The manifestations of a typical case of divergence paralysis include the following:
Homonymous diplopia, due to an abnormal convergence position, arises rather suddenly. It occurs for all objects beyond a certain distance, mostly beyond 10 to 20 inches.
The angle of squint is small or moderate, and does not increase when the patient looks to the right or left; it will either remain the same as in the primary position of the eyes, or it will even decrease.
When an object is brought nearer to the patient, the two images approach each other and are finally fused when the object is at a disance of from 10 to 15 inches. At this distance binocular single vision is maintained when looking to the right as well as to the left.
When the object is brought still nearer, insufficient convergence causes crossed diplopia.
Appropriate prisms, base out, give the patient binocular single
URIST MJ. SIMULATED DIVERGENCE PARALYSIS. AMA Arch Ophthalmol. 1952;48(5):581-595. doi:10.1001/archopht.1952.00920010592004