The contact lens dictonary online - from A to H

Astigmatism is the result of the cornea (the eye's outermost protective coating) becoming distorted, which causes light rays to be focussed on a number of different points on the retina. This means that the eye is unable to focus properly and vision is impaired. Eye-care specialists often liken the sensation to that of walking round fairground Hall of Mirrors.

Bifocal Contact Lenses provide a comfortable alternative to glasses for anyone suffering from presbyopia. The onset of presbyopia is typically associated with people in their forties and is characterized by the eye having difficulty in shifting focus between near and distant objects. If someone in your family needs to hold a book at an arm's length to read it, they may well benefit from bifocal contacts.

Colour Blindness is something of a misnomer and actually refers to an inability to distinguish certain colours from one another, rather than any genuine blindness. Colour blindness affects a significantly greater percentage of men than women and is caused when the colour sensitive cone cells fail to function properly. Light filtering contact lenses (which ‘filter' the visual spectrum to help differentiate between confusing colours, such as red and green) are now available with a prescription.

Daily Disposable Contact Lenses are designed to be worn for a single day, thrown away, and replaced with a new pair the next morning. Their increasing popularity is largely owed to the time and hassle saved on lens care, and they are widely recognized as by far the healthiest way to wear contact lenses.

Extended Wear Contact Lenses can be worn for twenty four hours a day, including during sleep. The time period they may be used for depends on which brand you choose.

Farsightedness (also referred to clinically as hyperopia) is a result of the distance between the lens and the retina being too short for the eye to focus properly on near objects. The condition is usually congenital.

Glaucoma is characterized by a build up in eye pressure, which if left untreated can lead to impaired peripheral vision and damage to the optic nerve. It's one of the leading causes of blindness in the developed world, but responds well to treatment if caught early. In the UK eye tests are provide free of charge if there history of glaucoma in the family.

Hard Contact Lenses may take slightly longer to get used to than soft lenses, but for some people suffering from astigmatism and pesbyopia they are the most effective method of visual correction (their comparative rigidity helps to ‘reshape' the cornea and lens).

Pink Fridge Online Magazine > dating online > marriage counselling > wedding planning guide > pregnancy symptoms & advice > how to work at home > car insurance advice > overcome depression > hairloss in women > weight loss > diet pills > skin care > tanning > baby gifts > planning a funeral > shopping for perfume > shopping for earrings > shopping for engagement rings > shopping for sunglasses > shopping for shoes > shopping for wedding favours > shopping for wine

© The Pink Fridge Online Magazine 2011 - Contact Lens Dictionary

Contact | Disclaimer | Sitemap | Advertising

 

 

 

General
Contact Lenses UK
Cleaning Care for Contact Lenses
Fitting Contact Lenses
Buying Contact Lenses
Novelty Contact Lenses

Types
Soft Contact Lenses
Toric Contact Lenses
Colour Contact Lenses
Crazy Contact Lenses
Bifocal Contact Lenses
Cosmetic Contact Lenses
Coloured Contact Lenses
Disposable Contact Lenses
Special Effects Contact Lenses

Brands
Focus Contact Lenses
Freshlook Contact Lenses
Acuvue Contact Lenses
Night & Day Contact Lenses

Accessories
Contact Lens Cases
Contact Lens Solution

Buying
Free Contact Lenses
Buy Contact Lenses Online
Order Contact Lenses Online
Discount Contact Lenses
Cheap Contact Lenses

Dictionary
A - H Terms
I - R Terms
S - Z Terms