Noise sensitivity may develop as a result of an abnormality in the middle or inner ear. Trauma to the ear may cause noise sensitivity. Noise sensitivity may be present with migraine headaches. Noise sensitivity may occur as a side effect of certain medications. Noise sensitivity may occur as a result of an ear infection. People with misophonia find it impossible to tolerate certain sounds.
Types of Eyeglass Lenses. Single Vision. The single vision lens is prescribed if you need correction for one field of vision, either for distance or items up close. Eyeglass Lens Direct offers a number of options for the single vision lens wearer.
by Simon Berry, Optometrist. Your child has been prescribed glasses with bifocal lenses to help them to read. They have been found to have a problem with the way in which their eyes focus on close objects. The bifocal lens enables them to bring near tasks into sharp focus. The medical term for describing this problem is an accommodative lag.