Antireflective film comprising large particle size fumed silica

An antireflective film comprising a light transmissive substrate and a low refractive index layer disposed on the light transmissive substrate forming an interface wherein the low refractive index layer comprises the reaction product of a polymerizable resin composition comprising at least 55 wt % fumed silica and the low refractive index layer is a single layer that increases in porosity from the light transmissive substrate interface to an opposing porous surface, wherein the fumed silica has an average aggregate particle size as measured by intensity of at least 100 nm.