Practice NEB Medical Standard 5 questions with answers and explanations.
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Visual field is the area visible to an eye while fixation is maintained.
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Cataract is opacification of the crystalline lens causing progressive visual impairment.
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Primary open-angle glaucoma is a chronic optic neuropathy often associated with raised intraocular pressure and open drainage angles.
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Acute angle-closure glaucoma is sudden closure of the anterior chamber angle causing painful red eye and raised intraocular pressure.
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Retinal detachment is separation of the neurosensory retina from the underlying retinal pigment epithelium.
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Diabetic retinopathy is retinal microvascular damage caused by diabetes mellitus.
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Papilloedema is optic-disc swelling caused by raised intracranial pressure.
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Optic neuritis is inflammation of the optic nerve causing visual loss, often with pain on eye movement.
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Keratitis is inflammation or infection of the cornea that can threaten vision.
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Uveitis is inflammation involving the uveal tract and sometimes adjacent ocular structures.
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Amblyopia is reduced vision from abnormal visual development without a structural explanation sufficient to account for it.
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Strabismus is misalignment of the visual axes of the eyes.
