Wild type and Fzd4+/- mice were exposed to our OIR model from P7 to P12. (A) At P12 whole mounted retinas were stained with Alexa Fluor 594-conjugated GS-IB4 lectin and visualized using confocal microscopy (panel i). Vaso-obliterated areas are shown in white (panel ii). (B). Quantification of the vaso-obliterated area. Imaging analyses are expressed as mean ± standard error of the mean (SEM) and P values were calculated using a one-way ANOVA unpaired t-test. NS, not significant.</p