Toric Lenses
Toric lenses are designed to have the impact of a cylindrical lens, normally together with the impact of a spherical lens. Toric lenses are sometimes utilized by nearsighted and farsighted individuals who even have astigmatism. Normally, these individuals have been advised they don’t seem to be appropriate for normal contact lenses, however could possibly use toric lenses. If one in all your eyes has astigmatism and the opposite doesn’t, it’s possible you’ll be advised to make use of a spherical lens in a single eye and a toric lens within the different. Toric lenses are constituted of the identical supplies as common contact lenses however have a couple of notable variations. A few of these variations embrace:
– They aren’t symmetrical and should comprise a particular ‘high’ and ‘backside’
– They have to be designed to take care of their orientation
– They appropriate for each cylindrical aberration and spherical aberration
– They could be a bit dearer and are typically meant for prolonged put on