-5 and sitting, it was 0.53 ± 1.24 mmHg ( = 0.001); between supine and sitting, it was 1.30 ± 1.48 mmHg ( < 0.001); between ST and supine, it was -1.43 ± 1.74 mmHg ( < 0.001); between ST-5 and supine, it was -0.77 ± 1.59 mmHg ( < 0.001); between prone and supine, it was 2.24 ± 1.92 mmHg ( < 0.001); between ST and ST-5, it was -0.67 ± 1.84 mmHg (range: -7.5 to 5 mmHg) ( = 0.007); between prone and ST, it was 3.46 ± 2.01 mmHg ( < 0.001); between ST-5 and prone, it was -2.46 ± 1.67 mmHg ( < 0.001); and between sitting and prone, it was -3.22 ± 1.56 mmHg ( < 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.
Eye Unit, Department of Medicine Surgery and Dentistry, "Scuola Medica Salernitana", University of Salerno, 84081 Salerno, Italy.
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