Which statement about indirect ophthalmoscopy's field of view is true?

Which statement about indirect ophthalmoscopy's field of view is true?

• A. It provides a smaller field of view than direct ophthalmoscope
• B. It provides a larger field view with binocular or monocular view
• C. It requires contact with the cornea
• D. It cannot be used at arm's length

Answer: (B)

The field of view in indirect ophthalmoscopy is much larger than in direct ophthalmoscopy because a condensing lens forms a real, magnified aerial image of the retina that you view through the instrument. This setup lets you see a wide portion of the retina, including far into the periphery, and it can be done with either one eye (monocular) or both eyes (binocular). It does not require contact with the cornea, and you can maintain a comfortable distance from the patient, often at arm’s length. So the best statement is that indirect ophthalmoscopy provides a larger field of view with either binocular or monocular viewing.

The field of view in indirect ophthalmoscopy is much larger than in direct ophthalmoscopy because a condensing lens forms a real, magnified aerial image of the retina that you view through the instrument. This setup lets you see a wide portion of the retina, including far into the periphery, and it can be done with either one eye (monocular) or both eyes (binocular). It does not require contact with the cornea, and you can maintain a comfortable distance from the patient, often at arm’s length. So the best statement is that indirect ophthalmoscopy provides a larger field of view with either binocular or monocular viewing.