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Solutions Flashcards

1
Q

antimicrobial quality of care system

A

Must be safe for the eye and effective against killing organisms.
Can be a preservative- resists growth in solution or a disinfectant- eliminates germs from lenses.

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2
Q

Thimerosal

A

Methyl based preservative
Small and causes allergic reactions
Not used much anymore

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3
Q

Chlorhexidine

A

Kills bacteria, not fungus
Preservative and disinfectant.
Small, causes allergies.

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4
Q

PHMB

A

Similar to Chlorhexidine BUT Larger molecule.

Kills bacteria, not fungus

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5
Q

Biguanides

A

Smilar to Chlorhexidine. Kills bacteria, not fungus.

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6
Q

Polyquad/polyquaternium

A

Kills bacteria, not fungus.

large molecule.

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7
Q

H202

A

Kills bacteria and fungus and acanth trophes

Penetrates lens matrix and causes bubbles to form

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8
Q

Aldox (brand)

A

Kills bacteria and fungus.

Gave optic free stand alone approval for no rub

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9
Q

BAK

A

Not used on soft lenses. Binds and is toxic in eye wash.

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10
Q

EDTA

A

Chelating agent. Binds metal ions needed for growth. Good gram neg coverage.

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11
Q

Cleaning ability of a solution

A

Removes debris/microorganisms

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12
Q

5 types of cleaning agents

A 
Surfactants- forms micelles 
Poloxamine 
Pluronic 
Sodium Citrate 
Isopropyl alcohol- kills active and inactive acanth.
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13
Q

Protein removers (3 types) aka enzyme products

A

Pancreatin, substiliin A, papain

Traditionally used 1x per week
Tablets, vials, saline or MPS. Newer products- liquid drops.

poor compliance bc cumbersome to use.

***RINSE lens with saline prior to putting in eye. After soaking!

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14
Q

Pros and cons to heat disinfection

A

Great disinfection and cheap (uses saline while heating)

Cannot heat group 4 and cooks proteins onto lens- they don’t last as long.

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15
Q

There are 3 optifree solutions (alcon)

A

Optifree express
Optifree replenish
Optifree puremoist

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16
Q

Opti free express
2 preservatives
1 cleaner

A

Polyquad and aldox

Sodium citrate cleaner

17
Q

Opti free repleniSH

A

Developed for silicone hydrogels.
TearGlyde attracts moisture to the lens surface.
This is a polar molecule- hydrophobic part attaches to lens, hydrophilic part attaches to water.

18
Q

Optifree pure moist

A

Further refinement of RepleniSH

Tear glyde AND hydraglyde wetting agents.

19
Q

Blink RevitaLens (J and J)
3 preservatives
1 lubricant/cleaner

A

Biguanide, polyquad, EDTA.

Tetronic surfactant cleaner.

**effective against acanth cysts !

20
Q

Complete (J and J)

2 preservatives

A

PHMB, EDTA
“easy rub”
No wetting agent bc it created biofilm in the past.

21
Q

ReNu advanced (b and L)

  • 3 preservatives
  • 2 moisture agents
A

Biguanide, polyquad, alexidine (biguanide)

Moisture agents to help w comfort- poloxamine, poloxamer 181

22
Q

BioTrue (b and L)

-2 preservatives

A

Biguanide and polyquad

Bio inspired- lubricant, matches 7.5 pH of tears, keeps lysozymes intact (natural protective proteins on eye)

23
Q

Clear Care Alcon

A

1 bottle peroxide system
Surfactant cleaner in peroxide
Rinse lenses in basket for 5 seconds w clear care then soak for 6 hours

GP ok but must rub, no conditioning agent.

24
Q

Oxysept (J and J)

A 
one bottle peroxide system 
Surfactant cleaner in peroxide 
Rinse lenses in basket for 5 seconds w oxysept, then soak. 
**ADD neutralizing tablet 
Turns pink when done

GP Ok, must rub

25
Q

Boston Simplus (B and L)

A

RGP MPS
Chlorhexidine and PHMB
Rub after soak!!!!

Rinse- soak- rub
Good protein removal

26
Q

Is Chlorhexidine safe for soft and hard CLs?

A

Small so will attach to soft CL and cause allergic rxn. Safe for GPs- will not attach.

27
Q

Unique pH (Menicon)

A

RGP MPS
Polyquad and EDTA
Adjustable viscosity based on pH of tears.
Less viscous than boston.

Cannot buy in local stores

28
Q

Boston Original

A

Cleaner and conditioner

Cleaner is abrasive to silicone. Not good for soft/high Dk lenses.

Conditioner is viscous to increase gettability.

Preservatives include chlorhexidine and EDTA

*cannot use this on any lenses coated with hydra peg

29
Q

Ultrazyme (j and J)

A 
Subtilisin A 
Weekly product 
PEROXIDE SYSTEM 
1 tablet in basket 
MUST rinse lens prior to insertion. Need saline!
30
Q

Boston Liquid Enzyme

A

Subtilisin A
Weekly product for GPs
2 drops in each well.
Must rinse lenses prior to insertion.

31
Q

Progent (menicon)

A

GP Bi weekly cleaner
Bleach and KBr mixed
Rinse before putting in eye

32
Q

When to use PF saline

A

Scleral

33
Q

Generic solutions are/arent the same as brand

A

Are not the same!!

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