Several bifocal and multifocal soft contact lenses for astigmatism are available in the United States. During your contact lens exam and fitting, your eye care practitioner will be able to determine whether you are a good candidate for them, and which brand is the best choice for your particular...
Progressive lenses can correct any mild residual astigmatism or other refractive error not fully corrected by your contacts. For this reason, eyeglasses with progressive lenses may give you sharper vision for specific activities like night driving. Progressive lenses allow you to see clearly at all d...
On the basis of two different tests, we here report that it has truly bifocal lenses, something that has been previously suggested only for certain trilobites [1]. Our evidence comes from (1) the relative contrast in images of a square wave grating and (2) the refraction of a narrow ...
aRGP lenses are the right solution for certain groups of people who are unsatisfied with soft lenses, such as vision fussy individuals, people with astigmatism, presbyopia or keratoconus, or individuals after a refractive surgery [11]. In fact, RGP lenses offer the best answer to bifocal lenses...
In some cases, doctors prescribe bifocals to children who have trouble focusing and suffer eye strain when reading. Children and young adults who need prescription glasses typically are recommended single-vision lenses. These lenses correct the wearer’s nearsightedness, farsightedness or astigmatism....
Multifocal LASIK — sometimes called presbyLASIK — is an advanced type of laser vision correction surgery that changes the shape of the eye'scorneato create different power zones for seeing at varying distances. Likeprogressive lensesand other multifocal eyeglasses and contact lenses, multifocal LASIK...