2018, Number 4
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Rev Mex Oftalmol 2018; 92 (4)
Clinical characteristics and etiology of low vision and blindness in an adult population with visual impairment
Arias-Uribe J, Llano-Naranjo Y, Astudillo-Valverde E, Suárez-Escudero JC
Language: Spanish
References: 47
Page: 201-208
PDF size: 198.00 Kb.
ABSTRACT
Introduction: low vision and blindness make up the visual disability, one of the types of disability with the highest worldwide
prevalence, and apparently the most frequent at a Colombian level. The conventional etiology of permanent and transitory
deficiencies responsible for visual impairment such as glaucoma, cataract, infectious blindness and uncorrected
ametropias, may be changing due to the presence of other entities and results of public health programs, and it is necessary
to extend the etiological spectrum to both Ophthalmological causes as not ophthalmological.
Objectives: to identify the etiology and the most relevant clinical characteristics in an adult population with visual impairment.
Materials and methods: descriptive
cross-sectional study in 96 adults with confirmed visual impairment.
Results: 61% with low vision; in 55% the etiology
of the visual deficiency was in the posterior segment, 21% in the anterior segment and 10% in the pathway and/or visual
cortex. The most frequent individual pathologies: pathological myopia, non-glaucomatous optic neuropathy, glaucoma and
macular degeneration related to age.
Conclusions: in this study, pathologies with posterior segment involvement occupied
the most frequent etiologies related to visual disability, and the neuro ophthalmological and ocular trauma entities were
identified as a potential source of visual deficiencies. It is necessary to continue carrying out studies that clarify whether the
spectrum of conventional etiologies causing visual disability has changed, with the aim of redirecting programs of promotion,
prevention, diagnosis, treatment and rehabilitation in low vision and blindness.
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