23 Questions
What is the meaning of the term 'glaucoma'?
Clouded or blue green hue
What is the average range of normal intraocular pressure (IOP)?
12-21 mmHg
What is the primary cause of glaucoma?
Increased intraocular pressure
Where is the aqueous humor produced in the eye?
Posterior chamber
What happens when the drainage canal in the eye is partially or completely blocked?
Fluids build up in the eye chamber leading to increased pressure
What is the classification of glaucoma based on the absence or presence of pupillary block?
Open angle and angle closure glaucoma
Which type of glaucoma is characterized by increased pressure within the eye due to blocked drainage canal?
Angle closure glaucoma
What is the outcome of progressive optic neuropathy in glaucoma?
Retinal ganglion cell death
'Ocular hypertension' refers to:
'High pressure of fluids within the eye'
'Trabecular meshwork' is primarily involved in:
Draining aqueous humor from the eye
What is the term used to describe death of retinal ganglion cells in glaucoma?
Glaucomatous optic neuropathy
What is the primary cause of glaucoma?
Block in transport of neurotrophins from brain to RGCs
Which type of glaucoma is usually asymptomatic until the onset of substantial visual field loss?
Open angle glaucoma
What is the main risk factor for developing glaucoma in individuals over 65 years of age?
Decreased retinal blood flow
What does PACG stand for in clinical manifestation?
Primary Angle Closure Glaucoma
In which type of glaucoma is the iris displaced forward due to iris thickening caused by pupil dilation?
Congenital glaucoma
What happens when the angle is closed in glaucoma?
Rapid buildup of aqueous humor in the anterior chamber
What is the main consequence of progressive optic neuropathy in all types of glaucoma?
Increased cupping and cup-to-disc ratio
What is the recommended frequency of screening for individuals aged 40-54 years with risk factors for glaucoma?
1-2 years
Which factor leads to decreased retinal blood flow in glaucoma?
Intraocular pressure (IOP) build-up
What are the prodromal symptoms experienced by patients with acute episodes of glaucoma?
Blurred or hazy vision with halos around lights and ocular pain
What causes the displacement of the iris forward in glaucoma?
Iris thickening caused by pupil dilation
What is the main effect of a closed angle in glaucoma?
The iris is displaced forward and rapid buildup of aqueous humor occurs in the anterior chamber.
Learn about open angle and angle closure glaucoma, differentiate between types based on signs & symptoms, understand the pathophysiology and risk factors, and compare the clinical presentation of POAG and ACG.
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