PURPOSE To discriminate the visual symptoms and signs of Meares-Irlen syndrome (MIS) and nonspecific dyslexia from other ophthalmologic diseases (NODs). METHODS Forty-five patients were enrolled. Thirty four of the patients with MIS whose symptoms improved with tinted lenses comprised MIS group. The other 11 patients whose reading difficulty improved with other ocular therapy and did not requ...

Simple, fast detection of cerebrospinal fluid leakage due to head injuries is important for diagnosis and early start-up of correct treatment. We are not aware of any good, rapid diagnostic tests for detecting cerebrospinal fluid. Measuring sugar concentration and protein content normally yields uncertain results. At the University Hospital of North Norway in Tromsø, tinted chlorhexidine has be...

Photophobia is a complex disorder that can involve aversion not simply to bright light but spatial patterns, colour and flicker. The use of tinted lenses reduce photophobia in neurological diseases has long history. Rarely the possibility different individuals might require individually tailored their needs been considered. Here we explore this using Intuitive Colorimeter system. colorimeter il...

The effect of tinted nonoptical (Irlen) lenses was investigated with 29 lens-using subjects and a control group of 31 subjects. Assessment of reading four months after the initial screening showed a significant improvement in reading rate and comprehension but not in accuracy. A significant decrease in the number of pauses while reading was also noted for the lens users as well as increases in ...