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Contact Lenses > Solution > Flashcards

Solution Flashcards

1
Q

Types of Solution:

Daily Disposables

A

No solution required

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2
Q

Types of Solution:

Bi-weekly/Monthly

A

Peroxide
Multipurpose
Saline (to rinse/re-wet)

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3
Q

Types of Solution:

Non-Disposables Soft

A 
Peroxide
Multipurpose
Daily Cleaner
Protein Remover
Saline (to rinse)
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4
Q

Types of Solution:

RGP (Corneal & Scleral

A 
Wetting & Soaking Solution
Multipurpose
Conditioning
Daily Cleaner
Protein Remover
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5
Q

Requirements of Contact Lens Solution

A 
Effective
Compatible
Non-Toxic
East to Use
Inexpensive
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6
Q

Requirements of Contact Lens Solution:

Effective

A

Good at function

Effective in reasonable quantities and in small time frame

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7
Q

Requirements of Contact Lens Solution:

Compatible

A

Compatible with lenses it’s prescribed to work with

Avoid absorption of preservatives which released into eye

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8
Q

Requirements of Contact Lens Solution:

Non-Toxic

A

Components should be non-toxic as risk of contact with eye

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9
Q

Requirements of Contact Lens Solution:

Easy to Use

A

Complicated instructions are more likely to be ignored or incorrectly followed

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10
Q

Requirements of Contact Lens Solution:

Inexpensive

A

Necessary aspect, therefore should be cheap to encourage use.

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11
Q

Reasons for Non-Compliance

A 
Cost
Convenience 
Ignorance
Bad advice
Lack of proper instruction
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12
Q

Contact Lens Solution Must:

A

Disinfect
Decontaminate
Enhance

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13
Q

Contact Lens Solution Must:

Disinfect

A

Destroy or inhibit growth of microbes to prevent contamination

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14
Q

Contact Lens Solution Must:

Decontaminate

A

Remove deposits and build up

Deposits effect comfort and vision (can be organic, lipids or inorganic, dust)

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15
Q

Contact Lens Solution Must:

Enhance

A

Ensures lens remains in good condition and maintain optimum vision

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16
Q

Examples:

Bacteria

A

Staphylococcus Pneumonia

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17
Q

Examples:

Virus (Dendritic Ulcer)

A

Herpes Simplex

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18
Q

Examples:

Fungus

A

Candida Albicans

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19
Q

Examples:

Protozoa

A

Acanthamoeba

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20
Q

Can Cause:

Staphylococcus Pneumonia

A

Conjunctivitis
Keratitis
Blepharitis

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21
Q

Can Cause:

Herpes Simplex

A

Keratitis

Conjunctivitis

22
Q

Can Cause:

Candida Albicans

A

Keratitis

Endophatimitis

23
Q

Can Cause:

Acanthamoeba

A

Keratitis

24
Q

Solution Components (function):

Preservatives

A

Keeps sterile
Prevents growth
Destroys microbes

(can cause allergies

25
Q

Solution Components (function):

Chelating Agents

A

Enhance action of preservatives

Prevents bacterial growth

26
Q

Solution Components (function):

Buffers

A

Maintain pH (6-7)

27
Q

Solution Components (function):

Tonicity Agents

A

Maintain osmotic potential of tears

imbalance causes discomfort and changes to parameters of lens

28
Q

Solution Components (function):

Viscosity Agents

A

Thickens solution

Provides cushion

29
Q

Solution Components (function):

Wetting Agents

A

Helps solution spread across surface of lens

Increase wetablility

30
Q

Solution Components (function):

Surfactants

A

Removal of surface deposits

31
Q

Solution Components (function):

Stabilisers

A

Prevents solution breakdown

Stabilises chemical formula

32
Q

Solution Components (function):

Enzymes

A

Breaks down proteins and lipid build up

33
Q

Solution Components (example):

Preservatives

A

Aldox

34
Q

Solution Components (example):

Chelating Agent

A

EDTA

35
Q

Solution Components (example):

Buffers

A

Sodium Borate

36
Q

Solution Components (example):

Tonicity Agents

A

Sodium Chloride

37
Q

Solution Components (example):

Viscosity Agent

A

Methylcellulose

38
Q

Solution Components (example):

Wetting Agent

A

Polyvinyl Alcohol

39
Q

Solution Components (example):

Surfactants

A

Polanxine

40
Q

Solution Components (example):

Stabilisers

A

Phosphonic Acid

41
Q

Solution Components (example):

Enzymes

A

Aldox

42
Q

Multipurpose:

Advantages

A

Simple
Convenient
Compatible
Cheap

43
Q

Multipurpose:

Disadvantages

A

Preservative allergies
6 hours to work
Not as effective as peroxide
Requires separate protein remover if worn for long periods

44
Q

Peroxide:

Advantages

A 
Very effective
Kills pathogens
No preservatives
Good surfactant cleaner
Prolongs life
45
Q

Peroxide:

Disadvantages

A

Minimum soak of 6hrs
Higher risk of non-compliance
Neutralisation begins quickly - little time in peroxide
Neutralisation leaves contact lenses in water

46
Q

Rigid Lens Care System

A

Wetting
Soaking
Daily Cleaner
MPS

47
Q

Rigid Lens Care System:

Wetting

A

Improves wetablility
Provides cushion
Includes: tonicity, viscosity, wetting, preservatives and chelating agents

48
Q

Rigid Lens Care System:

Soaking

A

Antimicrobial for safe storing

Includes: tonicity, wetting, preservatives, surfactants and chelating agents

49
Q

Rigid Lens Care System:

Daily Cleaner

A

Removes deposits
Enhances disinfectant properties
Includes: detergent, preservatives and chelating agents

50
Q

Rigid Lens Care System:

MPS

A

Combination solutions

Contact Lenses (3 decks)

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