Vision Disorders Quiz

What is a sign of Convergence Insufficiency?

• Intermittent diplopia at distance

• Normal stereopsis

• Reduced PFV at near

• High AC/A ratio

Answer explanation

Reduced PFV (Positive Fusional Vergence) at near is a key sign of Convergence Insufficiency, indicating difficulty in maintaining convergence for near tasks. The other options do not specifically indicate this condition.

Which symptom is associated with Divergence Excess?

• Asthenopia associated with distance tasks

• Parents complain of eye turning out

• Inability to sustain and concentrate

• Intermittent blur at near

Answer explanation

Divergence Excess is characterized by the eyes turning outward, especially noted by parents. This outward deviation is a key symptom, distinguishing it from other conditions that may involve different visual complaints.

What is a management option for Basic Exophoria?

• Surgery

• Vertical prism

• None of the above

• Occlusion

Answer explanation

Basic Exophoria typically does not require surgical intervention, vertical prism, or occlusion as management options. Therefore, the correct choice is 'None of the above'.

Which sign indicates Basic Esophoria?

• High calculated AC/A ratio

• Reduced NFV at distance

• EP near = distance

• XP near > distance

Answer explanation

Basic Esophoria is indicated by the sign EP near = distance, meaning the eye position is the same for near and distance. This reflects a lack of convergence at near, characteristic of esophoria.

What symptom is associated with Divergence Insufficiency?

• Sleepiness when reading

• Words move on the page

• Asthenopia and headaches

• Intermittent diplopia at distance

Answer explanation

Divergence Insufficiency often leads to intermittent diplopia at distance due to difficulty in maintaining proper eye alignment when looking far away, making this the correct symptom associated with the condition.

Which sign is characteristic of Convergence Excess?

• Significant EP at near

• XP distance > near

• High MEM and cross-cyl findings

• Low NRA

Answer explanation

Convergence Excess is characterized by significant esophoria (EP) at near distances, indicating a tendency for the eyes to converge excessively when focusing on nearby objects.

What is a common management strategy for Convergence Insufficiency?

• Surgery only

• No treatment needed

• Vision therapy

• Only optical correction

Answer explanation

Vision therapy is a common management strategy for Convergence Insufficiency, as it helps improve eye coordination and focusing abilities, unlike surgery or optical correction alone.