Heterophoria

A trend, not a diagnosis to be derived from symptoms

Heterophoria can manifest in different ways and have varying characteristics. Its presence alone does not automatically explain eye strain, difficulty reading or visual instability: these problems may be due to many factors and require appropriate assessment.

Relationship with binocular vision

To maintain a single perception, the two eyes must work together and the brain must integrate the images. Accommodation, convergence, fusion and postural control all play a part in this balance. If double vision, new symptoms or persistent difficulties arise, the patient should be referred to an ophthalmologist; where appropriate, the management plan may also involve other healthcare professionals.

When an optical solution comes into play

Any prismatic compensation or other adjustment to the prescription must be based on a doctor’s prescription or specialist advice. At Isolani Optical Centres, we do not make diagnoses: we produce the prescribed solution, check that it is compatible with the frames, and take care of the centring, fitting and adjustment.

For position-sensitive lenses, the Behavioural Centring It allows parameters to be measured whilst the wearer is in a natural posture. This is a technical step in the process of fitting the glasses, not a medical examination.

Related terms

Find out more binocular vision, stereopsis e diplopia.

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