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Inapparent Visual Field Defects in Multiple Sclerosis Patients
Tomislav Vidović
Branimir Cerovski
Dubravka Horvat Vidović
Jasenka Cerovski
Katia Novak-Lauš
Sažetak
To assess inapparent visual field defects in patients with multiple sclerosis free from optic neuritis. During 5 years
period 120 patients with multiple sclerosis were examined at the University Department of Ophthalmology, Zagreb
University Hospital Center. They were divided into three groups with 40 patients each: patients with acute unilateral
optic neuritis, referred to ophthalmologist and treated with pulsed steroid therapy; patients with subjective feeling of
blurred vision, normal visual acuity and no signs of acute optic neuritis; and patients free from subjective signs of visual
impairment. Study patients underwent standard ophthalmologic examination and visual field testing in photopia
by use of quantitative kinetic Goldmann perimetry. The initial and control examination by visual field testing
were performed at least 6 months apart. Study results showed 65% of multiple sclerosis patients to have visual field defects
without subjective signs of impaired vision. The most common defects were mild to moderate visual field narrowing
with blind spot enlargement and depression from above. The following results were recorded: acute optic neuritis
group: normal in 13/40 (32.5%) for the affected eyes and 27/40 (67.5%) for fellow eyes; mild visual field narrowing in
4/40 (10%) for the affected eyes and 10/40 (25%) for fellow eyes; moderate visual field narrowing with blind spot enlargement
in 14/40 (35%) for the affected eyes and 1/40 (2.5%) for fellow eyes; and paracentral and arcuate scotomata
in 9/40 (22.5%) for the affected eyes and 2/40 (5%) for fellow eyes; subjective symptom group: normal in 8/40 (20%) for
the affected eyes and 11/40 (27.5%) for fellow eyes; mild visual field narrowing in 11/40 (27.5%) for the affected eyes
and 16/40 (40%) for fellow eyes; moderate visual field narrowing with blind spot enlargement in 18/40 (45%) for the
affected eyes and 10/40 (25%); and paracentral and arcuate scotomata in 3/40 (7.5%) for both affected and fellow eyes;
and subjective symptom-free group: normal in 24/80 (30%), mild visual field narrowing in 22/80 (27.5%) moderate visual
field narrowing with blind spot enlargement in 24/80 (30%); and paracentral and arcuate scotomata in 10/80
(12.5%). The presence of subclinical form of optic nerve involvement could be demonstrated in a very early stage of multiple
sclerosis by the introduction of visual field testing in the standard examination protocol.
Ključne riječi
visual field defect; multiple sclerosis
Hrčak ID:
27913
URI
Datum izdavanja:
20.6.2005.
Posjeta: 1.835 *