Possible eye damage after using at home IPL hair removal device (Lux Skin Co)?

While using an IPL hair removal device on my boyfriend’s back, my finger accidentally slipped and hit the button when the window was not pressed against the skin. We both saw a bright flash light, and l‘m worried that we may have damaged our retinas or something! Last night, I felt heat after seeing the light and it was like the backs of my eyes were sunburnt. I started sweating after seeing the flash, and I was very sensitive to light. This morning, my eyes are blurry. What do I do?