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Ocular hypertension in patients with central/hemicentral retinal vein occlusions: cumulative prevalence and
Dan Călugăru1, Mihai Călugăru1, Ştefan Ţălu2
1Department of Ophthalmology, University of Medicine, Cluj-Napoca 400467, Romania.
Insights
Ocular hypertension (OH) is prevalent in central/hemicentral retinal vein occlusion (C/HCRVO) patients. Prompt treatment of OH in C/HCRVO patients effectively prevents conversion to primary open-angle glaucoma (POAG).
Area of Science:
- Ophthalmology
- Vascular Medicine
Background:
- Central/hemicentral retinal vein occlusions (C/HCRVOs) can be associated with ocular hypertension (OH).
- Understanding the prevalence and management of OH in C/HCRVO patients is crucial for preventing glaucoma progression.
Purpose of the Study:
- To prospectively evaluate the cumulative prevalence of ocular hypertension (OH) in patients with unilateral acute central/hemicentral retinal vein occlusions (C/HCRVOs).
- To assess the management and 3-year outcomes of OH in this patient cohort, focusing on conversion to primary open-angle glaucoma (POAG).
Main Methods:
- A prospective study of 57 patients with unilateral acute C/HCRVOs.
- Comprehensive ophthalmological examinations were performed.
- OH was treated with medication aiming for intraocular pressure (IOP) <21 mm Hg and >22% reduction; patients with a >5% risk of POAG conversion were treated.
Main Results:
- The cumulative prevalence of OH in C/HCRVO patients was 29.4%.
- The mean 5-year risk score for OH conversion to POAG was 11.7%±5.4%.
- Treatment significantly reduced IOP from 25.67±2.16 mm Hg to 18.73±2.96 mm Hg, with no conversions to POAG observed.
Conclusions:
- Increased OH prevalence in C/HCRVO suggests OH is a risk factor for venous occlusion.
- Patients with OH and C/HCRVO are at high risk for POAG.
- OH medication effectively prevented POAG conversion over 3 years.
Aim:
To prospectively evaluate the cumulative prevalence and the management of ocular hypertension (OH) in patients with unilateral acute central/hemicentral retinal vein occlusions (C/HCRVOs) over the course of 3y.
Methods:
The study included 57 patients with unilateral acute C/HCRVOs. All patients underwent a comprehensive ophthalmological examination of both eyes. OH associated with C/HCRVO in patients showing a score >5% for the risk of conversion to primary open angle glaucoma (POAG) was treated with OH medication. The treatment aimed for a decrease in intraocular pressure (IOP) to <21 mm Hg with a >22% reduction from the initial values. The cumulative prevalence of OH and the effectiveness of treatment assessed by the cumulative prevalence of conversion from OH to POAG, were estimated.
Results:
Fifteen patients had OH associated with C/HCRVOs, the cumulative prevalence of OH was 29.4% (95% confidence interval, 16.9-41.9). The mean value of the risk score of OH conversion to POAG for the 5 subsequent years was 11.7%±5.4%. The IOP significantly decreased from 25.67±2.16 mm Hg to 18.73±2.96 mm Hg. None of the OH patients converted to POAG during the follow-up period.
Conclusion:
The increased cumulative prevalence of OH in C/HCRVO patients indicates that OH is a risk factor for the appearance of venous occlusion. Patients with OH associated with C/HCRVO must be considered to be at high risk for conversion to POAG. Treatment with OH medications prevented conversion to POAG during the 3-year follow-up.
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