Phakomatoses

Question 0

Tuberous sclerosis
A) which chrom
B) inheritence
C) 4 findings

Answer 0

Chrom 9
Ad
1) adenoma sebaceum (malar like rash)
2) shagreen patch (skin finding)
3) ash leaf spot (hypopig macule)
4) retinal astrocytic hamartomas (mulberry lesion)

Kids usually have epilepsy

Question 1

Name nf 1 findings (name 6 starting from skin to eye to bone)

Answer 1

1. Cafe au lait spots
2. Plexiform neurofibroma of lid
3. Lisch nodules
4. Combined hamartoma of rpe
5. Cranial bone defects (absent sphenoid wing w pulsatile exophthalmos)
6. Optic n glioma

Question 2

Vhl
Chrom?
Inher?
5 tumors ass w it

Answer 2

Chrom 3 defect in tumor suppressor gene
Ad
1) retinal cap hemangioma
2) pheo
3) rcc
4) cerebellar hemangioblastoma
5) epididymal tumors

Question 3

Whats the spahgetti crazy retinal vascular tumor?

Answer 3

Wyburn mason

Racemose hemangioma

Question 4

What systemic findings do you worry about w wyburn mason?

Answer 4

Cns avm in the midbrain

Question 5

Retinal cavernous hemangioma what does it look like?

Answer 5

Cluster of grapes

Question 6

Whats organoid nevus syndrome? 3 findings?

Answer 6

1) alopecia
2) epibulbar mass like a dermoid
3) choroidal osteoma

Question 7

Ataxia telangiectasia 
Inher
Other name
Main findings
Systemic risk?

Answer 7

Ar
Louis barr
Conj telangiectasia
Immunodeficiencies due to lack of iga

Question 8

What do the numerals on a gvf mean?

Answer 8

I-V stimulous size
1-4 brightness of stimulous
e filter

Question 9

Whats a scotoma?

Answer 9

Dark spot in vf surrounded by area of seeing

Question 10

Whats a depression on vf?

Answer 10

Inward shift in a portion of an isopter

Question 11

What causes halos at night in post lasik?

Answer 11

Pupil dilates at night
Spherical abberation light goes thru untreated k
Myopic defocus
This happens more in high refractive errors and small ablation zone

Question 12

Whats abbe value?

Answer 12

High abbe value is good
It means less chromatic aberration
Its a property of glass

Question 13

Steps in fitting rgp

Answer 13

Choses bc 0.5 steeper than low k
Switch to minus cyl
Drop cyl
Get ks

Question 14

What do u do if cl is too steep?

Answer 14

Incr bc or decr diameter

Question 15

If someone has induced astig what do u do?

Answer 15

Check topo

Question 16

Can u do duochrome on pt w 20/50?

Answer 16

No has to be better than 20/40

Question 17

What do you do if pt has myopic surprise after ce?

Answer 17

Consider pco and do yag
Ovd stuck behind iol
Iol put in backwards(capsular block syndrome)
Iol shift forward
Iol exchange
Piggyback lens
Refractive surgery

Question 18

How do u fit rgp?

Answer 18

Convert to minus cyl
Drop the cyl
Calc new vertex distance
Fit 0.5 steeper than flat k
Check the lens fits well w floursecin pattern 
Sam fap rule 
This is correct

Question 19

How do u check va if doesnt speak english?

Answer 19

Landolt c

Internet eye charts in theor own language

Question 20

Post lasik pt wants to be glasses independent what do u do?

Answer 20

Consider monovision for their iol choice

Question 21

What is distortion?

Answer 21

Due to curve of high rx lenses the loght curves at the edges

Question 22

Whats the problem w progressives

Answer 22

Can have oblique astigmatism at the edges

Theres a sweet spot

Question 23

Aphakic cl in one eye and glasses in phakic eye ghosting what do you do?

Answer 23

Can try scl ou but may have anisokonia

Give pt - glasses in eye w + cl

Question 24

If pt comes in and topo shows irreg astig what do you do?

Answer 24

Could be forme fruste kcn
Fit w rgp
Could become an ectasia
Follow w serial topo

Question 25

What do halos mean?

Answer 25

Could be very high iop

Question 26

What is ff? Monocular or binocular?

Answer 26

Monocular

Question 27

Whats csm monoc or binocular?

Answer 27

Cs- momocular

M- binocular

Question 28

What type of surprise can u get if so was in eye?

Answer 28

Hyperopic surprise bc so a length may be falsely long so you pock weaker iol

Question 29

What kind of lens to put in if so is staying?

Answer 29

Convex plano w plano side to so

Question 30

What does so do to biomtry?

Answer 30

It falsely lengthens eye

Question 31

Medical rx of ectropipb

Answer 31

Tape

Question 32

Surg options of ectropipb

Answer 32

1) Lateral tarsal strip w fixation to periosteum
2) Wedge excision w primary closure
3) Tarsortaphy

Question 33

What can happen to keratoacanthona?

Answer 33

Can involute

Or can excise

Question 34

What do u do for large >50% defect?

Answer 34

Lid sharing procedure

Highes or cutler beard