The symptoms of accommodative insufficiency besides the blurring of vision are asthenopia, headache, eye pain, with smarting and burning of the eyelids, aprosexia, intolerance of light, sometimes also vertigo and nausea. The symptoms are usually well marked and sometimes exceedingly severe; in a small minority of cases they are slight or missing altogether. This is particularly the case in static insufficiency, in which the blurred vision, readily relieved by glasses, may be the only manifestation.
A look at the past. . .. Arch Ophthalmol. 2001;119(5):760. doi:10.1001/archopht.119.5.760