Abnormalities Of Eyelid Flashcards
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Inward turning of the eyelid
Entropion of the eyelid
Causes the eyelid skin and eyelash to ruv againat the eyeball, that friction cause discomfort and irritation of the cornea
Entropion of the eyelid
Usually occurs in the lower eyelid
Entropion of the eyelid
Outward turning of the lid margin
Ectropion
Leaves the inner eyelid exposed and prone to irritation
Ectropion
More common in older adults and generally generally affects only the lower eyelid
Ectropion
In severe _______ the entire legth of the eyelid is turned out.
Ectropion
Is an acquired eyelid abnormality in which there is a misdirected growth of eyelashes with normal lid margin position
Trichiasis
This is an ingrown eyelashes
Trichiasis
Occurs when eyelashes incorrectly grow toward the cornea
Trichiasis
Incomplete fusion of fetal maxillary process
Coloboma of the eyelid
Caused by failure of fusion of thr mesodermal lid folds
Coloboma of the eyelid
The most common site of this condition is at the junction of the medial and middle third of the upper eyelid
Coloboma of the eyelids
Vertical folds of the skin over the medial canthi, may cause pseudoesotropia
Epicanthus
A skin fold of the upper eyelid covering the inner corner of the eye
Epicanthus
This condition is often seen as normal finding in very young children and is common in people of Asiatic descent
Epicanthus
An epicanthal fold can be an important diagnostic finding in conditions such as –
Down Syndrome
Distance between the medial canthus of each eye (intercanthal distance) is the same as the length of each palperbral fissure
Telecanthus
Supernumerary row of eyelashes
Distichiasis
An abnormality of a second row of lashes emanating from meibomian glands. Lid margin is in normal position
Distichiasis
A condition of abnormal eyelash growth with misdirection posteriorlt
Trichiasis
A condition of abnormal eyelash growth with misdirection posteriorlt
Trichiasis
Relaxation of the skin of the eyelid caused by the atrophy of the elastic tissue, upper eyelid is commonly involved
Blepharochalsis
Eyelid skin redundancy and loss of elasticity usually as a result of aging
Dermatochalasis
Eyelid skin redundancy and loss of elasticity usually as a result of aging
Dermatochalasis
A type of surgery that repairs droppy eyelids and involves removing excess skin, muscle, fat
Blapharoplasty
A type of surgery that repairs droppy eyelids and involves removing excess skin, muscle, fat
Blapharoplasty
Abnormally low position of one or both upper lids
Blepharoptosis
Abnormal low lying upper eyelis margin with the eye in primary gaze
Blapharoptosis
The most common form that is
present from birth is due to poor
development of the levator palpebrae
superioris muscle.
Blepharoptosis
is a congenital condition
in which the eyelashes are abnormally
long, greater than 12mm in the central
area and 8mm in the peripheral.
Trichomegaly
Various causes include congenital
syndromes, acquired conditions and drugs
Trichomegaly
also called phthiriasis ciliaris, or ciliary phthiriasis
Phthiriasis palpebrarum
is an ectoparasitosis of the eyelashes due to
an infestation with Pthirus pubis (sometimes
written Phthirus pubis), also known as pubic
louse or crab louse.
Phthiriasis palpebrarum
Typically affects children in poor
hygenic conditions
Phthiriasis palpebrarum
avoid having sexual contact or sharing
bedding or clothing with anyone who has an
infestation.
Phthiriasis palpebrarum
is a condition that results in the loss
of eyelashes, and sometimes eyebrows.
Madarosis
The term “madarosis” is derived from the ancient Greek”____”, meaning “bald”. It originally was a
disease of only losing eyelashes but it currently is
the loss of both eyelashes and eyebrows.
madaros
means bald
madaros
The physical stress of rubbing or pulling
at your eyes and eyelashes too hard could cause
eyelashes to fall. Also, if you’re experiencing stress
emotionally, it could cause hair loss.
madaros
is when a person is born with or
develops a patch of white or gray hair while
otherwise maintaining their natural hair color.
Poliosis
Ocular associations to Poliosis
Chronic anterior blepharitis
and Sympathetic ophthalmitis
Systemic associations to Poliosis
Vogt-Koyanagi-Harada
syndrome AND Waardenburg syndrome
occurs when any factor
shortens the anterior lamella of the lid.
Such
factors include congenital malformations, trauma,
burns, scarring skin tumors, allergies, medications,
surgeries such as blepharoplasty, skin diseases, or
involutional changes that result in the loss of skin
elasticity
Cicatricial ectropion
Contracture of skin pulling lid away from
globe
Cicatricial ectropion
is caused by horizontal
laxity of the eyelid, attenuation or disinsertion of
eyelid retractors, and overriding by the preseptal
orbicularis oculi muscle.
Involutional entropion
is a condition that arises following ocular
irritation or inflammation.
Acute spastic entropion
occurs most commonly as a result of
aging.
Entropion
By age, the tendons and muscles that hold
your eyelid taut against your eye stretches out and
your eyelid starts to turn in. Previous surgeries,
burns, trauma, infection, inflammation and birth
defects are other causes of entropion.
entropion
If longstanding may result in corneal
ulceration
entropion
is an ocular condition
involving malpositioning of the eyelid, which can result in ocular pain, conjunctival
epiphora, or photophobia.
Congenital entropion
Inturning of entire lower eyelid and
lashes
Congenital entropion
Very rare - not to be confused with
epiblepharon
Congenital entropion
Absence of lower lid crease
Congenital entropion
When skin is pulled down lid also pulls
from globe, does not resolve spontaneously
Congenital entropion
is a condition in which the
eyelid pretarsal muscle and skin ride
above the eyelid margin to form a horizontal
fold of tissue that causes the cilia to assume a
vertical position.
This condition is typically seen in
children and young adults of Asian descent.
Epiblepharon
Affected patients have an abnormal congenital horizontal fold of skin near the
upper or lower eyelid
Epiblepharon
involuntary muscle
contraction characterized by persistent
or repetitive spasm of the orbicularis
muscle
Blepharospasm
You can’t control this condition. This is called
involuntary blinking or twitching. The
twitching is caused by a muscle spasm
around your eye.
Blepharospasm
