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.
1 This is the most commonly used lens for bifocal and multifocal lenses. 2  With a concentric bifocal pattern contact lens, the near correction is located in a small circle at the center of the lens and is surrounded by a larger circle that contains the distance correction.here are many different types of bifocal and multifocal lenses available on the market that correct different types of vision disorders. Multifocal and bifocal contact lenses are very similar to their glasses counterparts.