5 Key Takeaways

• 1

  The base curve of a scleral lens is a critical fitting parameter that influences lens power and overall visual clarity.

• 2

  A steeper base curve than the cornea creates a plus tear reservoir, leading to a high minus over-refraction.

• 3

  A flatter base curve results in a minus tear reservoir, necessitating a plus power for clear vision.

• 4

  Improper base curve selection can cause midperipheral touch or excessive clearance, affecting lens fit and comfort.

• 5

  Optimizing the base curve alignment enhances visual quality and helps achieve a more centered scleral lens fit.