Related Experiment Video
Updated: Aug 15, 2026

Glaucoma-inducing Procedure in an In Vivo Rat Model and Whole-mount Retina Preparation
Published on: March 12, 2016
[Early Manifest Glaucoma Trial update 2004]
1Universitäts-Augenklinik, Rostock.
Abstract:
Elevated intraocular pressure (IOP) represents one of the most important risk factors for developing glaucomatous optic neuropathy. The "Early Manifest Glaucoma Trial" (EMGT) was initiated to answer the question of how immediate IOD-lowering therapy affects the progression of early manifest glaucoma and which clinically relevant factors are important. The study compares 129 patients undergoing treatment with 126 patients receiving no IOP-lowering therapy. IOP remained virtually constant in the untreated group, while a reduction of 25% was achieved in the treatment group. The results of the EMGT indicate that glaucoma progression is influenced by higher initial IOP, pseudoexfoliation or bilateral glaucoma, poorer MD value, higher age, and marginal papillary hemorrhage. No clear conclusions can be drawn regarding the significance of cardiovascular risk factors.
Insights
Lowering intraocular pressure (IOP) significantly slows glaucoma progression. Key factors influencing disease advancement include higher initial IOP, age, and specific clinical signs, highlighting the importance of early intervention for glaucomatous optic neuropathy.
Area of Science:
- Ophthalmology
- Clinical Research
Background:
- Elevated intraocular pressure (IOP) is a primary risk factor for glaucomatous optic neuropathy.
- Early intervention is crucial for managing glaucoma progression.
Purpose of the Study:
- To evaluate the effect of immediate IOP-lowering therapy on early manifest glaucoma progression.
- To identify clinically relevant factors influencing glaucoma progression.
Main Methods:
- A comparative study involving 129 patients receiving IOP-lowering therapy and 126 untreated patients.
- Monitoring IOP levels and glaucoma progression over the study period.
Main Results:
- The treatment group achieved a 25% reduction in IOP, while the untreated group showed minimal change.
- Glaucoma progression was associated with higher initial IOP, pseudoexfoliation, bilateral glaucoma, poorer mean deviation (MD) values, increased age, and papillary hemorrhage.
Conclusions:
- Immediate IOP-lowering therapy effectively influences the progression of early manifest glaucoma.
- Several clinical factors, including initial IOP and patient age, are significant predictors of glaucoma progression.
Related Concept Videos
Glaucoma: Overview
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...
Angle Closure Glaucoma: Treatment

