Optical correction of refractive error |
Eyeglasses | Unifocal/Single glasses |
Spherical and/or toric (i.e. cylindrical) |
Bifocal glasses Trifocal glasses Multifocal/progressive glasses |
Spherical and/or toric with addition(s) for near and or intermediate distances | ||
Contact lenses | Unifocal | Spherical and/or toric | |
Orthokeratology, which refers to the use of rigid gas‐permeable contact lenses, normally worn only at night, to improve vision through the reshaping of the cornea. | |||
Multifocal | Spherical and/or toric with addition for near and or intermediate distances | ||
Refractive surgery |
Lenses, Intraocular (IOLs) | Anterior chamber IOLs, Posterior chamber IOLs | |
Corneal Surgery, Laser | lamellar (LASIK, intraLASIK/FemtoLASIK) and surface (photorefractive keratectomy [PRK], laser epithelial keratomileusis [LASEK], and Epi‐LASIK) ablation | ||
Keratotomy, Radial | A procedure that consists of making numerous radial incisions which extended from the pupil to the periphery of the cornea in a pattern like the spokes of a wheel. |