Purpose: To determine if mydriasis and accommodation affect intraocular pressure (IOP) and pigment release in patients with the pigment dispersion syndrome (PDS).
Material and methods: Seventeen patients (34 eyes) diagnosed with PDS were included in the study (10 men and 7 women). Tonometry was performed on all patients before, and at 1 and 2 hours after mydriasis and before, and at 1 and 2 hours after sustained reading. The statistical analysis was performed using the paired T-test.
Results: In both tests the differences in intraocular pressure values were not statistically significant. Pigment liberation occurred in 11.8% of patients after mydriasis but was not associated with an increase in IOP.
Conclusion: Accommodation during sustained reading did not cause significant pigment release or an IOP rise.