Lens: infrared cataract: 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.

Try it

Ophthalmology · Lens: infrared cataract

Sample item

A glassblower develops a cataract. The characteristic early location is:

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

The answer and the reasoning

A. Posterior subcapsular, with exfoliation of the anterior capsule in some

Infrared and ionising radiation cause posterior subcapsular opacities. True exfoliation of the anterior capsule is classically described in glassblowers. Protective glasses prevent it.

Option by option

  • A. Posterior subcapsular, with exfoliation of the anterior capsule in some (correct)

    Correct. Radiation cataracts are posterior subcapsular.

  • B. Anterior cortical wedge

    An anterior location is not typical of IR cataract.

  • C. Nuclear brunescence only

    Nuclear brunescence is age related.

  • D. Peripheral cortical spokes

    Cortical spokes are senile cortical cataract.

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.

More Ophthalmology questions

Questions about this Ophthalmology question

What is the answer to this Ophthalmology question?

The best answer is A, Posterior subcapsular, with exfoliation of the anterior capsule in some. Infrared and ionising radiation cause posterior subcapsular opacities.

Why is "Anterior cortical wedge" not the answer?

An anterior location is not typical of IR cataract.

Why is "Nuclear brunescence only" not the answer?

Nuclear brunescence is age related.

Why is "Peripheral cortical spokes" not the answer?

Cortical spokes are senile cortical cataract.

What concept does this question test?

It tests Lens: infrared cataract in Ophthalmology. True exfoliation of the anterior capsule is classically described in glassblowers. Protective glasses prevent it.

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: infrared cataract?

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.