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Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
Published on: May 25, 2020
Corneal thickness and visual field damage in glaucoma patients
M Papadia1, C Sofianos, M Iester
1Centro di Ricerca Clinica e Laboratorio per il Glaucoma e la Cornea, Clinica Oculistica, DiNOG, University of Genova, Azienda Ospedaliera Universitaria San Martino, Genova, Italy.
Eye (London, England)
|April 29, 2006
Summary
Thinner central corneal thickness (CCT) is linked to worse visual field damage in primary open angle glaucoma (POAG). This may lead to delayed diagnosis or underestimation of disease progression due to inaccurate intraocular pressure (IOP) readings.
Area of Science:
- Ophthalmology
- Glaucoma Research
- Corneal Biomechanics
Background:
- Primary open-angle glaucoma (POAG) is a leading cause of irreversible blindness.
- Accurate assessment of intraocular pressure (IOP) is crucial for managing POAG.
- Central corneal thickness (CCT) can influence IOP measurements.
Purpose of the Study:
- To investigate the correlation between central corneal thickness (CCT) and visual field damage in patients with primary open-angle glaucoma (POAG).
Main Methods:
- 99 eyes with POAG were analyzed.
- Patients underwent applanation tonometry, Humphrey perimetry, and ultrasonic pachymetry for CCT measurement.
- Participants were grouped based on CCT (<535 microm vs. >=535 microm).
Main Results:
- A significant difference in Mean Deviation (MD) and Pattern Standard Deviation (PSD) was observed between thinner and thicker cornea groups.
- Linear regression revealed a significant correlation between CCT and PSD (P<0.001).
- Patients with thinner corneas exhibited worse MD and PSD values.
Conclusions:
- Thinner corneas in POAG patients are associated with more severe visual field defects.
- Reduced CCT can lead to underestimation of true IOP, potentially delaying POAG diagnosis or misjudging disease progression.
- Ocular clinicians should consider CCT in the evaluation and management of POAG patients.
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