Question:easy
Amsler's grid is used to evaluate?
Amsler's grid is used to evaluate?
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A wavy-line chart that tests the macula.
Updated On: Jun 24, 2026
- Central 10 degrees of vision
- Central 20 degrees of vision
- Peripheral vision
- Lens opacity
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The Correct Option is A
Solution and Explanation
Step 1: Ask what part of the retina the test targets. The Amsler grid is a macular function chart, and the macula corresponds to roughly the central $10^{\circ}$ of the field of vision.
Step 2: Looking at the central spot, a patient with macular pathology sees the straight grid lines as bent or interrupted, the hallmark of metamorphopsia.
Step 3: This makes it a simple bedside or home monitor for diseases of the macula like ARMD, central serous chorioretinopathy, diabetic macular oedema and macular hole.
Step 4: The far field needs perimetry and the lens needs the slit lamp, so neither peripheral vision nor lens opacity is correct.
\[\boxed{\text{Central 10 degrees of vision}}\]
Step 2: Looking at the central spot, a patient with macular pathology sees the straight grid lines as bent or interrupted, the hallmark of metamorphopsia.
Step 3: This makes it a simple bedside or home monitor for diseases of the macula like ARMD, central serous chorioretinopathy, diabetic macular oedema and macular hole.
Step 4: The far field needs perimetry and the lens needs the slit lamp, so neither peripheral vision nor lens opacity is correct.
\[\boxed{\text{Central 10 degrees of vision}}\]
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