Question

In which conditions is accommodation reduced?

Hint:

Accommodation reduces with age and certain medical conditions, but corrective lenses and surgery can help manage the symptoms.

Answer 1

Step 1: Conditions Leading to Reduced Accommodation.
Accommodation can be reduced in several conditions, including:

1. Presbyopia:
As individuals age, the lens of the eye becomes less flexible, reducing the eye's ability to accommodate. This leads to difficulty focusing on near objects, especially after the age of 40.

2. Cataracts:
The clouding of the lens in cataracts reduces its ability to change shape and accommodate for near vision, causing blurred vision.

3. Neurogenic or Muscular Disorders:
Conditions affecting the nervous system or the ciliary muscles (which control accommodation) can impair the accommodation response. This includes conditions like paralysis of the ciliary muscles.
4. Medications: Certain medications, such as atropine or other muscarinic blockers, can temporarily reduce accommodation by paralyzing the ciliary muscles.

Step 2: Conclusion.
Conditions like presbyopia and cataracts are common causes of reduced accommodation. Addressing these underlying conditions can improve accommodation.