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Morphology of the optic nerve head in glaucomatous eyes with visual field defects in superior or inferior hemifield

Abstract

Purpose

To evaluate the morphology of optic nerve head (ONH) and border tissue (BT) of Elschnig in glaucomatous eyes with visual field defects in superior or inferior hemifield.

Methods

In a case-control study, we included 25 patients with superior arcuate scotoma, 25 patients with inferior arcuate scotoma, and 25 healthy controls. They received visual field testing, measurement of peripapillary retinal nerve fiber layer (RNFL) thickness, and ONH examination in a radial pattern with spectral-domain optical coherence tomography. In each ONH scan, the length of Bruch membrane opening (BMO) and BT were measured. Pattern deviation of 6 areas of the visual field and RNFL thickness in corresponding sectors was calculated.

Results

Mean BMO length did not differ between groups. Compared with controls, glaucomatous eyes with superior scotoma had a greater BT length in inferior sectors (p<0.001), and eyes with inferior scotoma had a greater BT length in superotemporal sectors (p = 0.006). In both groups, a significant correlation was found between BT length and pattern deviation and RNFL thickness of corresponding sectors of superior and inferior hemifields.

Conclusions

In patients with arcuate scotoma in one hemifield, the length of the BT correlates with glaucomatous anatomical and functional damage.

Post author correction

Article Type: ORIGINAL RESEARCH ARTICLE

Article Subject: Glaucoma

DOI:10.5301/ejo.5001033

Authors

Antonio Longo, Teresio Avitabile, Maurizio G. Uva, Vincenza Bonfiglio, Andrea Russo, Mario D. Toro, Salvatore Faro, Michele Reibaldi

Article History

Disclosures

Financial support: No financial support was received for this submission.
Conflict of interest: None of the authors has conflict of interest with this submission.

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Authors

Affiliations

  • Eye Clinic, University of Catania, Catania - Italy

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