Lens and cataract: toric intraocular lens: practice question

A Ophthalmology question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Ophthalmology · Lens and cataract: toric intraocular lens

Sample item

A cataract patient has 2.5 dioptres of regular corneal astigmatism and wants spectacle independence for distance. Which implant best suits?

AAccommodating intraocular lensBStandard spherical monofocal intraocular lensCMultifocal intraocular lensDToric monofocal intraocular lens

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

D. Toric monofocal intraocular lens

A toric IOL, aligned with the steep corneal axis, corrects regular corneal astigmatism at the time of cataract surgery. Spherical, multifocal and accommodating lenses address power and presbyopia but do not correct meaningful astigmatism. Astigmatism must be regular and stable.

Option by option

A. Accommodating intraocular lens
An accommodating lens aims at near vision and does not correct astigmatism.
B. Standard spherical monofocal intraocular lens
A spherical lens leaves the 2.5 dioptres of astigmatism uncorrected.
C. Multifocal intraocular lens
A multifocal lens targets presbyopia and does not correct this degree of astigmatism.
D. Toric monofocal intraocular lens (correct)
Correct. A toric lens neutralises regular corneal astigmatism.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

Questions about this Ophthalmology question

What is the answer to this Ophthalmology question?

The best answer is D, Toric monofocal intraocular lens. A toric IOL, aligned with the steep corneal axis, corrects regular corneal astigmatism at the time of cataract surgery.

Why is "Accommodating intraocular lens" not the answer?

An accommodating lens aims at near vision and does not correct astigmatism.

Why is "Standard spherical monofocal intraocular lens" not the answer?

A spherical lens leaves the 2.5 dioptres of astigmatism uncorrected.

Why is "Multifocal intraocular lens" not the answer?

A multifocal lens targets presbyopia and does not correct this degree of astigmatism.

What concept does this question test?

It tests Lens and cataract: toric intraocular lens in Ophthalmology. Spherical, multifocal and accommodating lenses address power and presbyopia but do not correct meaningful astigmatism. Astigmatism must be regular and stable.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Lens and cataract: toric intraocular lens?

Group the red eye by what to examine and what the pupil does. Then use the flashcards and the other Ophthalmology questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.