Week 5 - Color Lenses, & Extended Wear

Question 1

Do NOT assume the people in case study examples are lying. T/F

Answer 1

TRUE

Question 2

What are handling tints?

Answer 2

these are tints added to a normal cl so they can be seen if dropped

Question 3

What are handling tints also known as? 2

Answer 3

‘lens visibility tints’
‘locator tints’

Question 4

What does a cosmetic tint do?

Answer 4

designed to beautify an otherwise normal appearance

Question 5

What are prosthetic tinted lens meant to do?

Answer 5

to normalize an otherwise
abnormal appearance.

Question 6

How does a Performance Enhanced Tinted Lens work?

Answer 6

enhancing contrast between objects like ball and the environment

Question 7

What is the purpose of prophylactic tints?

Answer 7

To prevent injury or disease of the eye

Question 8

What is the purpose of a theatric tinted lens?

Answer 8

Create dramatic or theatrical effects. (Halloween)

Question 9

What is the purpose of a therapeutic tinted lens?

Answer 9

A lens that is designed to treat an underlying defect or disease.

Question 10

How do prophylactic tints protect the eye? 3

Answer 10

• Protection from excessive UV light
• Use photosensitizing drugs
• Exposed to artificial UV source

Question 11

Who do prophylactic tints help? 2

Answer 11

• Outdoor lifestyle/exposed to high levels of UV
• Aphakic px

Question 12

How can therapeutic tinted lenses help someone with andiridia or other pupil anomalies?

Answer 12

by reducing excessive photophobia and glare

Question 13

What are the 3 types of cosmetic tints?

Answer 13

enchanched tints
opaque tints
combination tints

Question 14

Why is frequently replacing extended wear lenses beneficial and increase EW success?

Answer 14

restricts exposure of the eye to accumulated
aged or denatured protein build ups by controlling the deposit build up

Question 15

What can accumulated aged or denatured protein on an extended wear lens cause (conditions 2)?

Answer 15

-contact lens pappilary conjunctivitis (CLPC)/(GPC)
-infiltrative keratitis.

Question 16

What are the 3 types of prosthetic tinted lenses?

Answer 16

-Painted iris and clear pupil
-painted iris and opaque pupil
-clear iris and opaque pupil

Question 17

Who benefits from a prosthetic tinted lens that is a painted iris and clear pupil?

Answer 17

sighted eye with a disfigured iris

Question 18

Who benefits from a prosthetic tinted lens that is a painted iris and opaque pupil?

Answer 18

a nonsighted eye

Question 19

Who benefits from a prosthetic tinted lens that is a clear iris and opaque pupil?

Answer 19

a nonsighted eye with a dense cataract

Question 20

What are 4 common conditions that can arise from extended wear cls? 4

Answer 20

-corneal hypoxia
-Capillary conjunctivitis
-Microbial conjunctivitis
-Infiltrate keratitis

Question 21

What symptoms can be a sign of adverse effects of extended wear cls? 5

Answer 21

-redness/ inflammation
-decrease in vision
-unusual discharge
-pain/discomfort
-photophobia

Question 22

What are the 5 different categories of wearing schedules?

Answer 22

-frequent replacement lenses
-flexible lenses
-extended wear lenses
-continous wear lenses
-disposable lenses

Question 23

What are frequent replacement lenses?

Answer 23

they are regular replacement of soft cls at a predetermined interval every 1 to 3 months

Question 24

What is an advantages of frequent replacement lenses?

Answer 24

less portein deposits and debris which reduces the risk of inflammation and infection

Question 25

What are flexible lenses?

Answer 25

intermittent use of cls overnight or during sleep

Question 26

Who are flexible wear lenses suitable for?

Answer 26

people who need to sleep in their lenses every so often but not all the time

Question 27

What are extended wear lenses?

Answer 27

regular use of cls overnight or during sleep for periods of up to 1 month

Question 28

Who are extended wear lenses suitable for?

Answer 28

pxs who prefer to not remove lenses every night

Question 29

What are continous wear lenses?

Answer 29

use of cls without the removable of periods exceding 1 month

Question 30

Why are continous wear lenses uncommon? 2

Answer 30

high risk of microbial keratitis
high risk corneal hypoxia

Question 31

What are disposable lenses(most common)?

Answer 31

-soft lenses designed for single use or short term tear

Question 32

What are the different types of disposable lenses? 4

Answer 32

-daily disposable
-weekly disposable
-biweekly/fortnighly disposable
-monthly disposable