zoom text size - | +

Glossary of Terms

Confused by some of the technical terms on our website?
Click on a letter below to find the word you're looking for.


Terms on this page


Print this definitionRigid Gas Permeable Contact Lenses

Otherwise known as Hard contact lenses, these are generally safer and healthier to wear than soft contact lenses due to the increased oxygen flow to the eye and the superior materials they are made of.

Although commonly people are hesitant (due to the fear of the word ‘hard' thinking this implies discomfort) to pursue fitting of hard lenses when recommended to them, the end result is usually healthier eyes and more stable vision that can be maintained for longer wearing times than many soft lens options.

Well maintained hard contact lenses will not usually show long term effects on the cornea as opposed to the higher risks of contamination associated with many types of soft contact lenses.

Glossary

Got Questions?

We've got answers!
View the Glossary or FAQ Section

Word of the Moment

Orthokeratology
Orthokeratology more commonly referred to as ‘Ortho-K', the use of contact lenses to reshape the cornea (front surface of the eyes) in order to reduce levels of myopia and astigmatism. The lenses are worn in the evening whilst sleeping and allow clear vision for the next day once removed upon waking. more