de Sutter E, Havers W, Höpping W, Zeller G, Alberti W
Sint-Maartensziekenhuis, Kortrijk, Belgium.
Ophthalmic Paediatr Genet. 1987 Jun;8(2):85-8. doi: 10.3109/13816818709028522.
At present there is no satisfactory classification or staging system. In order to compare the Reese classification (Reese, 1963), the Essen classification (Höpping, 1983) and a new classification, a method of evaluating different parameters was created in order to get an optimal classification of survival.
