When a patient is wearing monovision contacts, is it necessary to test the distance visual acuity in the near eye?

In the context of monovision contact lens wear, it is typically unnecessary to test the distance visual acuity in the near eye. Monovision is a technique where one eye is corrected for distance vision and the other for near vision, effectively allowing the patient to achieve functional vision for both distances without the need for multifocal lenses.

Since the primary purpose of monovision is to provide a clear visual experience at separate distances by designating one eye for near and one eye for distance, the visual acuity testing usually focuses on the distance eye to assess how well that eye is performing. The near eye's function is not evaluated for distance vision because it’s not intended to be used for that purpose.

Therefore, in routine assessments, testing the distance visual acuity in the near eye does not provide relevant clinical information and can be considered unnecessary unless the patient's visual needs dictate otherwise. This understanding helps streamline the examination process and focuses on optimizing the patient's overall visual function.