Podcast
Questions and Answers
What is chemosis defined as?
What is chemosis defined as?
- Redness around the pupil
- Inflammation of the cornea
- Oedema of the conjunctiva (correct)
- Blockage of the tear duct
What is a common early stage treatment for subconjunctival hemorrhage?
What is a common early stage treatment for subconjunctival hemorrhage?
- Antibiotics
- Surgery
- Cold Compress (correct)
- Warm Compress
In later stages of subconjunctival hemorrhage, what is the recommended treatment?
In later stages of subconjunctival hemorrhage, what is the recommended treatment?
- Antihistamines
- Reassurance to the patient (correct)
- Surgery
- Antibiotics
Which of the following is a common local cause of chemosis?
Which of the following is a common local cause of chemosis?
An insect bite to the eyelid can lead to which condition?
An insect bite to the eyelid can lead to which condition?
Which of the following is an orbital inflammation?
Which of the following is an orbital inflammation?
Obstruction to local blood flow can cause which type of chemosis?
Obstruction to local blood flow can cause which type of chemosis?
An orbital tumor can result in which type of chemosis?
An orbital tumor can result in which type of chemosis?
Increased vascular permeability can cause which type of condition?
Increased vascular permeability can cause which type of condition?
Which systemic condition is due to increased vascular permeability?
Which systemic condition is due to increased vascular permeability?
What color does a subconjunctival hemorrhage typically appear at first?
What color does a subconjunctival hemorrhage typically appear at first?
How long does it typically take for a subconjunctival hemorrhage to absorb completely?
How long does it typically take for a subconjunctival hemorrhage to absorb completely?
Which of the following is a type of lid inflammation?
Which of the following is a type of lid inflammation?
Which of these conditions can cause passive chemosis?
Which of these conditions can cause passive chemosis?
Which of these refers to inflammation of the orbit?
Which of these refers to inflammation of the orbit?
Which of the following affects vascular permeability and causes systemic chemosis?
Which of the following affects vascular permeability and causes systemic chemosis?
What is the main feature that does not suggest inflammation in subconjunctival haemorrhage?
What is the main feature that does not suggest inflammation in subconjunctival haemorrhage?
What is redness of the conjunctiva called?
What is redness of the conjunctiva called?
What is defined as oedema of the cornea?
What is defined as oedema of the cornea?
Which systemic condition could cause chemosis?
Which systemic condition could cause chemosis?
Flashcards
Chemosis
Chemosis
Oedema of the conjunctiva due to transudation under the membrane, causing bulging around the cornea.
Local Causes of Chemosis
Local Causes of Chemosis
Marked conjunctival inflammation, severe keratitis, iritis, acute congestive glaucoma, panophthalmitis, lid inflammation and orbital inflammation.
Passive Chemosis
Passive Chemosis
Obstruction to local blood flow due to orbital tumor, pulsating exophthalmos, after lateral orbitotomy.
Systemic Causes of Chemosis
Systemic Causes of Chemosis
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Study Notes
- Chemosis is oedema of the conjunctiva, caused by transudation under the membrane, leading to a bulge around the cornea.
Causes of Chemosis
- Local causes involve marked conjunctival inflammation, severe keratitis, iritis, acute congestive glaucoma and panophthalmitis.
- Lid inflammation due to insect bites or styes can cause chemosis.
- Orbital inflammation, such as cellulitis or periosteitis, are causes of chemosis.
- Passive chemosis arises from obstruction to local blood flow, potentially due to orbital tumours or pulsating exophthalmos, especially after lateral orbitotomy.
- Systemic causes are linked to increased vascular permeability.
- Nephritis, cardiac failure, angio-neurotic oedema, and urticaria are considered systemic causes.
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