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Acta clinica Croatica, Vol. 62. No. 1, 2023.

Original scientific paper

https://doi.org/10.20471/acc.2023.62.01.24

Subclinical Optic Neuritis

Tomislav Vidović orcid id orcid.org/0000-0003-1083-9195 ; Department of Ophthalmology, Zagreb University Hospital Center, School of Medicine, University of Zagreb, Zagreb, Croatia
Branimir Cerovski ; Department of Ophthalmology, Zagreb University Hospital Center, School of Medicine, University of Zagreb, Zagreb, Croatia
Smiljka Popović-Suić ; Department of Ophthalmology, Zagreb University Hospital Center, School of Medicine, University of Zagreb, Zagreb, Croatia
Igor Petriček ; Department of Ophthalmology, Zagreb University Hospital Center, School of Medicine, University of Zagreb, Zagreb, Croatia
Tamara Mišljenović Vučerić ; Department of Ophthalmology, Zagreb University Hospital Center, School of Medicine, University of Zagreb, Zagreb, Croatia

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Abstract

Acute optic neuritis is often associated with multiple sclerosis. It is considered to be
the most common ocular symptom of multiple sclerosis. In addition to acute optic neuritis, in patients
with multiple sclerosis, subclinical optic neuritis is also described. It is characterized by slow progression
and bilateral involvement, thus being unnoticed by the patient. The purpose of the present study was to
assess vision impairment in multiple sclerosis patients without a history of acute optic neuritis, using a
number of functional tests including visual field testing by Octopus 101 perimetry N1 program, contrast
sensitivity testing by Pelli Robson chart, and color vision by Ishihara pseudoisochromatic plates.
The study included 35 multiple sclerosis patients aged 18-50 years, without subjective signs of vision
impairment and visual acuity 1.0 according to Snellen. Visual field defects were found in 28 patients.
The most common defects of visual fields were retinal sensitivity depression in peripheral zone and nerve
fiber bundle defect. Reduced contrast sensitivity was found in 30 (86%) patients. Study results indicated
multiple sclerosis patients free from signs of optic neuritis to suffer vision function impairment, as
demonstrated by Octopus perimetry and contrast sensitivity testing with Pelli Robson charts.

Keywords

Optic neuritis; Multiple sclerosis; Vision tests

Hrčak ID:

307298

URI

https://hrcak.srce.hr/307298

Publication date:

1.4.2023.

Article data in other languages: croatian

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