The estimated marginal means of this model were 12.60 db (95% confidence interval: 10.44–14.76) retinal sensitivity for a spot within an area of fibrosis based on CFP grading and 23.00 db (95% confidence interval: 20.96–25.04) retinal sensitivity for a spot within an area graded as non-fibrosis (Table 2). This evidence concerns the gene CFP and fibrosis.