1M.D. Bozyaka Training and Reseach Hospital, Eye Clinic, Izmir/TURKEY 2M.D. Kırkagac State Hospital, Eye Clinic, Manisa/TURKEY 3M.D. Tepecik Training and Reseach Hospital, Eye Clinic, Izmir/TURKEY 4M.D. Associate Professor, Bozyaka Training and Reseach Hospital, Eye Clinic, Izmir/TURKEY
Purpose: To compare intraocular pressure (IOP) changes between sitting and supine position in individuals with pseudoexfoliation syndrome
(PXS) and healthy volunteers.
Materials and Methods: Fifty five eyes with PXS and 49 eyes of healthy individuals were included in this prospective, controlled study. Slit
lamp examination, gonioscopy and IOP measurement with iCare tonometer (ICT) in sitting and supine positions were performed to all patients
in both groups.
Results: Mean age was 67.3 years in PXS group and 66.3 years in control group (p=0.432). Mean IOP in sitting position with ICT was 16.2±3.4
mmHg in PXS group and 16.7±2.9 mmHg in the control group (p=0.368). Mean IOP with GAT was 0.4 mmHg higher than ICT measurements
in PEX group (p=0.055). Mean IOP with GAT was 0.32 mmHg higher than ICT measurements in control group (p=0.207). Mean IOP measured
with ICT in supine position was 19.9±4.1 mmHg in PXS group and 19.0±3.2 mmHg in control eyes (p=0.348). We noticed that mean IOP rise
was 3.65 mmHg in PXS group and 2.25 mmHg in the control group in supine position (p<0.001, p<0.001; respectively). When compared with
the control group, IOP rise in supine position was statistically significant in PXS group (p<0.001).
Conclusion: IOP rises significantly in supine position both PXS and control groups, but this increase is more in PXS groups. IOP measurement
with ICT is reliable and practical for supine and sitting body positions.