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Anales de la Sociedad Mexicana de Oftalmología y Archivos de la Asociación Para Evitar la Ceguera en México

2007, Number 6

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Rev Mex Oftalmol 2007; 81 (6)

Escala pronóstica para agudeza visual en hipema traumático

González-Vázquez IX, Villavicencio-Torres A, Campos-Campos LE

Language: Spanish
References: 15
Page: 301-306
PDF size: 46.74 Kb.


ABSTRACT

Purpose: To Create a prognostic scale for visual acuity after traumatic hyphema.
Methods: Descriptive, analytical, longitudinal study. Two phases: I. creation and II. validation. Patients with traumatic hyphema were included. Study variables: Initial visual acuity, hyphema grade, evolution, time of absorption, anterior and posterior segment lesions, ocular hypertension, corneal staining and treatment.
Results: 43 patients per phase. Considering the relative risk for final visual acuity impairment a prognostic score was assigned to each variable. A score of 12 or more was considered the threshold for a final result of ‹20/60. Phase I had a sensibility of 80% and specificity of 89%. Phase II 65% and 95% respectively. If a score of 11 was considered as threshold sensibility increase to 85% and specificity 91%.
Conclusion: It is important to have an instrument to predict visual acuity considering ocular injuries at the time of diagnosis. The proposed scale with threshold of 11 points provides a sensibility and specificity higher than 80%.


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