When teaching a client about glaucoma, the nurse explains that both open-angle and closed-angle glaucoma can result in blindness because:
1. pressure is applied to the optic chiasm.
2. the retina hemorrhages.
3. the optic nerve is irreversibly damaged.
4. the retina detaches.
Correct Answer: 3
Rationale 1: Glaucoma is not characterized by pressure to the optic chiasm.
Rationale 2: Retinal hemorrhage does not occur with glaucoma.
Rationale 3: The persistence of increased intraocular pressure damages the optic nerve.
Rationale 4: Retinal detachment does not occur with glaucoma.
Global Rationale: The persistence of increased intraocular pressure damages the optic nerve. There is no pressure on the optic chiasm and retinal hemorrhage or detachment does not occur.
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