Visual impairment in Nordic children

Abstract A Nordic study group of ophthalmologists, NORDSYN, has compiled registers in Denmark, Finland, Iceland and Norway of 2527 visually impaired children aged 0–17 years. This paper is concerned with the sex‐distribution in the registers and has documented a statistically significant excess of m...

Full description

Bibliographic Details
Published in:Acta Ophthalmologica
Main Authors: Riise, R., Flage, T., Hansen, E., Rosenberg, T., Rudanko, S.‐L., Viggosson, G.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1992
Subjects:
Ophthalmology
General Medicine
Norway
Iceland
Online Access:http://dx.doi.org/10.1111/j.1755-3768.1992.tb02140.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1755-3768.1992.tb02140.x
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1755-3768.1992.tb02140.x
Description
Summary:Abstract A Nordic study group of ophthalmologists, NORDSYN, has compiled registers in Denmark, Finland, Iceland and Norway of 2527 visually impaired children aged 0–17 years. This paper is concerned with the sex‐distribution in the registers and has documented a statistically significant excess of males in two of the registers (Denmark and Finland). The dominance of males seems to be related to two main conditions: 1. Genetic factors. 2. Perinatal factors. The genetic factors are mainly concerned with X‐linked inheritance. The fact that perinatal influences involve visual impairment in males more than in females is difficult to account for. It may be conjectured, that the basis for perinatal visual damage is determined by unknown prenatal, possibly genetic, factors.

Similar Items