Soft Cl Complications

Front 1

if you have hypoxia, you should ______ the Dk/t

Back 1

increase (O2 transmissability)

Front 2

Siccation happens more often in _______ and ___ h2o content hyrogel lenses.

Back 2

thin, low h2o

Front 3

What are 2 signs of peripheral corneal furrow staining?

Back 3

1- limbal epithelial hypertrophy
2- peripheral corneal "corrugation"
(both with furrow staining)

Front 4

_____ is radial staining around the corneal periphery, near the limbus.

Back 4

Limbal epithelial hypertrophy

Front 5

Name 3 possible deposits on a hydrogel lens.

Back 5

1- lipids
2- proteins
3-jelly bumps

Front 6

If the corneal is hypoxic or has edema, what might you see, where are these located?

Back 6

Striae, in decemets membrane, in the central cornea

Front 7

______ are deac cells which have moved through the epithelium to the ocular surface with normal cell turnover. These are seen with retro. Do they indicate hypoxic conditions?

Back 7

Microcysts and Vacuoles, excellent indicator for hypoxia

Front 8

____________ is an acuumulation of fluid (small) filled cysts within the epithelium found in the central cornea secondary to lens wear.

Back 8

mircocystic edema, theze are larger and different from microcysts and vacuoles

Front 9

What are 4 conditions that might encourage neovasculariztion?

Back 9

1- hypoxia
2- tight fitting lens
3- damaged lens
4- low Dk value

Front 10

Is neovascularization active or inactive?

Back 10

Active!

Front 11

What is vascularization?

Back 11

vessels where they are not expected to be seen. these are stable and inactive

Front 12

Describe Contact Lens Induced Papillary Conjuctivitits (CLIC)

Back 12

inflammation of the superior tarsal conj with papillae >1 mm; itching and mucous discharge

Front 13

IS CLIC more common in hydrogels or Gas permeable?

Back 13

Hydrogels

Front 14

A too flat lens may "flute up" on a portion of the rim of the contact--this causes ____- of the upper eyelide.

Back 14

GCP (a mechanical irritation)

Front 15

a ________ is a collection of cells in the cornea (may or maynot be related to CTL wear)

Back 15

corneal infiltrates

Front 16

__________ is an inflammatory, mechanical or toxic reaction--you see corneal infiltrates without overlying epi-defects

Back 16

infiltrative keratitis

Front 17

_____ is the general term used to describe infiltrative events not categorized as CLARE, CLPU or MK.

Back 17

infiltrative keratitis

Front 18

If you see sterile infiltrates, you need to rule out _____.

Back 18

thygeson's keratitis

Front 19

CLARE stands for ____.

Back 19

Contact Lens induced Red Eye

Front 20

What are the 3 manifestations of CLARE?

Back 20

1- conj injection (red eye)
2- IK
3- corneal staining

Front 21

What are 4 ways to cause CLARE?

Back 21

1- hypoxia
2- trapped debris
3- preservative adverse reactions
4- low-grade infections

Front 22

What does CLPU mean?

Back 22

Contact lens induced peripheral ulcers

Front 23

What does CLPU normally occur?

Back 23

in the periphery- midperiphery in the anterior stroma (it is a single white-gray lesion)

Front 24

Do CLPU leave a scar?

Back 24

Yes, it looks like a bulls eye (but it MAY fade in time)

Front 25

What med. can you give a CLPU?

Back 25

4GFQ

Front 26

What does SEAL mean?

Back 26

Superior arcuate epithelial lesion

Front 27

What is a SEAL?

Back 27

a mechanical break in the superior corneal epithelium

Front 28

Will a SEAL stain with flurescene?

Back 28

yes

Front 29

What type of lenses are usually seen with SEALs?

Back 29

Silicone hydrogels

Front 30

_______ is an invasion and infection of corneal tissue by micro-organism such as bacteri, fungi, amoeba or viruses

Back 30

microbial keratitis. (this is very BAD)

Front 31

In what case is microbial keratitis most likely to occur?

Back 31

in EW lenses with low Dk values

Front 32

T or F: in microbial keratitis the pathogen is usually located right not top of the ulcer.

Back 32

true

Front 33

What are 4 symptoms of microbial keratitis?

Back 33

1- redness
2- pain
3-photophobia
4- blur

Front 34

What are some signs of microbial keratitis?

Back 34

1- diffuse hyperemia
2-stroma infiltrates with overlying epithelial defects
3- anterior chamber responses
4- hypopyon
5- reduced VA
6- lid edema
7- discharge

Front 35

Should you cycloplege someone with microbial keratitis?

Back 35

yes

Front 36

If you see hypopyon it the problem CLPU or MK?

Back 36

MK

Front 37

If you have severe pain, is the problem CLPU or MK?

Back 37

MK

Front 38

If you have intact staining, is the problem CLPU or MK?

Back 38

CLPU (MK will have an epithelial defect)

Front 39

If the defect is >1mm, is the problem CLPU or MK?

Back 39

MK