The non-surgical clinical treatment methods of binocular fusion abnormalities in optometry are mainly divided into two types: first, optical correction; Second, visual rehabilitation training guidance.

Optical Correction

Optical correction includes refractive correction, additional spherical lens and additional prism.

Additional spherical lens

1. Mechanism and principle of additional spherical lens

Wear appropriate corrective distance glasses. No matter looking far or close, you can add positive or negative ball glasses. The premise is that the clarity of looking at the target remains unchanged without affecting its vision. The intervention of spherical lens can change the regulatory stimulation of the target to the fixation eye, so as to correct the original abnormal regulatory level and alleviate the symptoms, and then affect the regulatory collection through the change of regulatory response, so as to alleviate the abnormal aggregation and dispersion function.

2. Additional spherical lens type

Positive spherical lens addition: the indications with abnormal regulation function as the primary inducement mainly include insufficient regulation, poor regulation maintenance, insufficient false collection, etc. at the same time, the collection is excessive in abnormal aggregation and dispersion function. Due to the high AC / a ratio, a large correction efficiency of regulatory collection can be obtained by modifying a small amount of regulation through low degree additional spherical lens.

Negative spherical lens attachment: negative spherical lens attachment is mainly used in excessive dispersion or even intermittent exotropia and simple exotropia. Negative spherical lens attachment is adjusted by negative spherical lens stimulation, and the generation of stimulus collection in the process of adjustment, so as to control the eye position.