Spectacle Adaption Symptoms
It is common to experience difficulties while adapting to new spectacles, even for those who have worn them previously. The reason is that the brain takes time to adjust to the new image size and position, resulting from the change in the lens power, even for long established wearers. However, the adjustment takes place more quickly if the spectacles are worn regularly.
The following symptoms are common during the adaption process:
Burning, dizziness and/or “pulling” of the eyes.
Headaches and/or nausea.
Distortion of objects and curving or sloping of flat surfaces.
Blurring of distance vision with reading spectacles.
Multifocal wearers, particularly first-time wearers, may experience significant symptoms while adapting to the need to adjust the head and eye position for different visual tasks.
Double vision may occur when looking through the division between the distance and near sections of a bifocal. In addition, difficulty may be experienced while walking, particularly where steps involved.
A change in the reading correction may make it necessary to adjust the distance of close work by holding books, newspapers, etc closer than previously.
Adaption symptoms can vary in intensity and can last from a couple of days to several weeks, depending on the type of lenses prescribed and the flexibility of the patient’s visual system. These symptoms are quite normal and usually disappear with time. However, if symptoms persist for longer than 2 to 3 weeks the Optometrist should be consulted.