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Important Term in Disease of eyelid�For�Ophthalmic Officer DHS Exam

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Ptosis

Abnormal drooping of upper eyelid is called ptosis.
Upper lid cover about upper one-sixth of cornea (2mm)
In ptosis its cover more than 2mm of cornea.

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Distichiasis

Congenital distichiasis is rare anomaly
In which an extra row of eyelashes is called as distichiasis.
It ocuupies the position of meibomain gland.
These cilia are usually directed backward and due its rubbing the cornea.

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Madarosis

Absent f cilia is called as madarisis.
It may be seen in patients with chronic blepritis, Leprosy and myxoedema.

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Poliosis

Greying of cilia is called as poliosis.
Its seen in old age.

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Cryptophthalmous

It is very rare anomaly.
In which eyelid fail to developed is called as Crytophthalmous.
In which skin passes continuously from eyebrow to cheek and hiding eyeball.

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Blephritis

It is chronic inflammation of the lid margin is called as blephritis.
It is extremely common disease of eyelid.

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Microblepharon

In this condition eyelid are developed abnormally small.
It is usually associated with microphthalmous and anophthalmous.

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Ablepharon

In this condition eyelid are developed abnormally very small or virtually absent .

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External hordeolum

It is an acute suppurative inflammation of gland of Zeis or Moll.
It is also called as stye.

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Chalazion

It is chronic non infective granulomatous inflammation of the meibomian gland.
It is also called as Tarsal cyst and Meibomian cyst.

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Internal Hordeolum

It is suppurative inflamation of the meibomian gland.
It associated with blockage of duct of meibomian gland.

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Molluscum Contagiosum

It is viral infection of lids.
It seen more in children.
It is caused by large poxvirus.
It is multiple, pale, wax, swelling over skin near lid margin.

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Trichiasis

It is inward turning of misdirected one or two cilia with normal position of lid margin.
The misdirected cilia rub to cornea.

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Pseudotrichiasis

It is inward turning of misdirected one or two cilia along with lid margin.

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Ectropion

Outward turning margin is called ectropin.

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Symblepharon

In this condition lids become adherent with the eyeball.
In which adhesion between the palpebral and bulbar conjunctiva.

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Ankyloblepharon

Horizontally narrow palpebral fissure - Adhesion between margin of upper and lower lid.
It may occur as a congenital anomalies or chemical burn, thermal burn, ulcer and traumatic wound.
Palpebral fissure horizontal – 28-30 mm
Palpebral fissure vertical – 8-10 mm

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Blepharophimosis

All around narrow palpebral fissure
In this condition the palpebral fissure is decreased.

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Logophthalmous

This condition is characterized by inability to voluntarily close the eyelid.

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Blepharospasm

It refers to the involuntary, sustained and forceful closer of eyelid.