| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 2.15 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
Introdução: As anomalias congénitas da visão das cores têm uma prevalência de 8,55% na população. Assim sendo o objetivo principal do estudo é verificar a prevalência deste tipo de anomalias no concelho da Covilhã.
Métodos: Uma amostra de 329 observadores (153 rapazes e 176 raparigas), com uma média de idade de 15,33 ± 2,27, foi submetida às placas pseudoisocromáticas de Ishihara. Quando se verificava uma suspeita de anomalia o observador fazia o despiste no anomaloscópio Oculus Heidelberg Multi-Color através do teste manual, segundo a equação de Rayleigh. Os encarregados de educação dos observadores incluídos na amostra observada receberam um inquérito antes dos observadores serem examinados.
Resultados: Dos 261 inquéritos respondidos, 32,18% dos Encarregados de Educação revelaram que não tinham conhecimento da existência de anomalias congénitas da visão das cores. As placas pseudoisocromáticas de Ishihara revelaram uma suspeita de sete anómalos do género masculino. Através do anomaloscópio essa suspeita foi confirmada e qualificaram-se da seguinte forma: quatro eram deuteranómalos (2,61%), dois protanópes (1,31%) e um protanómalo (0,66%). Comparando o diagnóstico com os inquéritos verificou-se que 57% dos Encarregados de Educação desconhece a existência da anomalia da visão das cores dos seus filhos.
Conclusão: Para a população caucasiana verifica-se que a prevalência das anomalias congénitas da visão das cores no concelho da Covilhã é inferior à descrita na bibliografia.
Introduction: Congenital color vision deficiencies have a prevalence of 8.55% in the population. Therefore the main objective of the study is to determine the prevalence of such abnormalities in the municipality of Covilhã. Methods: A sample of 329 observers (153 boys and 176 girls) from an average age of 15.33 ± 2.27, was subjected to Ishihara pseudoisochromatic plates. When checking a suspicious anomaly the observer was screening in anomaloscope Oculus Heidelberg Multi-Color through manual testing, according to the equation of Rayleigh. The caregivers of the observers observed in the sample received a survey before the observers’ examination. Results: From the 261 answered the surveys, 32.18% of caregivers revealed that they were not aware of the existence of congenital color vision deficiencies. The Ishihara pseudoisochromatic plates revealed a suspicion of seven abnormal males. By anomaloscope this suspicion was confirmed and qualified that four were deuteranomalous (2.61%), two protanope (1.31 %) and one protanomalous (0.66 %). From the diagnosed observers only two knew they were abnormal. Comparing the diagnosis with the surveys was found that 57% of the caregivers unknow the existence of color vision deficiency of their children. Conclusion: Considering the Caucasian population it is found that the prevalence of congenital color vision deficiencies of the municipality of Covilhã is lower than that reported in the literature.
Introduction: Congenital color vision deficiencies have a prevalence of 8.55% in the population. Therefore the main objective of the study is to determine the prevalence of such abnormalities in the municipality of Covilhã. Methods: A sample of 329 observers (153 boys and 176 girls) from an average age of 15.33 ± 2.27, was subjected to Ishihara pseudoisochromatic plates. When checking a suspicious anomaly the observer was screening in anomaloscope Oculus Heidelberg Multi-Color through manual testing, according to the equation of Rayleigh. The caregivers of the observers observed in the sample received a survey before the observers’ examination. Results: From the 261 answered the surveys, 32.18% of caregivers revealed that they were not aware of the existence of congenital color vision deficiencies. The Ishihara pseudoisochromatic plates revealed a suspicion of seven abnormal males. By anomaloscope this suspicion was confirmed and qualified that four were deuteranomalous (2.61%), two protanope (1.31 %) and one protanomalous (0.66 %). From the diagnosed observers only two knew they were abnormal. Comparing the diagnosis with the surveys was found that 57% of the caregivers unknow the existence of color vision deficiency of their children. Conclusion: Considering the Caucasian population it is found that the prevalence of congenital color vision deficiencies of the municipality of Covilhã is lower than that reported in the literature.
Description
Keywords
Anomalias Congénitas da Visão das Cores Anomaloscópio Cones Hereditariedade Placas Pseudoisocromáticas de Ishihara Retina