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01/20/2013

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Term
Epicanthal Folds
Definition
Vertical skin folds in the medial canthal area
Term
Epicanthal Folds are Associated with?
Definition
1. Telecanthus
2. Downs Syndrome
3. Fetal Alcohol Syndrome
4. Cri du Chat Syndrome
5. Klinefelter Syndrome
6. Turner Syndrome
7. Ehlers-Danlos Syndrome
Term
Epicanthus Inversus
Definition
A medial skin fold sweeping upward from below
Term
What are the Epicanthal Fold Types?
Definition
1. Epicanthus Tarsalis - most prominent superiorly
2. Epicanthus Inversus - most prominent inferiorly
3. Epicanthus Palpebralis - equally distributed between superior and inferior
4. Superciliaris - arises above the brow and extends downwards to the lateral aspect of the nose
Term
Telecanthus
Definition
An abnormally increased distance between the medial canthi of the eyelids
Frequently found in FAS
Associated with Blepharophimosis
Term
Description of Primary Telecanthus
Definition
The inner canthi are farther apart, although the outer canthi are normally spaced.
Term
True Ocular Hypertelorism
Definition
Both inner and outer canthi are abnormally far apart
Term
Waardenburg Syndrome
Definition
Melanosome Problem
Results in depigmentation of iris
4 Types:
Type 1 - telecanthus present
Type 2 - no telecanthus
Type 3 & 4 - rare
Term
BPES
Definition
Blepharophimosis, Ptosis, Epicanthis Inversus Syndrome
Type 1 associated with ovarian failure
Term
Epiblepharon
Definition
Horizontal fold of skin stretches across the border of the eyelid; may press the eyelashes inward
Term
Congenital Entropion
Definition
Inturning of lower or upper lid
Term
Upper Lid Entropion is usually secondary to..
Definition
Micropthalmos
Term
Lower Lid Entropion is caused by...
Definition
Improper development of the lower lid retractors
Term
Eyelid Coloboma
Definition
Notch or full-thickness defect of the eyelid
Can occur congenitally or from trauma
Term
Eyelid Colobomas are associated with...
Definition
1. Goldenhar Syndrome (superior)
2. Treacher Collins Syndrome (inferior)
3. Cryptophthalmos
4. Fraser Syndrome
Term
Microblepharon
Definition
(Small Eyelids)
Rare congenital anomaly manifested by a vertical shortening of the eyelids
Causes nocturnal lagophthalmos, corneal exposure, and cosmetic deformity
Term
Ablepharon
Definition
No eyelids
Term
Microphthalmos
Definition
(Small Eye)
Extremely small and malformed globe
Can result from a problem in development of the globe at any stage of growth of the optic vesicle
Term
Simple Microphthalmos
Definition
No association with any other major ocular manifestations
Term
Complex Microphthalmos
Definition
Associated with coloboma, usually of the iris
Term
Microphthalmos With Cyst
Definition
Oribital cyst forms secondary to failure of the optic fissure to close
Associated mainly with clefting syndromes
Term
Posterior Microphthalmos
Definition
Reduced total axial length with normal corneal diameter
Term
Anophthalmos
Definition
No eye
Term
Simple Anophthalmos
Definition
Complete failure of budding of optic vesicle
Associated absence of extraocular muscles and microblepharon
Term
Anophthalmos With Cyst
Definition
AKA Congenital cystic eyeball
Globe is replaced by a cyst
Term
Complete Cryptophthalmos
Definition
Most common type of cryptophthalmos
The eyelids do not form and the eyelid skin grows continuously from the forehead to the cheek covering the underlying globe
Term
Incomplete Cryptophthalmos
Definition
Presents with facial skin fusing to the medial aspect of the globe with no eyelid structures in that area
Term
Symblepharon Cryptophthalmos
Definition
Presents with fusion of the upper eyelid skin to the superior portion of the globe
Term
Syndromes associated with cryptophthalmos are...
Definition
1. Fraser's Syndrome
2. Cryptophthalmos-syndactyly Syndrome
Term
Pseudocryptophthaloms
Definition
Total Ankyloblepharon
Eyelids form but fail to separate
Excellent visual potential following surgery
Term
Euryblepharon
Definition
-Congenital eyelid anomaly characterized by horizontal enlargement of the palpebral fissure
-Eyelid is shortened vertically compared with the horizontal dimension, with associated lateral canthal malposition and lateral ectropion
-May be an isolated finding or associated with ocular anomalies like lateral displacement of the proximal lacrimal drainage system, a double row of meibomian glad orifices, telecanthus, and strabismus
Term
Congenital Upper Lid Eversion
Definition
Most common in African-Americans and Downs syndrome children
Tend to grow out of it
Management: prevent desiccation of the exposed conjunctiva and allow spontaneous inversion of the lid
Term
Crouzon Syndrome
Definition
-Genetic disorder known as a branchial arch syndrome.
-Specifically affects the first branchial (or pharyngeal) arch, which is the precursor of the maxilla and mandible
-Infant's skull and facial bones, while in development, fuse early or are unable to expand
- Specifically premature fusion of coronal and sagittal sutures
Term
Usual Presentation of Crouzon
Definition
1. Brachycephaly - results in the appearance of a short and broad head
2. Exophthalmos - due to shallow eye sockets after early fusion of surrounding bones
3. Hypertelorism - orbit will be wider
4. Strabismus - exotrope
Term
Ocular Associations with Crouzon
Definition
1. Aniridia
2. Blue Sclera
3. Cataract
4. Ectopia Lentis
5. Glaucoma
6. Coloboma
7. Megalocornea
8. Optic nerve hypoplasia - 'double ring sign'
9. V-pattern exotropia
10. papilledema from increased intracranial pressure
Term
Apert Syndrome
Definition
Very similar to Crouzons but with Parrot-Beak and fusion of hands and feet
Also high arched palate, cleft palate, anomalies of heart, lung, and kidney, acneiform skin eruptions, and mental handicap
Term
Ocular Associations with Apert Syndrome
Definition
1. Keratoconus
2. Ectopia lentis
3. Congenital glaucoma
4. Corneal exposure
5. Optic atrophy - from glaucoma
6. Papilledema
Term
Pfeiffer Syndrome
Definition
Condition resulting from premature fusion of the sutures of the skull and deformity of the skull
Term
Ocular Signs of Pfeiffer Syndrome
Definition
1. Proptosis secondary to shallow orbits
2. Hypertelorism
3. Strabismus
4. Optic Atrophy
5. Papilledema
Term
Treacher Collins Syndrome
Definition
A mandibulofacial dystosis
Result of the zygoma failing to fuse with the maxilla, frontal, and temporal bones
Term
Treacher Collins Syndrome Characterisitics
Definition
1. Downward slanting eyes
2. Small lower jaw
3. Malformed or missing ears
4. Inferior lid colobomas
5. Cataracts
6. Microphthalmos
Term
Goldenhar Syndrome
Definition
Congenital defect characterized by incomplete development of the ear, nose, soft palate, lip, and mandible.
Thought to be from a vascular accident in the fetus
Term
Characteristic of Goldenhar Syndrome
Definition
1. Preauricular skin tags
2. Limbal dermoids
3. Lid colobomas
Term
Ocular Signs of Goldenhar Syndrome
Definition
1. Epibulbar dermoid
2. Upper-lid notch or coloboma
3. Microphthalmos
4. Disc coloboma
5. Strabismus
Term
Microcornea
Definition
Adult cornea of <10mm
Term
Microcorneas may be associated with..
Definition
1. Microphthalmos
2. Coloboma - iris, retina, or choroid
3. Shallow AC
4. Glaucoma
5. Congenital Cataract
6. Leukoma
7. Cornea Plana
8. Reiger Anomaly
9. Microphakia
10. Optic nerve hypoplasia
Term
Megalocornea
Definition
- Bilateral corneal enlargement with a diameter of >12mm at birth and >13mm after 2 years of age
- Corneal thickness normal and stroma clear
- Limbus sharply demarcated
- Keratometry usually normal but may be steeper than normal
- Distinct from buphthalmos which comprises an elevated intraocular pressure and an enlarged globe as well as an enlarged cornea
Term
Neuhauser Syndrome
Definition
Megalocornea-Mental Retardation Syndrome
Term
Anterior Megalophthalmos
Definition
Megalocorna with enlarged lens and a ciliary body band wider than the trabecular meshwork and scleral spur on gonioscopy.
Term
Anterior Megalophthalmos can lead to..
Definition
1. Pigment dispersion
2. Lens subluxation
3. Ectopia lentis
4. Glaucoma
Term
Sclerocornea
Definition
Scleralization of the cornea in which the peripheral cornea and sometimes the entire cornea is opacified by thick collagen bundles and vascularization without antecedent inflammation
Term
Cornea Plana
Definition
Abnormally flat cornea ranging between 30-35D
Most common ocular association of sclerocornea
BIlateral
Term
Keratolenticular Dysgenesis
Definition
Lens vesicle separates but then fails to form appropriately
Disruption of iris and lens behind sclerocornea
Term
Congenital Anterior Staphyloma
Definition
Opaque cornea protrudes the eyelids
Unilateral
Due to inrauterine keratitis
Poor visual prognosis
Enucleation likely
CAS has cornea lined posteriorly with uveal tissue
Term
Keratectasia
Definition
Can occur as early as 1 week after LASIK or they can be delated up to several years after the initial procedure.
Term
Posterior Keratoconus
Definition
When posterior corneal surface has increased curvature and a normal anterior corneal surface
Term
Generalized Posterior Keratoconus
Definition
Entire posterior K surface has increased curvature
(Keratoconus posticus totalis)
Term
Circumscribed Posterior Keratoconus
Definition
Localized craterlike lesion in central posterior corneal surface. More common than generalized posterior keratoconus.
Term
What can occur with Posterior Keratoconus?
Definition
1. Corneal Haze
2. Endothelial Pigment
3. Guttata
Term
What are some associated ocular abnormalities with Posterior Keratoconus?
Definition
1. Corneal nebulae
2. Endothelial precipitates
3. Anterior lenticonus
4. Aniridia
5. Iris atrophy
6. Ectropion uvea
7. Mesodermal tissue in angle
8. Choroidal or retinal sclerosis
Term
Anterior Lenticonus
Definition
Anterior conical protrusion of the central lens surface (up to 3-4mm) caused by the thinning of affected anterior capsule.
- Fragile basement membrane.
Term
90% of people with anterior lenticonus also have __________.
Definition
Alport's syndrome
Term
Ocular findings with Alport's Syndrome
Definition
1. Spherophakia
2. Anterior polar and posterior cortical cataract
3. Fundus lesions such as drusen, retinal flecks and retinal neovascularization
4. Dot and fleck retinopathy
Term
Systemic findings with Alport Syndrome
Definition
1. Hematuria
2. Sensorineural deafness
3. Hearing loss by late childhood
4. Hearing loss always associated with renal failure, but hearing loss happens first
Term
Posterior Lenticonus
Definition
- Unilateral usually
- No systemic abnormalities
Term
Lentiglobus
Definition
1. very rare
2. unilateral usually
3. associated with posterior polar lens opacity
Term
Microspherophakia
Definition
Crystalline lens is small and spherical with increased antero-posterior thickness.
Term
Microspherophakia is associated with what diseases?
Definition
1. Marfan's
2. Weill-Marchesani
3. Hyperlysinemia
4. Congenital rubella
Term
The ocular associations with microspherophakia are what?
Definition
1. Glaucoma
2. Familial ectopia lentis et pupillae
3. Peter's anomaly
4. Lenticular myopia
Term
Weil-Marchesani
Definition
-Skeletal malformations
-Short stature
-Brachycephaly
-Limited joint mobility
-Ocular abnormalities
- ectopia lentis
- microspherophakia
- lenticular myopia
Term
Microphakia
Definition
Lens has a smaller than normal diameter
Term
Lowe's Syndrome
Definition
Lens is small and disc-like
Term
What is the diagnostic triad for Lowe's Syndrome?
Definition
1. congenital cataracts
2. neonatal or infantile hypotonia with subsequent mental impairment
3. renal tubular dysfunction
Term
50-60% of boys with Lowe's have what?
Definition
Glaucoma, with or without buphthalmos
Usually bilateral glaucoma diagnosed typically in the first year of life but may present at any age
Term
Lens Coloboma
Definition
-Segmental agenesis rather than true coloboma
-focal absence of zonular support with inferior flattening secondary to ciliary body coloboma
- coloboma may be caused by cysts, and/or tumors of the ciliary body
Term
Posterior Embryotoxin
Definition
-Thickened anteriorly displaced Schwalbe's Line
-Present with no associated ocular abnormalities in 10% of eyes
Term
Posterior Embryotoxin is associated with what?
Definition
1. Axenfield-Rieger Syndrome
2. Alagille's Syndrome
Term
Axenfeld's Anomaly
Definition
Posterior embryotoxin coupled with peripheral iris processes extending to or beyond prominent Schwalbe's line
Term
Axenfeld's Syndrome
Definition
when the anomaly is present with associated glaucoma
Term
Alagille's Syndrome
Definition
-Axenfeld's anomaly with pigmentary retinopathy
-Neonatal jaundice in 70% as hepatic disease is a key feature
- Most frequent ophthalmic finding is posterior embryotoxin
Term
Reiger's Anomaly
Definition
Triad of Peripheral Angle Anomalies
1. Axenfeld's Anomaly
2. Iris Atrophy/Hypoplasia
3. Correctopia
Term
Rieger's Syndrome
Definition
Reserved for patients with Reiger's Anomally and associated dental, facial, cranial, and skeletal abnormalities; also mental retardation
Term
Peter's Anomaly
Definition
-Collection of developmental abnormalities involving central anterior segment.
- Central corneal scar with absent or defective posterior stroma, descemet's, and endothelium
Term
Type 1 Peters Anomaly
Definition
Lens may or may not be involved.
Central iris will connect to posterior edges of the area of leukoma
Term
Type 2 Peter's Anomaly
Definition
Lens Involvement:
1. Cataracts
2. Abnormal lens position
3. lens adherence to the abnormal posterior cornea
Term
In cases with Peter's Anomaly where anterior segment is not visible due to corneal scarring, you must do what?
Definition
B-Scan
Term
Treatment for Peter's Anomaly
Definition
1. Preventing amblyopia
2. Controlling glaucoma
3. May include penetrating keratoplasty (PK) and or cataract extraction
Term
Aniridia
Definition
-Congenital absence of iris
-Gonioscopically, iris stump present
Term
Patients with aniridia may complain of what?
Definition
1. Photophobia
2. decreased VA's
Term
Patient's complaints due to aniridia are due to what?
Definition
- Lens abnormalities
- Foveal or optic nerve hypoplasia
- Corneal disruption
- Amblyopia
- Nystagmus
- Glaucoma
Term
Patients with aniridia may complain of corneal surface disease:
Definition
- Superficial haze or opacification with peripheral pannus
- Irregular epithelium - whorl pattern and staining
- Stromal scarring
Term
Sporadic occurrence of aniridia (AN2) may be associated with what?
Definition
Wilm's tumor (30% or aniridia patients)
Term
What is a WAGR complex?
Definition
Wilm's Tumor
Aniridia
Genitourinary malformations
Retardation
Term
Miller's Syndrome
Definition
Aniridia and Wilm's tumor
Term
Aniridia AN3 is associated with?
Definition
Gillespie's Syndrome
- Mental retardation
- Cerebellar ataxia
Term
Mittendorf Dot
Definition
-Embryologic remnant of the hyaloid artery as it joins the tunica vasculosa
-Represents the remains of the anterior end of the hyaloid artery
Term
Mittendorf Dot may be associated with what?
Definition
1. Posterior Lenticonus
2. Lentiglobus
3. Microspherophakia
Term
Persistent Pupillary Membrane
Definition
Mesodermal remnants of the tunica vasculosa lentis.
More common in dark eyes
Term
Type 1 Persistent Pupillary Membrane
Definition
Has attachments only to the iris
Term
Type 2 Persistent Pupillary Membrane
Definition
Has irido-lenticular adhesions
Term
Ectropion
Definition
Eversion of the eyelid margin
Term
Involutional Ectropion
Definition
Due to lid laxity and sagging of lower lid
Most common cause of ectropion in adults
Term
Cicatricial Ectropion
Definition
Mainly due to burns, trauma, or chronic inflammation
Term
Congenital Ectropion
Definition
Secondary to vertical shortening of skin
Term
Inflammatory Ectropion
Definition
Atopic dermatitis, zoster, rosacea
Term
Mechanical Ectropion
Definition
Secondary to edema, lid tumors
Term
Paralytic Ectropion
Definition
Usually after CN VII Palsy
Bell's Palsy
Term
Entropion
Definition
Malposition resulting in inversion of the eyelid margin
Term
Hordeolum
Definition
- An acute infection of an eyelid gland
- cellulitis of the surrounding soft tissues may develop
Term
Chalazion
Definition
A chronic, sterile, granulomatous inflammatory lesion caused by retained sebaceous secretion leaking from the meibomian glands or other sebaceous glands in to adjacent stroma
Term
Recurrent chalazions in elderly are linked to what??
Definition
Sebaceous Carcinoma!
Squamous Cell Carcinoma
Term
Recurrent chalazions in children can be from what?
Definition
Hyperimmunoglobulinemia E
- Hyper-IgE Syndrome
- Job Syndrome
Term
Epidermoid Cyst
Definition
-Result from the proliferation of epidermal cells within a circumscribed space of the dermis
-Appear as firm, round, mobile, flesh colored to yellow or white subcutaneous nodules of variable size
Term
Cyst of Zeiss
Definition
-Sebaceous cyst
-Blocked lash follicle
-Contains keratin and degenerated epithelial cells, granules of fat, and cholesterin in a connective tissue sac
Term
Cyst of Moll
Definition
Abnormal proliferation of aprocrine secretory gland
Term
Apocrine Hidrocystoma
Definition
-Benign, cystic proliferations of the apocrine sweat glands
-Often larger and less likely to be periorbital
Term
Eccrine Hidrocystoma
Definition
Rare, benign, cystic lesions with a lining that resembles that of the eccrine sweat gland and may be solitary or multiple
Term
Syringoma
Definition
-Cellular proliferation of intraepidermal duct eccrine sweat gland epithelium
-Considered a benign neoplasm
-Usually first appear at pubery
Term
Milia
Definition
Caused by occlusion of pilosebaceous units resulting in retention of keratin (dead skin cells) and represent tiny epidermal cysts
Term
Comedones
Definition
AKA Blackheads if open, Whiteheads if closed
Occur in patients with acne vulgaris
Consist of a plug of keratin and sebum within the dilated orifice of a hair follicle or sebaceous follicle
Term
Squamous Papilloma
Definition
-Benign hyperplasia of the squamous epithelium
-More common in older folks
-Have central vascular core
-Hyperkeratotic
Term
What are some differentials for squamous papilloma?
Definition
1. viral wart
2. seborrhoeic keratosis
3. intradermal nevus
4. carcinoma
Term
Viral Papilloma (Verruca Vulgaris)
Definition
Associated with HPV (6,11,16)
May be spread by direct contact or by excision
Term
Seborrheic Keratosis
Definition
AKA Basal Cell Papilloma or Senile Verruca
-Has "stuck on" appearance
-Looks like a raisin
Term
What are some differentials for seborrheic keratosis?
Definition
1.Pigmented basal cell carcinoma
2.Nevus
3.Melanoma
Term
What is sign of Lesser-Trelat?
Definition
The association of multiple eruptive seborrheic keratoses with internal malignancy
Term
Actinic Keratosis
Definition
AKA Solar or senile keratosis
*Most common precancerous skin lesion
-Chronic skin exposure
-25% develop squamous cell carcinoma
-Keratotic growths surround errythema
Term
Keratoacanthoma
Definition
AKA Molluscum sebaceum
-Ulcerated centrally
-Keratin filled crater
-Pink, rapid growing, hyperkeratotic lesion
-Becomes static for a few months
-Begins spontaneous involution
Term
Ferguson-Smith Syndrome
Definition
A multiple lesion, autosomal dominant type of keratoacanthoma
Term
What are some differential diagnoses for Keratoacanthoma?
Definition
1. squamous cell carcinoma
2. basal cell carcinoma
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