Abstract | PURPOSE: To design subjective aniseikonia measuring criteria in order to quantify its value and to use it to the clinical practice. MATERIAL AND METHODS: In order to carry out the aniseikonia measurements, a sinoptophore (Clement Clark) was used and two tests (one per eye of each patient) were performed. A viewfinder capable of measuring the difference in size between subjective images in both eyes was used and a percentage scale of ratio between 0 and 30%, with an accuracy of 1% was developed. An observational descriptive study was performed on 358 patients, and a complete ophthalmological examination also performed. The patients were divided in 3 groups: emmetropic patients, ametropic patients with non-progressive spectacles, and ametropic patients with hydrophilic contact lenses. RESULTS: Of the 358 patients studied, 22.7% were men and 67.3% women. The average age was 38.3 (SD 17.3) years. 40.2% of the patients were emmetropic and 59.8% had some type of ametropia. When analyzing the refractive defect measured as the spherical equivalent we found a higher prevalence of myopia than hyperopia. The level of aniseikonia in the group of emmetropic patients was 1.6% (SD 3.11), in patients with glasses was 1.3% (SD 2.81), and in patients with contact lenses was 1.1% (SD 2.96). Comparing the results of aniseikonia in anisometropic and emmetropic patients, no statistically significant differences were found. CONCLUSION: A simple method to quantify subjective aniseikonia, useful in clinical diagnosis has been designed.
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Authors | A Galindo-Ferreiro, J Galindo-Alonso, H Sánchez-Tocino |
Journal | Archivos de la Sociedad Espanola de Oftalmologia
(Arch Soc Esp Oftalmol)
Vol. 82
Issue 2
Pg. 81-7
(Feb 2007)
ISSN: 0365-6691 [Print] Spain |
Vernacular Title | Un nuevo método de diagnóstico y cuantificación de la aniseiconia subjetiva. |
PMID | 17323247
(Publication Type: English Abstract, Journal Article)
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Topics |
- Adult
- Aniseikonia
(diagnosis)
- Diagnostic Techniques, Ophthalmological
- Female
- Humans
- Male
- Middle Aged
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