Zd. Cataract
31
7/27/2019 Zd. Cataract http://slidepdf.com/reader/full/zd-cataract 1/31
-
Upload
hapiz-arlanda-sani -
Category
Documents
-
view
228 -
download
0
Transcript of Zd. Cataract
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 1/31
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 2/31
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 3/31
II. TUJUAN INSTRUKSIONAL KHUSU
Setelah Proses Belajar Mengajar mahasiswamampu mengetahui gejala katarak , faktor resiko,prinsip pengobatan, komplikasi, dan mengatasikomplikasi secara garis besar secara baik danbenar sesuai dengan kompetensinya
10/8/2013Z A L D I CATARACT
3
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 4/31
10/8/2013
4
Z A L D I CATARACT
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 5/31
10/8/20135 Z A L D I CATARACT
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 6/31
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 7/31
PHYSIOLOGY
REFRACTION POWER : +18 to + 20 D
ACCOMODATION :
contraction of ciliary muscles results
in laxity of zonules, which leads to increaseconvexity of lens due to its inherent elasticity
10/8/2013Z A L D I CATARACT
7
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 8/31
CATARACT
10/8/2013Z A L D I CATARACT
8
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 9/31
CATARACT
DefinitionAny opacity of the lens or lossof transparancy of the
crystalline lens that causesdiminution or impairment of vision
Examination1. Pen light : shadow test2. Funduscopy : reflex fundus
10/8/2013
9
Z A L D I CATARACT
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 10/31
Optics of Crystalline Lens
REFRACTION POWER : +18 to + 20 D
ACCOMODATION :
contraction of ciliary muscles results
in laxity of zonules, which leads to increaseconvexity of lens due to its inherent elasticity
10/8/2013Z A L D I CATARACT
10
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 11/31
EPIDEMIOLOGYCross-sectional studies place theprevalence of cataracts at 50% in
individuals aged 65 to 74; the prevalenceincreases to about 70% for those over 75
10/8/2013Z A L D I CATARACT
11
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 12/31
CLINICAL FINDINGSymptoms1. Image Blur 2. Diurnal Variation of Vision3. Distortion (Metamorphopsia )4. Diplopia/Polyopia5. Altered Color Perception6. Black Spots7. Behavioral Changes
10/8/2013
12
Z A L D I CATARACT
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 13/31
VISUAL ACUITY
EMMETROPIA CATARACT
10/8/2013
13
Z A L D I CATARACT
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 14/31
ETIOLOGY
AgingTrauma,Toxins,Systemic disease (such as diabetes),
SmokingHeredity.
10/8/2013Z A L D I CATARACT
14
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 15/31
ETIOLOGY
1. Senile (Degenerative )50% aged 65 – 74 ;
70% > 75 years2. Traumatic
- Penetrating
- Infrared irradiation- Electrocution- Ionizing Radiation
10/8/2013
15
Z A L D I CATARACT
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 16/31
3. Systemic Diseases ( Metabolic ) - Diabetes
- Hypocalcaemia
4. Toxic- Corticosteroids
- Miotics- Smoking
5. Heredity ( Congenital )10/8/2013
16
Z A L D I CATARACT
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 17/31
UNDERLYING FACTORS
Oxidative damage
( free radical reactions )Ultraviolet light damageMalnutrition
10/8/2013
17
Z A L D I CATARACT
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 18/31
10/8/201318 Z A L D I CATARACT
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 19/31
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 20/31
CATARACT SURGERY
10/8/2013Z A L D I CATARACT
20
CATARACT
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 21/31
CATARACT
SURGERY
10/8/2013
21
Z A L D I CATARACT
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 22/31
PHACOEMULSIFICATION
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 23/31
IOL IMPLANTATIONZ A L D I
CATARACT
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 24/31
VISUAL REHABILITATION
10/8/2013Z A L D I CATARACT
24
1. Intraocular Lens (IOL)2. Spectacles
3. Contact Lens
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 25/31
RESUME
Any opacity of the lens or loss of transparancy of the crystalline lensThe most common causes of degenerativeManagement of Cataract only Surgery (Cataract Extraction ) with Intra ocular lensimplantation
10/8/2013Z A L D I CATARACT
25
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 26/31
DISLOCATED LENS
10/8/201326 Z A L D I CATARACT
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 27/31
MARFAN SYNDROME
10/8/2013
27
Z A L D I CATARACT
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 28/31
LENS DISLOCATED
10/8/2013
28
Z A L D I CATARACT
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 29/31
10/8/201329 Z A L D I CATARACT
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 30/31
REFERENCES American Academy of Ophthalmology, Lens andCataract , section 6 , 2009-2010.Khurana A, Ophthalmology, New Delhi, New Age
Internasional (p) Limited Publisher, 2007.Vaughan D.G, Asbury T, Riordan P, GeneralOphthalmology , USA, 2007.
10/8/2013Z A L D I CATARACT
30
7/27/2019 Zd. Cataract
http://slidepdf.com/reader/full/zd-cataract 31/31
10/8/2013Z A L D I CATARACT31
