5.1.2 Instructs the px in soft lens handling and how to wear and care for them (APR)

Question 1

Contact lenses

Answer 1

Opteyes / bioinfinity
Dk/t 160, WC 48%, modulus 0.75

Umere / clarity 1 day
Dk/t 86, WC 56%, modulus 0.5

Vitrea / daily ACP
Dk/t 26, WC 69%

Question 2

Why might px prefer a hydrogel SCL?

Answer 2

SiHys are higher modulus/stiffer – px may be more aware of lens on eye

Higher water content in hydrogel – px may feel like SiHys are dryer on eyes (but this allows for higher Dk/t)

But SiHys = higher Dk/t = less risk of hypoxia and resultant complications incl. neovasc/infiltrates

Question 3

Insertion

Answer 3

Wash hands, dry thoroughly – emphasise more important than ever & to use soap/water not alcohol gel

Right or left-handed

Check lens details and expiry, open blister, check for any nicks/tears

Lenses out the packaging and sit it on your fingertip – ensure correct way round

CL index finger dominant hand,

Non-dominant hand – look down and secure upper lid

Dominant hand middle finger – look up and secure bottom lid

Px looks nasal – lens placed on sclera

Look straight ahead, and then in 4 POAG

Gently release lids

Takes time to settle; If it still feels uncomfortable after a while, its best to take it out and have a look for any rips/tears and give it a rinse with solution

Question 4

Removal

Answer 4

Similar to insertion - same hands as previous
Look down, secure top lid
Look up, secure bottom lid
Px to look nasal, slide lens into centre of eye
Pinch off using index finger and thumb

Question 5

Lens hygiene

Answer 5

Dailies - throw out lenses after removal, never store

Monthlies, all steps with MPS
- Rub – 15s each side
- Rinse
- Fill case to ridge inside
- Ready to store over night
- In the morning – insert lenses, empty case of all solution, rinse with MPS and leave to airdry facedown over the day with the caps off to avoid condensation
- 30 days not 30 wears
- Replace lens, lens case & solution after 30 day

Question 6

Ultrapurpose (biotrue, b&l )

Answer 6

more enhanced protein management system, and has a dual disinfecting system

Question 7

Mulitpurpose

Answer 7

worst (Coopervision All in one Light)

Question 8

Peroxide solution

Answer 8

(Coopervision – Refine One Step)
- 3% hydrogen peroxide
- Sodium chloride – tonicity
- Sodium phosphates – buffer
- Poloxamer – disinfecting/cleaning
- HEDP

• Catalyst to neutralise peroxide – platinum disc/tablet
• Lenses into baskets, rinse each lens in the holder for 5 seconds with peroxide solution, fill the lens case up with solution to the marked line, place lens holder inside of case and close cap, solution will bubble – ensure lenses upright and fully immersed. Allow lenses to soak for at least 6 hours

Question 9

Toxicity/preservative allergy

Answer 9

More gentle solutions
Hydrogen peroxide care system
Switch to daily lenses

Question 10

Other things

Answer 10

Rewetting drops
SCL protein removers – papain/pancreatin/subtilisin A or B

Question 11

Types of solutions in store:

Answer 11

Easypurpose
Ultrapurpose
Mulitpurpose
Peroxide solution

Question 12

Dos/Donts

Answer 12

DOs
Good general hygiene, washing hands etc
Good lens and case hygiene
Insert lenses before applying makeup

DONTs
Sleep in lenses
Swim/shower/water near lenses
Do not wear lenses if any pain/redness/discomfort
Change cleaning regime without first consulting optometrist
Wear for longer than advised