Visual impairment screening program among pre-school children in Hamadan

| December 2012 | 1196 l E t t E r t o E d it o r We found the reliability of optometrists’ diagnosis compared with ophthalmologist is good so that they can detect most of the visual impairment accurately but reliability of public health nurses’ diagnosis is intermediate to fair. Although the sensitivity of their diagnosis is relatively good, but the specificity of their diagnosis is poor and leads to considerable false positive results. Therefore, periodic re‐training workshop for public health nurses may improve their skill and lead to reduction in false positive and false negative results.