Mary A. Johnson

Disciplines

Dr. Johnson is an Associate Professor in the Department of Ophthalmology and Visual Sciences in the University of Maryland School of Medicine, where she directs the Visual Electrodiagnostics Service. Her research focuses on how disease affects visual function in human patients and in animal models, and from these data she develops insights into the mechanisms of damage. Her current work implicates horizontal cell dysfunction in the etiology of photophobia in traumatic brain injury, and she developed an ERG protocol to measure this change.

Recent Publications

2025

Ocular structure and function in a monkey with spontaneous diabetes mellitus.
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2021

Anti-NOGO Antibody Neuroprotection in a Rat Model of NAION. Transl Vis Sci Technol.
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Persistent dark cones in oligocone trichromacy revealed by multimodal adaptive optics ophthalmoscopy.
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2019

ISCEV extended protocol for the stimulus-response series for the dark-adapted full-field ERG b-wave.
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2016

Peripapillary Retinal Nerve Fiber Layer Swelling Predicts Peripapillary Atrophy in a Primate Model of Nonarteritic Anterior Ischemic Optic Neuropathy.
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2005

Ocular structure and function in a monkey with spontaneous diabetes mellitus.
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2004

Retinopathy in monkeys with spontaneous type 2 diabetes.
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1999

Visual dysfunction in patients receiving vigabatrin for intractable seizures: Clinical and electrophysiologic findings.
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1996

Rod photoreceptor transduction is affected in central retinal vein occlusion associated with iris neovascularization.
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1993

Predicting outcome in central retinal vein occlusion using the flicker electroretinogram.
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The care and fitting of Naka-Rushton functions to electroretinographic intensity-response data.
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1987

On the definition of age-related norms for visual function testing.
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1982

The photomyoclonic reflex: An artifact in the clinical electroretinogram.
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