Ophthalmology 191 Acquired Cataract Classification Types Causes Reason prevent Complicated Metabolic

0:54 Acquired Cataract Classification
0:59 Senile
1:30 Traumatic Cataract rosette
1:55 Complicated Cataract
2:22 Metabolic Cataract
3:20 Others
Playlist • Ophthalmology 04 Lens ...
classify
1. Senile cataract / AGE RELATED - 50y , UV light exposure in lifetime
2. Traumatic cataract - rosette
3. Complicated cataract - due to disease of eye like uveitis, glaucoma, retinitis pigmentosa, high myopia
Posteior subcapsular
Bread crumb appearance
4. Metabolic cataract -
diabetes -
early senile Type 2 40y+,
true diabetic younger, sudden onset, Type 1 snow flake,
Wilson’s - sunflower
Galatosemia - bilateral oil drop, reversible,dont drink milk
HypoCalcemic (tetanic)
Myotonic dystrophy - christmas tree
Fabry’s disease - propeller, spoke like
Atopic dermatitis - shield cataract
Lowe’s syndrome - amino acid metabolism
5. Electric cataract
6. Radiational cataract -
Heat - IR radiation - glass blower - dicoid posterior subcapsular
Irradiation - Xrays, gamma, neutrons, ionizing radiation
UV light  Senile
7. Toxic cataract e.g.,
i. Corticosteroid-induced cataract - asthma patients using steroids, posterior subcapsular
ii. ECHOTHIOPHATE - Miotics-not used now, induced cataract
iii. Copper (in chalcosis) and iron (in siderosis) induced cataract
Chlorpromazine - anti psychotics - stellate cataract
Chloroquine - Rheumatoid Arthritis
Amiodarone - anti arrhythimic
Busulphan - anti cancer
Gold - Rheumatoid arthritis
8. Cataract associated with skin diseases (Dermatogenic cataract)
9. Cataract associated with osseous diseases
10. Cataract with miscellaneous syndromes e.g.,
i. Dystrophica myotonica
ii. Down’s syndrome
iii. Lowe’s syndrome - amino acid metabolism
iv. Treacher-Collin’s syndrome.

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0:54

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