What is a key characteristic of Biocular accommodative therapy?

• A. It dissociates the eyes with a large plus and a large minus lens
• B. It relies on occlusion as primary therapy
• C. It uses no lenses
• D. It keeps retinal image sizes the same

Answer: (A)

Biocular accommodative therapy trains both eyes to work together by separating the input to each eye. The defining feature is dissociating the eyes with a large plus lens in one eye and a large minus lens in the other. This creates opposite defocus and different image demands for each eye, so the patient must use both accommodation and vergence to fuse the two different views into a single percept. The strong separation ensures the binocular system can’t rely on one eye’s clear image, which helps strengthen binocular control of accommodation. This approach uses lenses and intentionally alters retinal image quality; it doesn’t rely on occlusion or keep image sizes identical, making the described method the best fit.