QuestionSBA
QuestionChoice
The cornea is the clear outer layer of the eye that covers the iris and the pupil. It does not become obstructed in closed-angle glaucoma.
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d
Cornea
QuestionChoice
Glaucoma is a condition in which increased pressure inside the eye causes damage to internal structures, leading to visual impairment. The fluid inside the eye, called aqueous humor, is produced by the ciliary body and circulates through the anterior chamber of the eye. The fluid then leaves the eye through the trabecular meshwork, a network of tiny pores in the angle between the iris and the cornea. The trabecular meshwork acts as a drain for the fluid, allowing it to be reabsorbed into the bloodstream. If the trabecular meshwork becomes clogged or obstructed, the fluid cannot leave the eye, leading to increased pressure and risking damage to the optic nerve.
10007196
a
Trabecular meshwork
QuestionChoice
The retina is the inner layer of the eye that contains the photoreceptive cells responsible for converting light into electrical signals that are sent to the brain. It does not become obstructed in closed-angle glaucoma.
10007197
b
Retina
QuestionChoice
The optic nerve is the nerve that carries electrical signals from the retina to the brain. The optic nerve is sensitive to increased pressure and can be damaged by glaucoma. However, it does not become obstructed in closed-angle glaucoma.
10007198
c
Optic nerve
QuestionChoice
The iris is the coloured part of the eye that controls the size of the pupil. It does not become obstructed in closed angle glaucoma.
10007200
e
Iris
Concept
Chapter
2693
4576
Chronic open angle glaucoma
Topic
140
Ophthalmology
13986
A 65-year-old man presents to his GP surgery with poor vision. A recent optician's appointment suggested the pressures within his eyes were elevated.

Which of the following structures becomes obstructed in closed angle glaucoma?
a