Abstract
Purpose: :
To compare the diurnal curve test (DC) with the 30-degree inverted body position test on intraocular pressure (IOP) in normal patients, suspected glaucoma patients, and glaucoma patients
Methods: :
Based on clinical evaluation of the optic disc, IOP, and standard achromatic perimetry (SAP) of 79 eyes, 18 were "normal" (normal SAP and optic disc evaluation, and IOP < 21 mmHg), 30 were "glaucoma suspect" (GS; normal SAP, cup/disc (C/D) ratio > 0.5 or asymmetry > 0.2 and/or ocular hypertension), and 31 had "early glaucoma" (MD < -6 dB, glaucomatous optic neuropathy). SAP was performed with the Octopus 3.1.1 Dynamic 24-2 program. Six IOP measurements were performed at 6AM, 9AM, 12PM, 3PM, 6PM and 9PM. In the 30-degree inverted position, IOP measurement with Perkins applanation tonometer was taken after five minutes lying down.
Results: :
There was no difference between peak IOP on DC and inverted position IOP in normal patients (p=0.06). In suspected glaucoma patients (p=0.003) and glaucoma patients (p=0.008) IOP measurements were lower in the DC test in comparison to the inverted position test.
Conclusions: :
The 30-degree inverted position test showed higher IOP values in suspected glaucoma and glaucoma patients. This new provocative test is easier, faster and more comfortable for both patients and doctors.
Keywords: intraocular pressure • development