PTERYGIUM-TRICHIASIS-DACRYOADENITIS

8/17/2019 PTERYGIUM-TRICHIASIS-DACRYOADENITIS

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PTERYGIUM

T SITI HARILZA ZUBAIDAH


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• TRIANGULAR FIBROVASCULARSUBEPITHELIAL INGROWTH OFDEGENERATIVE BULBAR

CONJUNCTIVA

• DEVELOP IN HOT CLIMATES,

CHRONIC DRYNESS AND UVEXPOSURE

• COMPLICATION : CHRONIC


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• CHRONOLOGICAL :

SMALL, GREY, CORNEAL OPACITY DEVELOPS NEAR

THE NASAL LIMBUS

CONJUNCTIVA OVERGROWS THE OPACITY ANDPROGRESSIVELY ENCROACHES ONTO THE

CORNEA IN A TRIANGULAR FASHION

A DEPOSIT OF IRON (STOCKER LINE) MAY BE SEEN

IN THE CORNEAL EPITHELIUM ANTERIOR TO THEADVANCING HEAD OF PTERYGIUM


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• TREATMENT : INDICATED COSMETIC REASONS

AND VISUAL → SIMPLE EXCISION (HR OF RECURRENCE)

CONJUNCTIVAL AUTOGRAFT

AMNIOTIC MEMBRANE

MITOMYCIN C (MINIMIZE RECURRENCE, MAY COMPLICATED BY LATE SCLERAL NECROSIS)


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• MAY OCCUR AS A RESULT OF SCARRING OF THE

LID MARGIN SECONDARY TO CHRONIC

BLEPHARITIS, HZO AND TRACHOMA

• SIGNS :

POSTERIOR MISDIRECTION OF LASHES ARISING

FROM NORMAL SITES OF ORIGIN

TRAUMA TO THE CORNEAL EPITHELIUM MAY

CAUSE PUNCTATE EPITHELIAL EROSIONS AND

OCULAR IRRITATION MADE WORSE ON

BLINKING

CORNEAL ULCERATION AND PANNUS FORMATION

• TRICHIASIS


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SURGERY FULLTHICKNESS :

WEDGES RESECTION OR ANTERIORLAMELLAR EXCISION → MAY BE

USEFUL FOR A LOCALIZED CROP OFLASHES RESISTANT TO OTHER

METHODS OF TREATMENT


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• LACRIMAL GLAND INVOLVEMENT OCCURS IN

ABOUT &'% OF PX WITH IOID (IDIOPATHIC

ORBITAL INFLAMMATORY DISEASE)

• MORE COMMONLY OCCURS IN ISOLATION,RESOLVES SPONTANEOUSLY → DOESNT

RE#UIRE TREATMENT

• CLINICAL FEATURES :

• ACUTE DISCOMFORT IN THE REGION OF

THE LACRIMAL GLAND

DACRYOADENITIS


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• SWELLING OF THE LATERAL ASPECT OF THE

EYELID → SSHAPED PTOSIS

CHARACTERISTIC

• TENDERNESS OVER THE LACRIMAL GLAND

FOSSA

• INJECTION OF THE PALPEBRA PORTION ON

THE LACRIMAL GLAND AND ADJACENT

CONJUNCTIVA

• LACRIMAL SECRETION MAY BE REDUCED


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• DIFFERENTIAL DIAGNOSE :

• LACRIMAL GLAND INFECTION → CAUSED BY

MUMPS, MONONUCLEOSIS AND LESS COMMONLYBACTERIA

• RUPTURED DERMOID CYST → MAY CAUSED

LOCALIZED INFLAMMATION IN THE REGION ON THE LACRIMAL GLAND

• MALIGNANT LACRIMAL GLAND TUMOUR → MAYCAUSE PAIN BUT THE ONSET IS NOT ALWAYSUSUALLY ACUTE

PTERYGIUM-TRICHIASIS-DACRYOADENITIS

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