Cyclovergence

Cyclovergence is a term used in Optometry and Ophthalmology to describe the rotation of the eyes around the visual axis, an imaginary line passing through the center of the eye. This rotation can be either in the same direction (convergent cyclovergence) or in opposite directions (divergent cyclovergence).

Mechanism

Cyclovergence is a complex process that involves the coordinated action of several extraocular muscles. These muscles, controlled by the oculomotor, trochlear, and abducens nerves, work together to rotate the eyes.

Clinical significance

Cyclovergence plays a crucial role in maintaining binocular vision and depth perception. Abnormalities in cyclovergence can lead to conditions such as Cyclophoria, a type of strabismus where there is a tendency for the eyes to rotate around the visual axis. This can result in symptoms such as double vision (diplopia) and visual discomfort.

Measurement

The measurement of cyclovergence is important in the diagnosis and treatment of various eye disorders. It can be measured using a variety of techniques, including the Maddox rod test and the Bagolini striated glasses test.

Treatment

Treatment of conditions related to cyclovergence typically involves a combination of orthoptic therapy, corrective lenses, and in some cases, surgery. The goal of treatment is to restore normal eye alignment and improve binocular vision.

File:Cyclovergence.jpg

Cyclovergence involves the rotation of the eyes around the visual axis.

See also

• Cyclophoria
• Cycloplegia
• Cycloversion
• Cyclotropia