Anterior Segment Lecture 3

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Last updated 11:02 AM on 6/11/26
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96 Terms

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Fat is only in the located in the ___ portion of th eyelid skin

orbital

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Horner's muscle

Deep palpebral fibers that wrap around the lacrimal canaliculi

move tears

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Riolan's muscle

at lid margin around both sides of each meibomian gland openings

maintains lif globe congruity

espress meibum

Gray line

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Gray line

divides lid into aterior and posterior

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Superior Levator Muscle

retract upper eyelids

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1. Ligaments

form sleeve around SPL and changes its direction to superoinferior

superior transverse ligament (Whitenall's)

Intermusclar transver ligament

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2. Levator Aponeurosis

fan like tendinous expansion of the SPL

pierces the orbital septum and attaches to superior tarsal plate

attachment to skin and orbicularis = upper lid crease

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3. Tarsal Muscle of Muller

posterior inferior expasion of the SPL

smooth muscle with sympathetic autonomic innervation

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Inferior Rectus Muscle

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1. Capsulopalpebral Fascia (lower lid aponerousis)

extension of the inferior rectus muscle sheath and inferior suspensory ligaments

retract the lower lid

(like aponerosis)

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2. Inferior tarsal muscle

Extension of inferior rectus muscle sheath inserting into lower palpebral conjunctiva and lower tarsal plate

smooth muscle with sympathetic autonomic innervation

(like muller muscle)

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orbital septum

barrier

separates the anterior and posterior extend of the orbit

continuous with periorbital and periosteum of the orbital rim bones

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Zeis glands

sebaceous glands

coats lash follicles with sebum

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Moll glands

sweat (apocrine) glands

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Meibomian glands

sebaceous glands

embedded in tarsal palte

secrete meibum which forms lipid ayer of tear film

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Accessory lacrimal glands

Sectrtions contribute to aqueous layer of the tear film

Wolfring Glands

Kruse glands (fornix)

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Look at blood supply

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Hordeolum Symptoms

Tender

painful

warm

red

swollen

acute onset

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Hordeolum signs

Visible palpable, well defined subcutaneous nodule

may be one or multiple

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Hordeolum Etiology

inflammation of the sebaceous glands due to bacterial infection

95% due to staph. aureus

Staphylcoccus epidermidis

both gram (+)

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Hordeolum Epidemiology

common

affects every age and demographic

30-50

females>males

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Hordeoulm risk factors

blepharitis

ocular rosacea

meibomian gland dysfunction

immunocompromised states

poor eyelid hygiene (excessive makeup)

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External hordeolum

infection of glands of zeis and moll

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Internal hordeolum

infection of meibomian gland

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Differential of Hordeoulum

Chalazion (painless)

Orbital cellulitis (proptosis, double vision)

preseptal cellulitis (entire periorbital region)

sebaceous cell carcinoma (recurrent chalazion, eyelid thicking, loss of lashes, non acute)

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Hordeolum treatment

warm compress with digital massage 10 min session x4/day

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internal hordeolum treatment

Oral abibiotic

follow up 7-10 days

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External hordeolum treatment

topical antibiotic

or topical antiobiotic steroid combo

follow up 7-10 days

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Hordeolum Antibiotic treatment

Cephalexin (Keflex) 500 mg

take 1 capsule BID by mouth for 7-10 days

Augmentin 500 mg take 1 capsule BID by mouth for 7-10 days

Doxycycline 100 mg take 1 capsule BID by mouth for 7-10 days

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Cephalexin (Keflex)

Bactericidal

Gram (+)

Contra: Warfarin

ADR:

Steven Johnson Syndrome

X-sensitivity with penicillin

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Augementin

Bactericidal

Gram (+) and some (-)

ADR:

Steven Johnsons

Z-sensitivity with Cephalosporin

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Doxycycline

Bacteriostatic

Gram (+)(-)

Contra: children less than 8 and pregnancy

bone rgowth and tooth discolotation

ADR: Photosensitivity

Psuedotumor cerebri

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Topical Antibiotic

Erythromycin 0.5% ophthalmic ointment apply over lesion BID for 2 weeks

Tobradex 0.3-0.1% apply over lesion BID x2 weeks

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Erythromycin

Bacteriostatic

gram (+)

Very safe

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Tobradex (tobramycin/dexamethasone)

bactericidal

Gram + and -

contra: Glaucoma

ADR: Delayed corneal healing

IOP spike

post. subcapsular cataract

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Chalazion Symptoms

painless

bump

few moths

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Chalazion signs

palpable solid bump

mildly red

non tender !!!

not warm

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Chalazion etiology

obstruction of the sebaceous gland with resultant lipogranuloma formation

seconday to hordeolum

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Chalazion epidemiolgy

common

affects every age

30-50

Females=males

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Chalazion risk factors

blepharitis

ocular rosacea

meibomian gland dysfunction

use of Velcade for multiple myeloma

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Chalazion differentials

Hordeolum ( acute, focal pain)

Orbital cellulitis (proptosis, diplopia, pain)

Preseptal (redness of entire lid)

sebaceous cell carinoma (recurrent chalazion, eyelid thickning, loss of lashes)

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Chalazion: Treatment (Conservative)

Warm compress with digital massage 10 min session x4day

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Chalazion: Treatment pharmaceuticals

Doxycycline 20 mg BID Po x 4 weeks FU Few weeks

Tobradex 0.3-0.1% apply over lesion BID x2 weeks FU few weeks

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Chalazion treatment (invasive)

no improvement with conservative mangement or large and chronic

1. intralesional steroid injetion

2. incision and curettage

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Preseptal Cellulitis symptoms

Painful

red

swollen

"i had____"

insect bite

stye

sinus infection

cut to skin

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Preseptal Cellulitis signs

eyelid red

warm ad tender to touch

Possibly swollen shut

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Preseptal Cellulitus etiology

inflammation of the periorbtial tissue anterior to the orbital septum

bacterial infection (S. aureus)

from another adjacent infection such as hordeoulm, sinitis, or injury

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Preseptal Celllulitis epidemiology

more common in youn adults and children

more common than orbital cellulitis

no specific race or gender

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Preseptal Celllulitis Risk factors

hordeolum

dacrocystitis

upper respiratory tract infection/sinitis

trauma

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Preseptal Celllulitis Differentials

Hordeoulm (acute, painful, nodule)

Orbital cellulitis (proptosis, double vision, and pain)

contact dermitis (nontender, itchy, alelrgic reaction)

sebaceous cell carcinoma ( recurrent chalazion, thickineing, loss of lashes)

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Pre-septal Cellulitis: treatment

oral antibiotic

Augementin 875mg take 1 capsule BID by mouth for 7-10days (higher dosing than hordeolum)

Sulfamethoxazole/Trimethoprim (Bactrim) 800 mg/160mg take 1 capsule BID by mouth for 7-10 days

(if alelrgic to penicillin or exposure to MRSA)

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Sulfamethoxazole/Trimethoprim (Bactrim) contraindicaitons

sulfa allergy

pregnancy

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Preseptal Cellulitis follow up

daily

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Preseptal Cellulitis : no improvement or worsening of s+s

admit to hospital for orbtial CT scan and switch to IV antibiotics

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Ocular Rosacea: signs and symptoms

eyelid/facial telangectasia

ttearing

FB senstion

irritation

burning

Flares on and off with

alcohol

spciy foods

caffeine

hot weather

sunlight

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Ocular Rosacea etiology

auto immune mediated chronic inflammatory disorder

blood vessel dilaiton

leakage of inflammatory substances into the skin

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Ocular Rosacea Epidemiology

Northern European ancestoery

2-3x more common in females

20% have ocular rosaces without cutaneous rosacea

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Ocular Rosacea risk factors

associated triggers: alcohol, spicy food , heat, sunlight, caffeine

Possible correlation with Demodex Folliculorum or H pylori

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Ocular Rosacea Slit lamp examination

- Telangiectatic vessels at lid margin

- associated Meibomian gland dysfunction and demodex blepharitis

- Corneal disease (Keratitis, pannus)

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Ocular Rosacea Gross examination

May have rhinophyma

- associated with cutaneous rosacea

- more seen in men

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Ocular Rosacea differetials

Preseptal cellulitis (pain, entire eyelid)

Lupus Erythmatosis ( malar rash, multiorgan dysfunction)

Contact dermititis (nontender, itchy, allergic)

Atopic Dermatitis (scaly, pathcy, and discolration of skin)

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Ocular rosacea treatment

Educate on avoiding triggers

Eyelid Hygiene (treat secondary demadox belph)

Oral Antibiotic

Intense Pulse Therapy (IPL)

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Oral Antibiotic for ocular Rosacea Low Maintenance Dose

Low Maintenance Dose

Doxycycline 20 mg take 1 capsule BID by mouth for 3-4 months

anti inflammatory action

decrease MMP

Anti-angiogenic

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Oral Antibiotic for ocular Rosacea Acute Dose

Doxycycline 100 mg take 1 capsule BID by mouth 3-4 weeks

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Intense Pulsed Light Therapy (IPL)

- non-laser high intensity light

Light absorbed by tissue is converteed to heat destroying telangiectiasia but not surrounding tissues

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Intense Pulsed Light Therapy (IPL) contraindications

darker skin tones at higher risk of complications (Fitzpatrick skin type scale)

Photosensitivizing medications (Doxy) *******

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Allergic Contact Dermatitis signs and symptoms

Eyelids are

puffy

red

ithcy

tearig

FB sensation

Came in contact with ____ a few days ago

Erythema, flaking, crusting rash, edema

ocular surface involvement: conjunctival chemosis

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Allergic contact dermatitis etiology

acute inflammation caused by an immunologic hypersensitivity to an allergic stimulus

Common ingredients

Ophthalmic drops

Airborne and aerosolized ingredients

Plan and animal protein

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Allergic contact dermatitis Epidemiology

higher in females (jewlry, makeup, fragrances)

affects all demographics but may be higher in fairer skin

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Allergic contact dermatitis risk factors

age (infants, elderly)

occupation (exposer to allergens)

history of atropic dematitis (more breaks in skin)

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Allergic contact dermatitis pathophysiology

delayed/cell mediated type 4 hypersensitivity reaction

48-72 hours after exposure

T cells must be sensitized first

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Allergic Contact Dermatitis Differentials

- Herpes zoster ( painful, unilateral)

Preseptal Cellulitis (pain,s welling entire lid)

Ocular Rosacea (telectasia of eyelid margin)

Atopic dermatis (chronic, scaly patches)

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Allergic contact dermatitis Treatment

Identify ad remove inciting agent

cold compresses, several times daily

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Allergic contact dermatitis Treatment IF crusted/weeping lesions

Prophylaxis antiobiotic

Erythromycin 0.5% ung QHS OU along eyelids for 1 week

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Contact dermatitis treatment

FML 0.1 BID 7-10dats Taper to QD for 1-2 weeks

Corticosteroid

OR

Tacrolimus 0.03% -0.1% BID to affected area 7-10 days

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FML contraindicaitons

IOP pressure spike

post. subcapsular cataract

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Tacrolimus contraindications

Macrolide allergy

Children <2

Pregnancy

Immunocompromised

BBW: Cancer

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Atopic Dermatitis signs and symptoms

Acute: red crusting blisters

Chronic: Diffuse dry, sclay, itchy pacthes of skin

Discoloration

Leathery and lichenified

Dennie Morgan Folds and allergic shiners

remission and relapse

"on and off"

" flares up"

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Atopic Dermatitis Etiology

Genetic and environmental factors

Atopic triad: atopic dermatitis, allergic rhinitiis, asthma

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Atopic Dermatitis epidemiology

starts in ifacncy

80% affected before age 6

REmission periods with relpase in adult hood

40% have concurrent atopic keratoconjunctivitis

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Atopic Dermatitis Risk factors

Family history

genetic mutation that predisopes for imapired skin barrier

enviormental exposures

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Atopic Dermatitis Pathophysiology

defect skin battier

over expression of Type 2 Hel[er cells and IgE

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Atopic Dermatitis Differntials

Seborrheic Anterior Belph ( scaling of eyelid margin only)

Psoriasis (well defined patches)

Ocular Rosacea (teliectasia)

Allergic Contact dermititis (acute, purely allergic reaction)

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Atopic dermatitis treatment

Treat ocular complications as needed

consult dermatology for non-ocular AD

consider treating periorbital AD

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Atopic Dermatitis if crusting and weaping lesions

Erythromycin 0.5% ung QHS OU along eyelids for 1 week

FML 0.1 BID 7-10dats Taper to QD for 1-2 weeks

OR

Tacrolimus 0.03% -0.1% BID long term but not to exceed 6 weeks

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Blepharochalasis signs and symptoms

acute phase: painless edema of the upper eyelid margins

Chronic phase: wrinkled redundant, thinned eyelid skin

relapsing and remitting edema

3-4x year

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Blepharochalasis etiology

idiopathic recurrent episodes of painless edema of upper eyelids with and without redness/ithcing

may be part of larger syndrome or disease

related to hormonal changes during puberty

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Blepharochalasis Epidemiology

Rare

Females>males

Onset before 30

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Blepharochalasis Risk factors

hormonal changes

genetic predisoption

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Blepharochalasis pathophysiology

unclear inflammaotry mediated etiology

IgA deposits noted within periorbital tissue with increased elastolysis actovity

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Blepharochalasis Differentials

Dermatochalasis (age related, increased laxity)

Preseptal cellulitys (painful, swelling, redness of entire lid)

Hordeolum (acute, focal, painful

Allergic Contact dermitis ( allergic rxn, ithcy)

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Blepharochalasis treatment: acute phase

FML 0.1% BID OU for 7-10 days

Taper to QD OU for 1-2 weeks

Follow up 2-4 weeks

Repeat when reactivates

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Blepharochalasis treatment: chronic phase

surgical blepharoplasty once quiescent for at least 2 years

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Vitiligo

absence of melanin in skin

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Poliosis

absence of melanin in hair follicles of eyelashes and eyebrows

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Associated conditions

- Vogt-Koyanagi- Hardara Syndrome (VKH)

- Tuberous sclerosis complex

- Waardenburg's syndrome