5 Key Takeaways

• 1

  Scleral lenses have minimal tear exchange compared to soft and corneal rigid lenses, leading to complications like debris and corneal hypoxic stress.

• 2

  Modifications such as fenestrations, notches, or channels can enhance tear exchange during scleral lens wear and reduce associated complications.

• 3

  A study with nine adults tested three landing zone modifications: toric, peripheral notches, and channels, to assess their impact on tear exchange.

• 4

  The channel design significantly increased fluorescent intensity and tear ingress, particularly in the corneal periphery, compared to notched and toric designs.

• 5

  Results suggest that channel modifications improve short-term tear exchange in scleral lenses, guiding future innovations in lens customization.