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41 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Cataract Definition
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Classification
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1. Age
2. location of Opacity 3. degree of opacity 4. etiology |
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01. Age
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02. Loc of opacity
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03. Degree of opacity
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Etiology
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Congenital Cataract
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Classification Congenital
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i. Capsular
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Ant and Post Cat
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ii. Polar
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Ant and Post
inv central part of capsule |
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iii. Nuclear
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Opacity conf to embr and featal nucleaus of lens
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iv. Lamellar (zonular)
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Opacities affect part lamella
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v. Sutural
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Ant and post Y suture
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vi. Central Oil Droplet
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Char of galactoseamia
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vii. Generalized
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Coronary
Blue Dot Membranous |
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Coronary
loc epid vision |
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Membranous
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Blue dot
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Common
Stationary Do not Affect vision |
Cataracta Punctata CApsula
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viii. Total Cataract
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Etiology
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01. Maternal Causes
02. Fetal Causes 03. Unknown Causes |
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I. Maternal CAuses
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i. Infection
ii. Intrauterine hypoxia/Placental Insufficiency' iii. Radiation iv. Drugs v. Endocrine |
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i. Infections
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Congenital Rubella
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ii. IU Hypoxia
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Preec
Ecl |
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ii. Radiation
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iii. Drugs
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Corticosteroids
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iv. Endocrine
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DM
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II> Foetal Disorders
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i. Hereditary
ii. Chromosomal iii. Ocular Anomalies iv. Metabolic Disorders v. Trauma |
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i. Hereditary
epidemiology pattern of inherit |
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ii. Chromosomal
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Trisomy 21 Down
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iii. Ocular Anomalies
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Aniridia
PERSISTENT Hyperplastic Primary Vitrous |
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iv. Metabolic Disorders
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Galactoseamia
Hypocalcemia Hypoglycemia |
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v. Trauma
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Forceps Delivery
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III. Unknown Cause
% |
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CONGENITAL LAMELLAR (ZONULAR) CATARACT
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Epidemiology
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Location
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Etiology
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unilat or bilat?
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Mode of transmission
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Also occurs in child with met disorders and IU infection
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Congenital Cataract
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