Abstract: Objective To investigate the associated factors with the occurrence of subsensory choroidal neovascularization (CNV). Methods The images of optical coherence tomography (OCT) of 95 cases (105 eyes) with CNV diagnosised by fundus examination, flurescein angiography (FA) were analysed. Results The percentage of subsensory retina CNV was significantly higher in the exudative age-related macular degeneration (AMD) cases with course within 2 months than course over 2 months( χ²=6.687,P=0.010). The percentage of subsensory retina CNV was significantly higher in the non-exudative AMD cases than that of the exudative AMD cases (χ²=42.992,P=0.000). Conclusion Subsensory retina CNV mainly occur in non-exudative AMD cases and AMD cases with short course.

Key words: choroidal neovasculization, optical coherence tomography