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.
Unlike traditional bifocals or trifocals, there are no visible lines separating the different fields of a progressive lens. Your eyes are seen clearly behind the progressive eyeglasses, you've got the same look as eyeglass wearers often half your age, and there are no lens lines to distract your vision.