Solution

Question 1

Types of Solution:

Daily Disposables

Answer 1

No solution required

Question 2

Types of Solution:

Bi-weekly/Monthly

Answer 2

Peroxide
Multipurpose
Saline (to rinse/re-wet)

Question 3

Types of Solution:

Non-Disposables Soft

Answer 3

Peroxide
Multipurpose
Daily Cleaner
Protein Remover
Saline (to rinse)

Question 4

Types of Solution:

RGP (Corneal & Scleral

Answer 4

Wetting & Soaking Solution
Multipurpose
Conditioning
Daily Cleaner
Protein Remover

Question 5

Requirements of Contact Lens Solution

Answer 5

Effective
Compatible
Non-Toxic
East to Use
Inexpensive

Question 6

Requirements of Contact Lens Solution:

Effective

Answer 6

Good at function

Effective in reasonable quantities and in small time frame

Question 7

Requirements of Contact Lens Solution:

Compatible

Answer 7

Compatible with lenses it’s prescribed to work with

Avoid absorption of preservatives which released into eye

Question 8

Requirements of Contact Lens Solution:

Non-Toxic

Answer 8

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

Question 9

Requirements of Contact Lens Solution:

Easy to Use

Answer 9

Complicated instructions are more likely to be ignored or incorrectly followed

Question 10

Requirements of Contact Lens Solution:

Inexpensive

Answer 10

Necessary aspect, therefore should be cheap to encourage use.

Question 11

Reasons for Non-Compliance

Answer 11

Cost
Convenience 
Ignorance
Bad advice
Lack of proper instruction

Question 12

Contact Lens Solution Must:

Answer 12

Disinfect
Decontaminate
Enhance

Question 13

Contact Lens Solution Must:

Disinfect

Answer 13

Destroy or inhibit growth of microbes to prevent contamination

Question 14

Contact Lens Solution Must:

Decontaminate

Answer 14

Remove deposits and build up

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

Question 15

Contact Lens Solution Must:

Enhance

Answer 15

Ensures lens remains in good condition and maintain optimum vision

Question 16

Examples:

Bacteria

Answer 16

Staphylococcus Pneumonia

Question 17

Examples:

Virus (Dendritic Ulcer)

Answer 17

Herpes Simplex

Question 18

Examples:

Fungus

Answer 18

Candida Albicans

Question 19

Examples:

Protozoa

Answer 19

Acanthamoeba

Question 20

Can Cause:

Staphylococcus Pneumonia

Answer 20

Conjunctivitis
Keratitis
Blepharitis

Question 21

Can Cause:

Herpes Simplex

Answer 21

Keratitis

Conjunctivitis

Question 22

Can Cause:

Candida Albicans

Answer 22

Keratitis

Endophatimitis

Question 23

Can Cause:

Acanthamoeba

Answer 23

Keratitis

Question 24

Solution Components (function):

Preservatives

Answer 24

Keeps sterile
Prevents growth
Destroys microbes

(can cause allergies

Question 25

Solution Components (function): Chelating Agents

Answer 25

Enhance action of preservatives | Prevents bacterial growth

Question 26

Solution Components (function): Buffers

Answer 26

Maintain pH (6-7)

Question 27

Solution Components (function): Tonicity Agents

Answer 27

Maintain osmotic potential of tears | imbalance causes discomfort and changes to parameters of lens

Question 28

Solution Components (function): Viscosity Agents

Answer 28

Thickens solution | Provides cushion

Question 29

Solution Components (function): Wetting Agents

Answer 29

Helps solution spread across surface of lens | Increase wetablility

Question 30

Solution Components (function): Surfactants

Answer 30

Removal of surface deposits

Question 31

Solution Components (function): Stabilisers

Answer 31

Prevents solution breakdown | Stabilises chemical formula

Question 32

Solution Components (function): Enzymes

Answer 32

Breaks down proteins and lipid build up

Question 33

Solution Components (example): Preservatives

Answer 33

Aldox

Question 34

Solution Components (example): Chelating Agent

Answer 34

EDTA

Question 35

Solution Components (example): Buffers

Answer 35

Sodium Borate

Question 36

Solution Components (example): Tonicity Agents

Answer 36

Sodium Chloride

Question 37

Solution Components (example): Viscosity Agent

Answer 37

Methylcellulose

Question 38

Solution Components (example): Wetting Agent

Answer 38

Polyvinyl Alcohol

Question 39

Solution Components (example): Surfactants

Answer 39

Polanxine

Question 40

Solution Components (example): Stabilisers

Answer 40

Phosphonic Acid

Question 41

Solution Components (example): Enzymes

Answer 41

Aldox

Question 42

Multipurpose: Advantages

Answer 42

Simple Convenient Compatible Cheap

Question 43

Multipurpose: Disadvantages

Answer 43

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

Question 44

Peroxide: Advantages

Answer 44

``` Very effective Kills pathogens No preservatives Good surfactant cleaner Prolongs life ```

Question 45

Peroxide: Disadvantages

Answer 45

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

Question 46

Rigid Lens Care System

Answer 46

Wetting Soaking Daily Cleaner MPS

Question 47

Rigid Lens Care System: Wetting

Answer 47

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

Question 48

Rigid Lens Care System: Soaking

Answer 48

Antimicrobial for safe storing | Includes: tonicity, wetting, preservatives, surfactants and chelating agents

Question 49

Rigid Lens Care System: Daily Cleaner

Answer 49

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

Question 50

Rigid Lens Care System: MPS

Answer 50

Combination solutions