Interpupillary index: A new parameter for hypo-hypertelorism
Küçük Resim Yok
Tarih
2001
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Churchill Livingstone
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Aim: To establish a new clinical index to evaluate the presence of hypo-hypertelorism with greater accuracy. Material and Methods: After screening a wide range of population, 310 elementary school children (185 boys, 125 girls) aged 7-15 years were included in this study. For this cross-sectional study, a millimetre ruler was used. The anatomical interpupillary distance was measured by a modified Viktorin's method. In addition, inner and outer intercanthal distances were obtained. The data were analyzed by Student's t-test for two independent samples using SPSS for Windows. There were children with clinical hypertelorism (n = 92, group 1), children with large fronto-occipital circumference (FOC) (n = 101, group 2), and age- and sex-matched normal controls (n = 117, group 3). Due to variations in FOC among healthy subjects, we introduced a new practical concept for evaluation of interpupillary distance, namely the interpupillary index, the simple product obtained by dividing the interpupillary distance by the FOC, multiplied by 100. Results: The overall idiopathic benign macrocephalic children (group 2) had significantly (p < 0.001) larger interpupillary distances (6.13 ± 0.36 cm) and FOCs (56.99 ± 1.46 cm) than those of normal controls (5.70 ± 0.26 cm and 52.82 ± 1.22 cm, respectively). But, the difference between the combined product of interpupillary distance and FOC, the interpupillary index, was not significant (10.76 ± 0.50 and 10.79 ± 0.35, respectively) (p > 0.05). On the other hand, the children with hypertelorism had significantly (p < 0.001) larger interpupillary distances (6.47 ± 0.29 cm) and FOCs (54.90 ± 2.18 cm) when compared with the controls. In addition, the interpupillary index was significantly (p < 0.001) higher (11.80 ± 0.45) than both macrocephalic children (10.76 ± 0.50) and controls (10.79 ± 0.35). Intercanthal distances and intercanthal index of hyperteloric children were also significantly (p < 0.001) larger than both macrocephalic children and controls. Conclusion: This new index offers a new concept for more accurate evaluation of the presence of ocular hypo-hypertelorism. © 2001 European Association for Cranio-Maxillofacial Surgery.
Açıklama
Anahtar Kelimeler
adolescent, anatomy, article, controlled study, data analysis, diagnostic accuracy, diagnostic procedure, female, head circumference, human, hypertelorism, hypotelorism, interpupillary index, macrocephaly, major clinical study, male, mass screening, measurement, methodology, parameter, school child, technique
Kaynak
Journal of Cranio-Maxillofacial Surgery
WoS Q Değeri
Scopus Q Değeri
Q1
Cilt
29
Sayı
4
