A method for determining the susceptibility of an individual to an ocular condition selected from exfoliation syndrome and exfoliation glaucoma. The method comprises identifying a polymorphic site within the LOX1 gene or a polymorphic allele of the markers rs1048661 (SEQ ID NO: 106) and rs3825942 (SEQ ID NO: 107) and markers in linkage disequilibrium therewith. The presence of an arginine at position 141 or glycine at position 153 in the LOX1 protein, or the presence of allele G in rs1048661 or allele G in rs3825942 are indicative of increased susceptibility to an ocular condition.