@article {Gregor547, author = {Z. Gregor and L. Joffe}, title = {Senile macular changes in the black African.}, volume = {62}, number = {8}, pages = {547--550}, year = {1978}, doi = {10.1136/bjo.62.8.547}, publisher = {BMJ Publishing Group Ltd}, abstract = {One thousand black African and 380 white Caucasian patients over the age of 50 were examined for evidence of age-related macular changes, namely, drusen, pigment epithelial atrophy, and disciform macular degeneration. Drusen and pigment epithelial changes were found to occur twice as commonly in Caucasians as in Africans; there was a much greater difference in the prevalence of disciform macular degeneration between the 2 groups. The cause of the differences remains unexplained.}, issn = {0007-1161}, URL = {https://bjo.bmj.com/content/62/8/547}, eprint = {https://bjo.bmj.com/content/62/8/547.full.pdf}, journal = {British Journal of Ophthalmology} }