Journal of Clinical and Experimental Ophthalmology
Open Access

Abstract

Positive Association of Complement Factor H Gene Variants with the Effect of Photodynamic Therapy in Polypoidal Choroidal Vasculopathy

Hiroaki Bessho, Shigeru Honda, Naoshi Kondo, Kunihiro Nishimura and Akira Negi

Purpose: To clarify the association of complement factor H (CFH) gene polymorphisms with the effects of photodynamic therapy (PDT) in polypoidal choroidal vasculopathy (PCV).
 
Methods: Ninety-three PCV subjects treated with PDT were recruited. Patients who showed anatomical success after the treatments with a single or two consecutive PDT sessions were classified as PDT responders. All others were classified as non-PDT responders. Three single nucleotide polymorphisms (SNPs), rs800292 (I62V), rs1061170 (Y402H) and rs1410996 were genotyped using the TaqMan assay.
 
Results: The genotype and allelic frequency of rs1061170 (Y402H) and rs1410996 were significantly different between PDT responders and non-responders. In these SNPs, the risk alleles for PCV prevalence were beneficial for PDT response. In the time course analysis, the cases with C/C genotype in rs1410996 showed a significant increase of mean visual acuity at 6 and 12 months after the first PDT.
 
Conclusions: The coding variants in CFH may be associated with the effects of PDT in PCV.