CATARACT

Z A L D I

RSUD Dr.PIRNGADI MEDAN

2010

April 27, 2023 ZALDI MD , CATARACT 1

Optics of Crystalline Lens REFRACTION POWER : +18 to + 20 D

ACCOMODATION :

contraction of ciliary muscles results in laxity of zonules, which leads to increase convexity of lens due to its inherent elasticity

April 27, 2023 ZALDI MD , CATARACT 2

DEFINITIONAny opacity of the lens or loss of transparancy of the crystalline lens that causes diminution or impairment of vision

April 27, 2023 ZALDI MD , CATARACT 3

ETIOLOGY1. Senile / Degenerative2. Traumatic

1. Penetrating2. Concussion (Rosette Cataract)3. Infrared irradiation 4. Electrocution5. Ionizing Radiation

April 27, 2023 ZALDI MD , CATARACT 4

ETIOLOGY ( contd )3. Metabolic

1. Diabetes (Snow Storm Cataract)2. Hypoglycaemia3. Hypocalcaemia

4. Toxic4. Corticosteroids5. Chlorpromazine6. Miotics

April 27, 2023 ZALDI MD , CATARACT 5

Clinical PresentationSymptoms1. Glare2. Image Blur3. Diurnal Variation of Vision4. Distortion (Metamorphopsia)5. Diplopia/Polyopia6. Altered Color Perception7. Black Spots8. Behavioral Changes

April 27, 2023 ZALDI MD , CATARACT 6

THERAPY SURGERY

1. INTRA CAPSULAR CATARACT SURGERY ( ICCE )

2. EXTRA CAPSULAR CATARACT SURGERY ( ECCE )- MANUAL ECCE- MANUAL PHACO ( SICS = SMALL INCISION CATARACT SURGERY )- PHACOEMULSIFICATION

April 27, 2023 ZALDI MD , CATARACT 7

VISUAL REHABILITATION / CORRECTION

1. INTRAOCULAR LENS ( IOL )

2. GLASSES

3. CONTACT LENS

April 27, 2023 ZALDI MD , CATARACT 8