SCL Care Flashcards
1
Q
Challenges for CL solution
A
- subjected to testing to protect against organisms
2
Q
Properties all solutions must have
A
- sterile And stable
- harmless to eye
- compliance with other solutions
- no adverse effect on material
- self sterilising
3
Q
Steps to cleaning
A
- Clean
- Rinsing
- Disinfecting and storage
4
Q
Purpose and mechanism of cleaning
A
- reduces deposits
- including lens rub - mechanical removal
- hydrophobic ends cluster round debris to form micelles
- hydrophilic ends react to water and micelle whisked off lens
- effective against lipid and inorganic
- enhance wettability
5
Q
Multi purpose solution steps
A
- convenient and most common
- anti fungal properties
Steps
- 3 drops of solutions
- rinse each side
- place lens in case and fill with fresh solution
- let case dry
- replace monthly
6
Q
Hydrogen peroxide CL system, and steps
A
- very different to MPS
- broad anti microbial activity
- destroys pathogen by oxidisation, by protein desaturation
- preservative free
- requires catalyst to neutralise
Steps
- rinse hands
- remove lens, put in case
- rinse each lens in holder
- fill lens case
- place in a lens holder
- allow lens to soak for 6 hours
7
Q
Allergies of CL solutions
A
- similar to ocular allergies
- usually die to solutions
8
Q
Use of rewetting drops
A
- often used by Px
- gives temporary relief
- drain ocular surface quickly
9
Q
Deposits composition and risk
A
- protein/lipids/mucing/polysaccharides can build up
- common when lenses not replaced
- increased and reduced comfort
- reduced VA
- increased infection risk
10
Q
Mistakes in SCL care
A
- not rubbing lenses
- not changing CL case
- using wrong solution
- topping up CL solution
- no hand washing
- tap water
- expired solutions
11
Q
What Px are hydrogen peroxide good for
A
- prone to allergies
- preservative allergies
