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Published on: January 26, 2018
Early Predictors of Long-term Outcomes in Childhood Glaucoma
Ta C Chang1, Kara M Cavuoto, Alana L Grajewski
1Bascom Palmer Eye Institute, Miami, FL.
Insights
Early signs like nystagmus and failed angle surgery in childhood glaucoma predict poor visual outcomes. Failed angle surgery and media opacity also indicate poor intraocular pressure (IOP) control, informing a new staging system.
Area of Science:
- Ophthalmology
- Pediatric Ophthalmology
- Glaucoma Research
Background:
- Childhood glaucoma requires effective management strategies.
- Predicting long-term outcomes is crucial for developing a data-based staging system.
- Early-onset glaucoma presents unique challenges in visual acuity and intraocular pressure (IOP) control.
Purpose of the Study:
- To identify early clinical factors associated with poor long-term visual acuity and IOP control in early-onset glaucoma.
- To lay the groundwork for constructing a severity staging system for childhood glaucoma.
Main Methods:
- Retrospective case series analysis of pediatric glaucoma patients.
- Statistical modeling was used to analyze data from initial visits through final follow-up.
- Early clinical characteristics were associated with final IOP control and visual acuity outcomes.
Main Results:
- Nystagmus, anterior segment dysgenesis (ASD), and failed angle surgery by the third visit were associated with poorer final visual acuity.
- Failed amblyopia therapy, failed angle surgery, nystagmus, media opacity (MO), or ASD at 3 years also predicted worse visual outcomes.
- Failed angle surgery and MO were linked to uncontrolled IOP at the final visit.
Conclusions:
- Early identification of nystagmus, ASD, or failed angle surgery can predict poor visual outcomes in infantile-onset glaucoma.
- Failed angle surgery and MO are predictors of poor IOP control.
- These findings are initial steps toward developing a childhood glaucoma severity staging system.
Purpose:
A data-based staging system for childhood glaucoma is likely to improve the prediction of visual acuity and intraocular pressure (IOP) control outcomes. We investigated early clinical factors associated with poor long-term visual, and IOP control outcomes in early-onset glaucoma as the initial steps to constructing a severity staging system.
Design:
Statistical modeling of retrospective case series data.
Participants:
Glaucoma patients younger than 3 years of age who presented to Bascom Palmer Eye Institute between 1990 and 2010 with at least 5 years of follow up.
Methods:
Statistical modeling of retrospective case series data from first, second, third, 3-year, 5-year, and final visits.
Main Outcome Measures:
Association of early clinical characteristics to final IOP-control outcomes and visual acuities.
Results:
A total of 26 eyes of 15 children were included. Nine of 15 (60%) of patients were male. Mean age at initial presentation: 9.98±10.55 months. Mean duration between initial and final visits: 11.13±3.55 years. By the third visit (mean 6.69 mo after presentation), presence of nystagmus, anterior segment dysgenesis (ASD) or having failed angle surgery increased the final LogMAR visual acuity by 0.76 (P=0.0516), 0.64 (P=0.0618), and 0.58 (P=0.0159), respectively. At year 3, failed amblyopia therapy, failed angle surgery, nystagmus, media opacity (MO), or ASD increased the final LogMAR by 1.30, 1.34, 1.21, 0.85, 0.64, respectively (all P<0.02). Failed angle surgery or MO increased the chance of uncontrolled IOP at the final visit (proportional odds ratio of 6.77 and 12.88, respectively).
Conclusions:
In this pilot study of a modest size cohort, the presence of nystagmus, ASD or failed angle surgery early in the course of infantile-onset glaucoma management predicted poor final visual outcome, whereas failed angle surgery and presence of MO predicted poor final IOP control. These predictors of poor outcomes will serve as the initial steps in constructing a severity staging system.
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