Primary Open Angle Glaucoma (POAG)
Conditions
Keywords
Primary Open Angle Glaucoma, Deep Sclerectomy, Trabeculotomy, Ultrasoun Biomicroscopy
Brief summary
Primary open-angle glaucoma is a chronic optic neuropathy that often requires surgical intervention when medical treatment fails. Deep sclerectomy is a non-penetrating glaucoma surgery that aims to reduce intraocular pressure while minimizing complications. When combined with trabeculotomy, additional aqueous outflow may be achieved. Ultrasound biomicroscopy (UBM) allows detailed imaging of the anterior segment and provides valuable information about postoperative anatomical changes that cannot be assessed clinically. This observational study aims to evaluate UBM findings after combined deep sclerectomy with trabeculotomy in patients with primary open-angle glaucoma and to correlate these findings with clinical outcomes.
Detailed description
This is a prospective observational study conducted at Minia University Hospital on patients diagnosed with primary open-angle glaucoma who underwent combined deep sclerectomy with trabeculotomy. Patients are evaluated postoperatively using ultrasound biomicroscopy to assess anterior segment structures, including the intrascleral lake, filtering bleb characteristics, and trabeculo-Descemet membrane. Clinical parameters such as intraocular pressure, number of antiglaucoma medications, and postoperative outcomes are recorded and correlated with UBM findings. The study aims to identify anatomical predictors of surgical success and to enhance understanding of postoperative changes following combined non-penetrating glaucoma surgery.
Interventions
DIAGNOSTIC_TESTUltrasound Biomicroscopy
Ultrasound biomicroscopy is performed as a non-invasive diagnostic imaging procedure to evaluate postoperative anterior segment anatomy, including intrascleral lake characteristics and filtering bleb morphology, in patients with primary open-angle glaucoma following combined deep sclerectomy with trabeculotomy.
Sponsors
Minia University Hospital
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Healthy volunteers
No
Inclusion criteria
* Diagnosis of primary open-angle glaucoma (POAG), including juvenile open-angle glaucoma (JOAG). * Patients who underwent combined deep sclerectomy with trabeculotomy. * Clear media allowing adequate ultrasound biomicroscopy imaging. * Written informed consent obtained from the patient .
Exclusion criteria
* Secondary glaucomas (e.g., neovascular, uveitic, traumatic, or angle-closure glaucoma). * Previous glaucoma filtering surgery in the studied eye. * Coexisting ocular pathology affecting UBM assessment (e.g., severe corneal opacity, scleral pathology).
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Intrascleral lake area on ultrasound biomicroscopy (UBM) | 3 and 6 months postoperatively | Quantitative measurement of intrascleral lake area (mm²) using ultrasound biomicroscopy after combined deep sclerectomy with trabeculotomy. |
| Intrascleral lake height on ultrasound biomicroscopy (UBM) | 3 and 6 months postoperatively | Quantitative measurement of intrascleral lake height (mm) using ultrasound biomicroscopy after combined deep sclerectomy with trabeculotomy. |
| Filtering bleb height on ultrasound biomicroscopy (UBM) | 3 and 6 months postoperatively | Quantitative measurement of filtering bleb height (mm) using ultrasound biomicroscopy after combined deep sclerectomy with trabeculotomy. |
| Filtering bleb internal reflectivity on ultrasound biomicroscopy (UBM) | 3 and 6 months postoperatively | Semi-quantitative assessment of filtering bleb internal reflectivity on ultrasound biomicroscopy after combined deep sclerectomy with trabeculotomy. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change in intraocular pressure | 3 and 6 months postoperatively | Change in intraocular pressure (mmHg) from baseline to 3 and 6 months after combined deep sclerectomy with trabeculotomy. |
Countries
Egypt
Outcome results
None listed