Pressure-curve variations after trabeculectomy for chronic primary open-angle glaucoma.

Area of Science:

• Ophthalmology
• Glaucoma Research
• Surgical Interventions

Background:

• Open-angle glaucoma is characterized by elevated intraocular pressure (IOP).
• Diurnal IOP fluctuations can contribute to glaucoma progression.
• Trabeculectomy is a common surgical procedure for glaucoma management.

Purpose of the Study:

• To evaluate the long-term effect of trabeculectomy on maximum IOP.
• To assess the impact of trabeculectomy on the diurnal oscillation amplitude of IOP.
• To analyze these effects over a 5-year period in open-angle glaucoma patients.

Main Methods:

• A 5-year prospective study involving 26 eyes of 14 patients with open-angle glaucoma.
• Intraocular pressure (IOP) and its diurnal variations were recorded before surgery.
• Pressure-curves were re-evaluated at 1 year and 5 years post-trabeculectomy.

Main Results:

• Trabeculectomy led to a significant reduction in maximum IOP compared to preoperative levels.
• The amplitude of diurnal IOP oscillations was also significantly decreased 1 and 5 years after surgery.
• Sustained IOP reduction and stabilization were observed throughout the 5-year follow-up.

Conclusions:

• Trabeculectomy is an effective surgical treatment for reducing both peak IOP and IOP variability in open-angle glaucoma.
• The study demonstrates the sustained efficacy of trabeculectomy in managing glaucoma over a 5-year period.
• These findings support trabeculectomy as a valuable option for long-term glaucoma control.