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RETINOPATHY
DIABETIC
Dhian, Putri, Ulfa, Aan, Diah, Hanri, Agri, Rini, Nadira,
Sasminto,Hani
Hyperglycemia
Glucose auto oxidation Sorbitol pathwayAGE formation
Oxidative Sress
Antioxidants
Lipid peroxidation Leukocyte adhesion Foam cell formation TNF a
Endothelial dysfunction NO Endothelin Prostacyclin TXA2
HypercoagulabilityFibrinolysis Coagulability Platelet reactivity
Vascular complications
Retinopathy Nephropathy Neuropathy
Good Fair Poor
Fasting blood glucose (mg/dl) 80-109 110-125 ≥126
2hpp blood glucose (mg/dl 80-144 145-179 ≥180
A1C (%) <6.5 6.5-8 >8
Total- cholesterol (mg/dl) <200 200-239 ≥240
LDL-cholesterol (mg/dl) <100 100-129 >130
HDL-cholesterol (mg/dl) >45
Triglyceride (mg/dl) <150 150-199 ≥200
Body mass index (kg/m2) 18.5-22.9 23-25 >25
Blood pressure (mmHg) <130/80 130-140/80-90 >140/90
Perkeni, 2009
KOMPLIKASI DIABETES MELLITUS
• Akut :
- Hipoglikemia
- Koma Asidosis Diabetika
- Hiperosmoler Non Ketotik
- Koma Laktat Asidosis
• Kronik :
- Mikroangiopati :
- Nefropati D M
- Retinopati DM
- Kardiomiopati DM
- Neuropati DM
- Makroangiopati :
- PJK
- CVA
- Ulkus/ ganggren
- Neuropati DM
- Rentan Infeksi :
- TB Pulmo, dll.
MIKROANGIOPATI OKULER
KELAINAN RETINA PROGRESIF AKIBAT GANGGUAN MIKROVASKULER YANG DISEBABKAN HIPERGLIKEMIA KRONIK
PENYEBAB UTAMA KEBUTAAN PADA USIA PRODUKTIF DI NEGARA BERKEMBANG
Penderita DM 25x lebih mudah terkena kebutaan(KOMNAS Diabetes Amerika)
90% PENDERITA DIABETES MENGALAMI RETINOPATI SETELAH 20 TAHUN
PREVALENSI RETINOPATI DIABETIKA – 30% PREVALENSI KEBUTAAN AKIBAT RETINOPATI – 5%
(usia 20-65 th) RD pada DM tipe 1 40% RD pada DM tipe 2 20% Pasien yg di dx DM pada usia <30 th insiden RD
setelah 10 th 50% Pasien yg di dx DM pada usia >30 th 90%
Lang, Ophthalmology, 2nd. Ed.2006
DIABETES MELITUS MENYEBABKAN KELAINAN : KERATOKONJUNGTIVITIS SICCA, XANTHELASMA, MYCOTIC ORBITAL INFECTIONS, PERUBAHAN REFRAKSI SEMENTARA, KATARAK, GLAUKOMA, NEUROPATI OPTIK, KELUMPUHAN OCULOMOTOR
Teori Enzim katalisis aldose reduktase .
Enzim ini akan mengkatalisa perubahan glukosa menjadisorbitol . Bila kadar glukosa intraselular meningkat , halini akan meningkatkan pula kadar sorbitol intraselular,yang kemudian akan menghambat sintesis mio-inositolyang terdapat pada glomerular dan jaringan saraf .Penurunan kadar mio-inositol ini akan menurunkanmetabolisme fosfo-inositidin, yang kemudian akanmenurunkan aktivitas dari Na-K-ATPase danmemperburuk kerusakan mikrovaskular .
Vasoproliferative Factors Currently intense interest exists in vasoproliferative
factors released by the retina itself, retinal vessels, and the retinal pigment epithelium, which are felt to induce neovascularization. Vascular endothelial growth factor (VEGF), which inhibits the growth of the retinal endothelial cells in vitro, has been implicated in diabetic retinopathy. Considerable evidence suggests that VEGF has a direct role in the proliferative retinal vascular abnormalities that are found in diabetes. Animal models have demonstrated that VEGF expression correlates with the development and regression of neovascularization.[13]
The concentration of VEGF in aqueous and vitreous directly correlates with the severity of retinopathy.[14]
Angiogenesis is a complex process; many other growth factors and cytokines have been implicated in the development of diabetic retinopathy.
Platelets and Blood Viscosity
Diabetes is associated with abnormalities of platelet function. It has been postulated that platelet abnormalities or alterations in blood viscosity in diabetics may contribute to diabetic retinopathy by causing focal capillary occlusion and focal areas of ischemia in the retina which, in turn, contribute to the development of diabetic retinopathy.[15]
Duration of DM
Control of DM. Will not prevent but delays
Hypertension
Renal Disease
Pregnancy
Obesity, hyperlipidemia, smoking, anemia
Background /Non Proliferative
Diabetic maculopathy
Pre-proliferative
Proliferative
End-stage diabetic eye disease
Microaneurism
ExudateBlot haemorrhage
Hard exudate
Haemorrhage
Vascular tortuosity Microaneurism
CWS
NVD
Pre-retinal haemorrhage
Laser burn scars
NVE
Preretinal fibrosis and tractional retinal detachment
Rubeosis iridis
PHTHISISShrunken, soft eye withopaque vascularisedcornea and no visualpotential
ASIMPTOMATIK UNTUK JANGKA LAMA
STADIUM LANJUT DG EDEMA MAKULA/ VITREOUS HEMORRHAGE – VISUS TURUN MENDADAK
PEM. FUNDUS DG PUPIL DIDILATASI –OFTALMOSKOPI, FOTO FUNDUS, FFA
VASCULAR RETINAL DISEASE
Radiation retinopathy
Hypertensive retinopathy
Retinal venous obstruction (central retinal vein occlusion (CRVO), branch retinal vein occlusion (BRVO))
The ocular ischemic Syndrome
Anemia
Leukemia
Coats’ disease
Idiopathic juxtafoveal retinal telangiectasia
Sickle cell retinopathy
LASER: Light Amplification by the Stimulated Emission of Radiation Focal
Grid
Panretinal photocoagulation
mengendalikan faktor risiko, yaitu kadar gula, kadarlipid, dan tekanan darah yang abnormal. Pengendalianatas ketiga faktor ini terbukti mampu menurunkanrisiko dan memperlambat progresivitas retinopati DM.(Garg S, Davis RM. Diabetic retinopathy screening update. Clinical Diabetes. 2009;27(4):140-5)
Target optimal yang harus dicapai adalah kadar HbA1c<7%, kadar low-density lipoprotein (LDL) <100 mg/dL,kadar high-density lipoprotein >50 mg/dL, kadartrigliserida <150 mg/dL dan tekanan darah <130/80mmHg. (American Diabetes Association. Standards of medical care in diabetes - 2010.
Diabetes Care. 2010;33(Suppl1):S11-61.)
▪ Microaneurysm
▪ Retinal hemorrhages
▪ Retinal lipid exudates
▪ Cotton-wool spots
▪ Capillary nonperfusion
▪ Macular edema
▪ Neovascularization.
▪ Vitreous hemorrhage
▪ Retinal detachment
▪ Neovascular glaucoma
▪ Premature cataract
▪ Cranial nerve palsies
No retinopathy or BDR with normal vision See yearly, or sooner if vision deteriorates
Refer to ophthalmologist BDR with macular changes
BDR with decrease in vision
Pre-proliferative retinopathy
Proliferative retinopathy
KONTROL GD – DELAY RETINOPATHY
RUBEOSIS IRIDIS - IRREVERSIBLE
RETINOPATI YANG TERJADI PADA PENDERITA HIPERTENSI
VASOKONTRIKSI FOKAL/ LUAS PD ARTERIOLE
CROSSING PHENOMEN
COPPER WIRE & SILVER WIRE
PERDARAHAN
EKSUDAT: CWS, STAR FIGURE (LANJUT)
GRADE 0 : NORMAL
GRADE 1 : PENYEMPITAN ARTERI MUDAH DILIHAT
GRADE 2 : PENYEMPITAN ARTERI NYATA, IRREGULARITAS SETEMPAT
GRADE 3 : GRADE 2 + PERDARAHAN RETINA DAN ATAU EKSUDAT
GRADE 4 : GRADE 3 + PAPIL EDEM
GRADE 0 NORMAL
GRADE 1PERUBAHAN REFLEK DINDING PEMBULUH ARTERI YANG MUDAH DILIHAT
GRADE 2PENINGKATAN REFLEK PEMBULUH ARTERI YANG NYATA
GRADE 3COPPER WIRE ARTERI
GRADE 4SILVER WIRE ARTERI
ATASI HIPERTENSINYA
VITREKTOMI : PERDARAHAN VITREUS