Which of the following is a binocular test that assesses accommodation?

Which of the following is a binocular test that assesses accommodation?

• A. Minus-lens test
• B. Push-up test
• C. Monocular accommodative facility
• D. MEM

Answer: (D)

Accommodation testing can be done with one eye at a time or with both eyes open to see how the whole visual system handles near work. MEM, or Monocular Estimation Method, is performed during retinoscopy with one eye at a time to estimate accommodative response, so it’s a monocular technique and not a binocular measure. The push-up near-point test, however, is typically done with both eyes open, assessing how well the binocular system can sustain clear, single vision as a near target is moved closer. This makes it the binocular accommodation test among the options, because it reflects the coordinated action of accommodation and vergence in both eyes. Other options are primarily monocular in practice: the minus-lens test is used to stimulate accommodation during monocular viewing, and monocular accommodative facility uses a single eye (often with the other occluded) to flip lenses and test the speed of accommodation.

Accommodation testing can be done with one eye at a time or with both eyes open to see how the whole visual system handles near work. MEM, or Monocular Estimation Method, is performed during retinoscopy with one eye at a time to estimate accommodative response, so it’s a monocular technique and not a binocular measure.

The push-up near-point test, however, is typically done with both eyes open, assessing how well the binocular system can sustain clear, single vision as a near target is moved closer. This makes it the binocular accommodation test among the options, because it reflects the coordinated action of accommodation and vergence in both eyes.

Other options are primarily monocular in practice: the minus-lens test is used to stimulate accommodation during monocular viewing, and monocular accommodative facility uses a single eye (often with the other occluded) to flip lenses and test the speed of accommodation.