Cataract Flashcards
What is first step in phacoemulsification
Capsulorhexis
What is capsulorhexis
Capsule of lens is removed from eye using shear
What is step 2 of phacoemulsificati0n
Hydrodissection
What is step 5 of phacoemulsification
Visoelastic - used to inflate the bag
What is the most common cause of secondary cataracts
Chronic anterior uveitis
What cataract can topical steroids cause
Posterior subcapsular
Symptoms of posterior subcapsular cataract
Glare
Reduce vision
What shape are traumatic cataracts
Stellate or flower shape
What pattern is seen in cataracts caused by diabetes
Snowflake
Cause of Christmas tree cataract
Myotonic dystrophy
Is cataract caused by atopic dermatitis bilateral or unilateral
Bilateral
What causes a shield shape cataract
Atopic dermatitis
What is nuclear sclerosis
Heartening and compaction of the central lens material - causes cataracts
What are the 3 classes of cataracts
Cortical
Nuclear sclerotic
Posterior subcapsular
What does nuclear sclerotic cataract involve
Yellowing and thickening