What parameter adjustment could help improve a patient's brief visual clarity after a blink while wearing a soft lens?

Improving a patient's brief visual clarity after a blink while wearing a soft contact lens can often be related to the fit and movement of the lens on the eye. A base curve that is too flat or too steep might not adequately conform to the corneal shape, leading to inadequate lens stability and poor visual acuity.

Selecting a base curve of 8.3 mm may enhance visual clarity for this patient because it likely provides a more optimal fit compared to a flatter or steeper curve. A steeper base curve can lead to better centration and consistent alignment with the cornea, resulting in improved stability of the lens during blinks. This can reduce the incidence of lens displacement and help the patient experience clearer vision after blinking, as the lens will remain more centered and provide consistent optics.

In contrast, a base curve of 8.9 mm might be too flat for some individuals, leading to issues such as excessive lens movement during blinks or inadequate tear exchange beneath the lens, which can cause temporary visual disturbances. Thus, a base curve adjustment to 8.3 mm is beneficial for enhancing the clarity of vision immediately following a blink.