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[Corneal endothelial damage in congenital and juvenile glaucoma]
M Wenzel1, U Krippendorff, W Hunold
1Augenklinik der Medizinischen Fakultät, Rheinisch Westfälischen Technischen Hochschule Aachen.
Insights
Infantile glaucoma can cause corneal changes. Endothelial cell density is reduced in children with corneal edema and Descemet
Area of Science:
- Ophthalmology
- Pediatric Glaucoma Research
- Corneal Endothelium Studies
Context:
- Infantile glaucoma frequently leads to corneal alterations due to the pliable nature of ocular tissues in newborns.
- Increased intraocular pressure (IOP) in infants can cause distension of the cornea, affecting Descemet's membrane and stromal integrity.
- Assessing endothelial cell density is crucial for understanding corneal health in pediatric glaucoma patients.
Purpose:
- To investigate the impact of infantile glaucoma on corneal endothelial cell density.
- To determine the relationship between corneal diameter, IOP, and endothelial cell loss in juvenile glaucoma.
- To evaluate the correlation between endothelial cell counts and visual outcomes or IOP regulation post-treatment.
Summary:
- A study of 20 patients (ages 4-29) with congenital or secondary juvenile glaucoma found a mean endothelial cell density of 2780/mm2.
- While increased corneal diameter was a common symptom of buphthalmos, it did not correlate with postoperative endothelial cell density, visual outcome, or IOP.
- Children experiencing corneal edema and Descemet's membrane ruptures showed significantly reduced endothelial cells, poorer visual outcomes, and challenges in IOP management. Some secondary glaucoma cases also presented with lower cell densities.
Impact:
- Highlights the detrimental effect of corneal complications in infantile glaucoma on endothelial cell health and visual prognosis.
- Underscores the importance of monitoring corneal integrity and endothelial cell counts in managing pediatric glaucoma.
- Provides insights into the long-term consequences of elevated IOP on corneal structure and function in young patients.
Abstract:
Corneal changes are typical for infantile glaucoma. In newborns, Descemet's membrane and the stroma are still soft, and distend when intraocular pressure rises. Cell counts were performed under the reflecting microscope to determine whether the endothelium is affected when corneal diameter increases and changes occur in Descemet's membrane. The mean endothelial cell density of 20 patients with congenital or secondary juvenile glaucoma, aged between 4 and 29 years, was found to be 2780/mm2. Even though increased corneal diameter was the most common primary symptom of buphthalmos, there were no relationships between corneal diameter on the one hand and postoperative endothelial cell density, visual outcome, or postoperative pressure on the other. In children who had had corneal edema followed by ruptures of Descemet's membrane the number of endothelial cells was significantly reduced, visual outcome was worse, and there were more problems with regulation of intraocular pressure. Lower-than-average endothelial cell densities were also found in some patients with secondary glaucoma.