What should be avoided during lens insertion to ensure proper fit?

Creating bubbles during lens insertion should be avoided to ensure proper fit because bubbles can disrupt the interface between the lens and the eye, potentially leading to discomfort, irritation, or improper lens positioning. When air bubbles form between the lens and the cornea, they can impede full contact, allowing for the possibility of poor vision and a decreased effectiveness of the lens’s optics. Ensuring a smooth application without bubbles promotes a better fit and more comfortable wear.

Other practices, while important, do not directly relate to the insertion process in the same way. For instance, using fluorescein is sometimes employed to evaluate lens fit and communication with the ocular surface. Allowing the lens to settle is a natural part of the fitting process, where the lens adjusts to the contours of the eye after insertion. Evaluating corneal clearance is essential for confirming that the lens is properly aligned with the eye's surface. However, these actions, while they play a role in the overall fitting of the lens, do not create the same immediate risk of disruption as the creation of bubbles does.