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AGEING PROCESS IN
THE EYE HABIBAH S. MUHIDDIN
DERMATOCHALASI (BLEPHAROCHALASIS)
CORNEAL ARCUS
SENILE CATARACT
AGE RELATED MACULARDEGENERATION(AMD)
LEADING CAUSE OF IRREVERSIBLE BLINDNESS IN OLD PEOPLE
CLASSIFICATION :
DRY TYPE AND WET TYPE
DRY TYPE : DRUSENWET TYPE : - EXUDATIVE RPE - DETACHMENT - NEOVASCULAR STAGE
INTERNATIONAN CLASSIFICATION BASED ON CLINICAL MANIFESTATION: * EARLY AMD : DRUSEN * LATE AMD : GEOGRAPHIC ATROPHY NEOVASCULARSTAGE
DRUSEN
LATE AMD WITH EXUDATE AND NEOVACULARISATION
RETINAL PEGMENT EPITHELIUMSPECIALIZED FUNCTION TO SUSTAIN THE PHOTORECEPTOR CELLS AND OUTER SEGMENT RENEWAL
TO DISCHARGE CYTOPLASMIC MATERIAL TO THE INNER PORTION OF BRUCHS MEMBRANE TO ACHIEVE CYTOPLASMIC RENEWAL
RPE CHANGES WITH AGE ARE CHARACTERIZED BY THE ACCUMULATION RESIDUAL BODIES (CONTAIN LIPOFUSCIN) IN RPE CYTOPLASMIC
BRUCHS MEMBRANE
LOCALISED BETWEEN RPE AND CHORIOCAPILLARIS (CC)
PROVIDES A SEMIPERMEABLE FILTRATIONBARRIER THROUGH WHICH MAJOR METABOLIT EXCHANGE TAKE PLACE CC --- NUTRIENT (THROUGH MB, RPE) -----PHOTORECEPTOR PR CELLULAR BREAKDOWN PRODUCT (RPE, MB) --CC
DRUSEN
GEOGRAPHICATROPHY
NEOVASCULAR DEVELOPMENT
TREATMENT
*NO T/ FOR DRY OR EARLY AMD
*LASER PHOTOCOACULATION PDT (PHOTODYNAMIC TH/) TTT TRANSPUPILLAY THERMO TH/)
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