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Medicina is published by MDPI from Volume 54 Issue 1 (2018). Articles in this Issue were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence. Articles are hosted by MDPI on mdpi.com as a courtesy and upon agreement with Lithuanian Medical Association, Lithuanian University of Health Sciences, and Vilnius University.
Open AccessArticle

Changes of vision and refraction in patients with thyroid pathology

1
Department of Eye Diseases, Kaunas University of Medicine
2
Kaunas University of Medicine, Lithuania
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Author to whom correspondence should be addressed.
Medicina 2009, 45(5), 378; https://doi.org/10.3390/medicina45050048
Received: 29 January 2008 / Accepted: 4 May 2009 / Published: 9 May 2009
Objective. The aim of the study was to assess the relationship between thyroid pathology and visual acuity, including refraction disorders.
Material and methods
. The data of visual acuity, refraction, and exophthalmos were analyzed, which were obtained from 105 patients with thyroid pathology. The data were compared with the findings of 23 healthy persons of similar age (control group).
Results
. In case of thyroid pathology, visual acuity (right eye 0.71±0.035, left eye 0.73±0.045) was worse than in the control group (right eye 0.89±0.06, P<0.05; left eye 0.92±0.07, P<0.05). Myopia dominated in patients with thyroid pathology (refraction: right eye M 1.1±0.61 D, left eye M 1.0±0.64 D). In patients with exophthalmos of ≥17 mm, visual acuity was significantly worse (right eye 0.68±0.04, left eye 0.68±0.03) than in persons of the control group (right eye 0.89±0.06, P<0.05; left eye 0.92±0.07, P<0.05), and myopic refraction was found more frequently (right eye M 1.3±0.48 D, left eye M 1.3±0.56 D). Visual acuity was significantly better in patients when exophthalmos was <17 mm (right eye 0.80±0.05, P<0.05; left eye 0.80±0.05, P<0.05) than in cases when exophthalmos was ≥17 mm.
Conclusions.
Thyroid pathology and exophthalmos have an influence on visual acuity and refraction. In case of thyroid pathology, visual acuity appears to be worse than in the control group, and myopic refraction is more frequent. Visual acuity was found to be worse in patients with exophthalmos being ≥17 mm than in the control group, and myopic refraction was found to be more frequent.
Keywords: thyrotoxicosis; thyroid pathology; exophthalmos; myopia; visual acuity thyrotoxicosis; thyroid pathology; exophthalmos; myopia; visual acuity
MDPI and ACS Style

Jankauskienė, J.; Jakštaitė, V.; Smalinskas, V. Changes of vision and refraction in patients with thyroid pathology. Medicina 2009, 45, 378.

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