CLM - Soft Contact Lenses - Week 4 Flashcards
Does Australia have a high or low proportion of RGP lens fits?
Lo
hat is the most popular modality of contact lenses world wide?
Soft
Do contact lenses have a short or long adaptation period?
Short
Do soft contact lenses induce corneal distortion?
Minimally
Do soft contact lenses cause spectacle blur?
Minimally
Do soft contact lenses have high or low on-eye stability?
High
Do soft contact lenses have a large or small optic zone? What does this mean for flare?
Large optic zone, giving minimal flare
Is aniseikonia larger or smaller with soft contact lenses compared to spectacles?
Reduced aniseikonia
Are anisometropic prescriptions more or less tolerated with soft contact lenses compared to spectacles?
Improved tolerance
Are soft contact lenses easy to replace?
yesd
Do soft contact lenses have a high or low risk of foreign body entrapment?
Low
Are soft contact lenses appropriate for high degrees of astigmatism?
Limited application
Are soft contact lenses suitable for irregular corneas like keratoconus or trauma?
May not be suitable
Compare the incidence of corneal inflammatory and infective events of soft contact lenses with RGP lenses.
Higher incidence
Are soft contact lenses durable?
Relatively low durability compared to RGP lenses
What deposits are soft contact lenses prone to (3)?
Protein
Mineral
Lipid
How often were conventional contact lenses replaced? What is the deadline? How long could they last?
Generally replaced in 6 month intervals
Should at least be replaced annually
Could last for 3+ years
How does the lens cost of conventional contact lenses compare with disposable soft contact lenses?
The lens itself is lower cost, but with care systems, it is more expensive
Do conventional contact lenses have a higher or lower overall rate of adverse reactions compared to disposable lenses?
Higher