Abstract:

Purpose: Evaluation of the effect of pupilla dilatation on the optic pressure and cornea biomechanics using the ocular response analyzer in the primary open angle glocom (PAAG) eyes\nPatients and methods: 0.5% of the eyes of the 15 PAAG events before and 30 minutes after the application of tropicamide (GIBG) in the eye, GIB (GIB), cornea resistance factor (KRF) and cornea hysteresis (KH) combined with the biomechanical characteristics of the cornea were assessed.\nAverages: The average age of the events was 57.7±13.2 (45-65 years).  The average before application of Tropikamid KH 9.5±2.2 mmHg, KRF 10.1±2.1 mmHg, GIBg 16.2±2.8 mmHg and GIBkk 17.2±3.6 mmHg, while after application these values were identified as 9.7±2.2 mmHg, 10.1±2 mmHg, 16.9±3.5 mmHg and 18.2±4 mmHg respectively. While the difference in the GIBg and GIBkk values before and after the application of Tropikamid is statistically meaningful (p=0.043, p=0.015, respectively; paired t-test), there is no statistically meaningful difference for KH and KRF (p=0.057 p=0.702, respectively; paired t-test). The result: in PAAG cases, the pupilla dilatation created with 0.5 % tropicamide has a reducing effect on the GIB while no effect on corneal biomechanics is observed.