Exposure keratopathy

exposure keratopathy

1. EXPOSURE KERATOPATHY M.GOPIKA

2. Normally cornea is covered by eyelids during sleep and during awake it is kept moist by the blinking movements . When the eyes are covered insufficiently by the eyelids , there is a loss of protective mechanism ( keratitis lagophthalmos ) then there develops ‘ exposure keratopathy ‘

3. CAUSES: factors that produce lagophthalmos Exposure proptosis Bells palsy Ectropion Symblepharon Deep coma Physiological lagophthalmos

4. PATHOGENESIS : Due to exposure Corneal epithelium dries up Dessication (epithelium casts off) Invasion by infective orgsnisms

5. CLINICAL FEATURES : SYMPTOMS : Ocular irritation burning foreign body sensation redness symptoms of causative agent

6. D SIGNS : Drying of cornea : due to inadequate blinking Punctate epithelial defects : develops in the lower third in the region of palpebral fissure Corneal ulceration : due to necrosis and bacterial superinfection , they may even perforate

7. TREATMENT : PROPHYLAXIS : Treatment of the underlying cause artificial tears instillation of ointment soft bandage contact lens TREATMENT: TARSORRHAPHY by suturing the lids together

8. THANK YOU