Heatmap of gene expression changes between posterior pole retinal punches of HIV-positive (10 samples on the right) and HIV-negative donor eyes (six samples on the left).

<p>Red and blue boxes indicate relative over- and under-expression with respect to a mean level between the two groups. Only genes with regularized <i>t</i>-statistic > 1 have been included. Symbols in blue indicate genes discussed in text. The samples are ordered by the donors’ time of death from left to right in each group.