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Cataract - Coggle Diagram
Cataract
Anatomical Classification
3) Nuclear cataract
4) Christmas tree cataract
2) Cortical cataract
5) Polar cataract
•Anterior
•Posterior
1) Subcapsular cataract
•Anterior
•Posterior
Grades
Black
Brown
Grey
Yellow
Complications:
Phacomorphic glaucoma
Phacolytic glaucoma
Lens displacement
Aetiology
1) Congenital
2) Aquired
B) Secondary (complicated)
.
•Traumatic
•Chronic uveitis
•Angle closure attack of
glaucoma
•Medications(steroid)
C) Systemic causes
.
•DM
•Myotonic dystrophy
•Atopic dermatitis
•Neurofibromatosis type-2
A) Age related (senile)
stages
.
• Immature
Iris shadow present
• Mature
Iris shadow absent
• Hypermature
Treatment
.
Lensectomy
Intracapsular cataract extraction
Extracapsular cataract extraction
Phacoemulsification
Laser assisted cataract surgery
Symptoms
.
Painless diminution of vision
Uni ocular diplopia
Night blindness
Day blindness
Index myopia
Index hypermetropia