Contact lenses
A contact lens is an optical lens, located directly on the cornea of the eye. It is a corrective tool to modify and eliminate refractive defects of sight. Its function can be protective (preventive and therapeutic), diagnostic (i.e. during ophthalmological examinations) or cosmetic (i.e. to change eye colour).
The first contact lenses were made of glass. Current materials include silicone hydrogel. Contact lenses can be classified according to various criteria. The simplest classifications are hard lenses or soft lenses.
Your questions
Comments
Other terms starting at C
- Center thickness
- Chelation
- Choroid
- Ciliary body
- Coloboma of the iris
- Conjunction
- Conjunctiva
- Conjunctival hyperemia
- Contact lenses
- Contactology
- Continuous wear contact lenses (Extended wear)
- Contraindication
- Cornea
- Corneal contact lenses
- Corneal dystrophy
- Corneal edema
- Corneal endothelium
- Corneal erosion
- Corneal foreign body
- Corneal permeability
- Corneal ulcer
- Correction
- Cosmetic contact lenses
- Curvature of contact lenses