The Eye And Orbit Flashcards
The lacrimal sac is drained by
Naso lacrimal duct into the nose opening in the inferior meatus under the inferior turbinate
How many lacrimal ducts are there ?
10-15
How does cornea achieve its clarity?
Due to regular arrangement of collagen bundles and relative dehydration
The most common malignant tumour of the eyelid is
Basal cell carcinoma or rodent ulcer
What type of edges does rodent ulcer has?
Raised
Treatment for rodent ulcer
Local radiotherapy or cryotherapy can be carried out however recurrence is more common more aggressive and more difficult to detect
The most common ocular malignancy of childhood is
Retinoblastoma
What reflex in eye we can see in retinoblastoma?
White reflex
What is the most common primary malignant tumour of the eye in case of adults?
Malignant melanoma
Why alkali burns are more serious?
Because ocular penetration occurs quickly and ischaemic necrosis can result
What is the appearance of Varnal conjunctivitis?
Cobblestone appearance
What are the chronic painless loss of vision?
🩵Cataract
🩵glaucoma
🩵macular degeneration
🩵diabetic retinopathy
