What question did this study set out to answer?

To assess the accuracy of self-measured intraocular pressure (IOP) with iCare-HOME2 compared to professional measurements.

June 13, 2026Open Access

Supine and Sitting Intraocular Pressure Measurements Using iCare HOME2 Self-Tonometry and iCare IC200 Rebound Tonometry in Japanese Open-Angle Glaucoma Patients

Puntos clave

To assess the accuracy of self-measured intraocular pressure (IOP) with iCare-HOME2 compared to professional measurements.
Measured IOP in sitting and supine positions using Goldmann applanation tonometry, iCare, and iCare-HOME2.
Examined 36 glaucoma patients (36 eyes) with statistical analyses including ANOVA and intraclass correlation coefficients.
Conducted Bland–Altman analysis to gauge measurement agreement.
Mean IOPs for sitting were 15.8 mmHg (GAT), 13.6 mmHg (iCare), 14.6 mmHg (iCare-HOME2) with P ≤ 0.049.
In supine position, IOPs were consistently 16.8 mmHg for both iCare and iCare-HOME2 (P = 0.99).
High ICC of 0.976 in supine position indicates strong agreement for self-measurement accuracy.

Resumen

Purpose: To evaluate supine and sitting intraocular pressure (IOP) self-measurements using iCare-HOME2 self-tonometry (iCare-HOME2) and to compare the results with corresponding iCare IC200 IOP (iCare) measurements by health care professionals on Japanese glaucoma patients. Methods: Thirty-six eyes of 36 consecutive primary open-angle and normal-tension glaucoma patients were examined. IOP was measured in sitting position using Goldmann applanation tonometry (GAT), iCare, and iCare-HOME2 self-tonometry, then after a 10-minute supine rest with iCare tonometry and iCare-HOME2 self-tonometry in supine position. ANOVA, intraclass correlation coefficients (ICC) and Bland–Altman analyses were used. Results: Mean IOPs were 15.8 mmHg (GAT), 13.6 mmHg (iCare), and 14.6 mmHg (iCare-HOME2) in sitting (P ≤ 0.049), and 16.8 mmHg (iCare) and 16.8 mmHg (iCare-HOME2) in supine position (P = 0.99). ICCs between iCare-HOME2 and iCare were 0.899 (95% CI, 0.712– 0.957) in sitting and 0.976 (95% CI, 0.954– 0.988) in supine position. Bland–Altman analysis showed minimal bias in both positions (mean differences: 1.03 mmHg limits of agreement: − 2.07 to 4.14 in sitting; and − 0.003 mmHg − 2.18 to 2.17 in supine position). Conclusion: iCare-HOME2 self-tonometry can accurately measure IOP in both sitting and supine positions. Based on the ICC values, the agreement between IOP values measured by health-care professionals with iCare and by trained open-angle glaucoma patients with iCare HOME2 was higher in the supine position than in the sitting position. Our results suggest that self-measured sitting and supine iCare-HOME2 IOP data are reliable on trained glaucoma patients and may potentially be applied to assist clinical decision making in glaucoma care. Keywords: iCare IC200, iCare HOME2 self-tonometry, intraocular pressure, glaucoma, rebound tonometry, supine position

Preguntar a la IA

Me gusta

Guardar

Ver artículo completo