Welcome to your 👁️ Visual Loss, Intraocular Pressure & Open-Angle Glaucoma Arena — 40 Integrated MCQs
1.
A 61-year-old woman has progressive optic disc cupping and corresponding visual-field loss. Gonioscopy shows an open angle, but several clinic measurements of intraocular pressure fall within the statistically normal range. Which additional assessment is most useful before classifying the condition as normal-tension glaucoma?
2.
A patient with open-angle glaucoma requires an additional topical drug that decreases aqueous formation through inhibition of carbonic anhydrase in the ciliary processes. Which therapeutic action is being used?
3.
A 66-year-old man has slowly progressive difficulty noticing objects to one side. Visual acuity is 6/9 in both eyes and the cornea and lens are clear. Fundus examination shows superior neuroretinal rim thinning. Which additional finding would provide the strongest functional correlation with this structural abnormality?
4.
A 62-year-old woman develops sudden severe ocular pain, redness, blurred vision and colored halos around lights. Which diagnosis is most likely?
5.
A 63-year-old patient with glaucoma is prescribed a topical alpha-2 adrenergic agonist as additional pressure-lowering therapy. Which action best explains its therapeutic effect?
6.
A 64-year-old patient has progressive optic disc cupping and an arcuate visual field defect. Gonioscopy shows an open angle and repeated intraocular pressure measurements are elevated. Which diagnosis is most likely?
7.
Which pathway is the major route of aqueous humor drainage from the anterior chamber?
8.
A 70-year-old man has progressive peripheral visual field loss but retains good central visual acuity. Which condition best explains this pattern?
9.
Which optic disc change most strongly suggests glaucomatous optic neuropathy?
10.
A 59-year-old man has raised intraocular pressure on repeated measurements. Gonioscopy shows an open angle, while the optic disc and visual fields are normal. Which diagnosis is most appropriate?
11.
A 60-year-old man has raised intraocular pressure but normal optic discs and visual fields. His sister has normal-range measured pressure but definite glaucomatous cupping with corresponding field loss. Which interpretation correctly distinguishes their conditions?
12.
A 55-year-old woman has glaucomatous optic disc cupping and corresponding visual field loss. Her untreated intraocular pressure remains within the statistically normal range on repeated measurements. Which diagnosis is most likely?
13.
A patient with known ocular hypertension attends follow-up. Which finding would most strongly indicate progression to glaucoma?
14.
A 34-year-old contact lens wearer develops rapidly worsening ocular pain, photophobia and reduced vision. Examination reveals a focal corneal epithelial and stromal lesion, while the posterior segment is not primarily involved. Which management principle is most appropriate?
15.
A 57-year-old woman has repeatedly elevated intraocular pressure, an open anterior chamber angle and normal optic nerve imaging and visual fields. Pachymetry demonstrates a thin central cornea. What is the most important implication of this finding?
16.
Which drug class lowers intraocular pressure mainly by increasing uveoscleral aqueous outflow?
17.
Aqueous humor formed by the ciliary processes normally reaches the anterior chamber through which structure?
18.
Which investigation is most useful for detecting functional visual loss in glaucoma?
19.
A 69-year-old man with primary open-angle glaucoma has extensive peripheral visual-field loss but still reads the visual acuity chart well. Which explanation best accounts for this apparent discrepancy?
20.
A patient with primary open-angle glaucoma is treated with a topical beta-blocker. What is the principal mechanism by which this drug lowers intraocular pressure?
21.
A 65-year-old woman with normal-tension glaucoma develops a new optic disc hemorrhage and a reproducible paracentral visual-field defect. Her measured intraocular pressure remains within the statistically normal range. Which management principle is most appropriate?
22.
A glaucoma suspect has a focal neuroretinal rim abnormality. Optical coherence tomography demonstrates corresponding focal retinal nerve-fibre layer thinning, while the first visual-field test is equivocal. How should the OCT result be interpreted?
23.
A 58-year-old man with diabetes develops sudden painless visual haze and numerous floaters in one eye. The anterior segment is quiet, but the fundus cannot be visualized clearly because the posterior segment media appear obscured. Which diagnosis is most likely?
24.
A patient with suspected glaucoma undergoes gonioscopy. What is the main purpose of this investigation?
25.
Which finding best defines glaucoma rather than simply raised intraocular pressure?
26.
A 64-year-old man with established primary open-angle glaucoma has progression of an arcuate field defect despite good adherence to tolerated topical therapy. Gonioscopy confirms an open angle, and he has not previously received laser treatment. Which additional management option is most appropriate?
27.
A patient has normal aqueous humor production but increased resistance within the conventional aqueous outflow pathway. Which physiological consequence is most directly expected?
28.
A 43-year-old woman develops painful blurred vision, photophobia and circumcorneal redness. Slit-lamp examination demonstrates inflammatory cells within the anterior chamber, while the fundus is unremarkable. Which diagnosis best explains this presentation?
29.
A patient with treated primary open-angle glaucoma attends follow-up. Serial imaging shows increasing retinal nerve-fibre layer loss, and repeated perimetry demonstrates enlargement of the existing field defect despite good treatment adherence. The measured intraocular pressure remains at the previously selected target. What is the most appropriate interpretation?
30.
A patient presents with sudden painless loss of vision associated with flashes and floaters followed by a curtain-like shadow across the visual field. Which condition is most likely?
31.
A 71-year-old woman develops sudden painless reduction of vision in one eye. Fundus examination reveals widespread retinal hemorrhagic changes rather than a clear detached retina. Which diagnosis is most consistent with these findings?
32.
A patient with sudden painless profound monocular visual loss is found to have acute retinal ischemia. Which diagnosis is most likely?
33.
A patient has slowly progressive visual loss. Vision improves significantly when tested through a pinhole. Which cause is most likely contributing to the reduced visual acuity?
34.
A 72-year-old man with advanced primary open-angle glaucoma continues to show structural and visual-field progression despite tolerated medical therapy and previous laser trabeculoplasty. Intraocular pressure remains inadequately controlled. Which management principle is most appropriate?
35.
A 68-year-old patient reports gradually increasing difficulty reading and recognizing faces. The cornea and lens are clear, peripheral fields are relatively preserved, and fundus examination shows a central macular abnormality. Which pattern of visual impairment is most likely?
36.
A 54-year-old man presents with marked unilateral visual reduction. The cornea and lens are clear, but a relative afferent pupillary defect is present in the affected eye. Which anatomical localization is most strongly suggested?
37.
Which visual field defect is classically associated with early glaucomatous damage?
38.
A 68-year-old man reports slowly progressive painless blurring of vision over 2 years. Examination shows a cloudy lens and a normal fundus view in the unaffected eye. Which structure is primarily responsible for his visual loss?
39.
A 55-year-old man has repeatedly raised intraocular pressure, an open angle and no structural or functional glaucomatous damage. His findings remain stable during follow-up and his overall risk of conversion is judged to be low. Which management approach is most appropriate?
40.
A 66-year-old patient presents with sudden unexplained major visual loss. Which management principle is most appropriate?
