What should be the primary concern if a patient experiences blurred vision after blinking?

When a patient experiences blurred vision specifically after blinking, the primary concern is typically related to the interaction between the contact lens and the tear film on the eye’s surface. Improper lens fit can lead to inadequate movement of the lens on the cornea, causing the lens to not align correctly with the natural curvature of the eye. This misalignment can result in uneven distribution of tears beneath the lens, making it difficult for light to focus properly on the retina, hence leading to blurred vision upon blinking.

When the lens moves too much or not enough, it can disrupt the tear film, causing disturbances that manifest as blurred vision. An optimal lens fit ensures that the lens stabilizes in place, allowing for a consistent tear film layer, which is crucial for clear vision.

While inadequate lens hygiene, dry eye syndrome, and lens damage could contribute to visual disturbances, they are less likely to be the primary concern in this specific scenario of blurred vision immediately following a blink. Improper fit directly affects the fitting relationship between the lens and the eye, which is immediately impactful on visual clarity during blinking.