Vergence training is a broader form of vision therapy that targets the ability of the eyes to move inwards and outwards together (convergence and divergence). It aims to improve binocular co‑ordination and comfort.
Approach
Programmes use a variety of tools such as prisms, stereograms, computer displays, and convergence or divergence cards to challenge and expand vergence ranges. Exercises are tailored to the specific dysfunction identified.
- Helps treat convergence insufficiency, some forms of intermittent strabismus, and decompensated phorias
- Requires regular supervised and home‑based sessions over several weeks or months
- Progress is assessed with measures of fusional reserves and symptom questionnaires
- Requires patient motivation and careful instruction
Clinical Role
Vergence training can significantly reduce symptoms such as headaches, double vision, and loss of place when reading in suitable cases. It is not appropriate for all alignment problems and must follow full orthoptic assessment.
- Outcomes depend on age, severity, and adherence to the programme
- Training may be combined with refractive correction, prisms, or surgery
- Any sudden change in alignment or vision during therapy warrants urgent review
- Long‑term maintenance exercises may be suggested after initial success
