Published in:
01-12-2024 | Idiopathic Intracranial Hypertension | Original Paper
Assessment of the relationship between structural and functional tests in patients with idiopathic intracranial hypertension
Authors:
Kaveh Abri Aghdam, Mostafa Soltan Sanjari, Samira Chaibakhsh, Zahra Fathi, Pegah Kazemi, Ali Aghajani
Published in:
International Ophthalmology
|
Issue 1/2024
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Abstract
Purpose
To assess the relationship between structural and functional tests in mild and moderate idiopathic intracranial hypertension (IIH).
Methods
Patients with mild and moderate IIH and a control group were enrolled. Best-corrected visual acuity (BCVA), macular ganglion cell layer (MGCL) thickness, peripapillary retinal nerve fiber layer (pp RNFL) thickness, perimetric mean deviation (MD), and photopic negative responses (PhNR) of the electroretinogram were recorded. The associations between structural (pp RNFL and MGCL thickness) and functional (PhNR amplitude, MD and BCVA) parameters were assessed.
Results
154 eyes from 78 subjects (74 eyes from IIH patients and 80 eyes from healthy subjects) were included in this comparative observational study. The MGCL thickness, VA, pp RNFL, and PhNR base-to-trough (BT) amplitude were significantly worse in moderate IIH. The BCVA and MD were associated with MGCL thickness only in moderate IIH. The relationship between MD and MGCL thickness started when MD fell below −5.7 dB.
Conclusions
The association between functional and structural parameters varies between mild and moderate IIH. The MD and MGCL thickness outperformed in assessing disease severity in mild and moderate IIH, respectively. The association between MD and MGCL thickness could be considered in IIH severity categorization.