Tolerability of an Anesthesia-free Tonometer Tip

Summary

The purpose of this study is to compare the tolerability and comfort of 4 different prototype anesthesia-free tonometer tips with the standard tonometer tip in conjunction with anesthesia. The best-tolerated prototype anesthesia-free tonometer tip will be identified for further development for home tonometry.

Eligibility

Age range

18+ years

Sex

All

Healthy volunteers

No

Interventions

• Diagnostic Test
  Sterile commercially available bandage contact lens

  Medical grade acrylic tip covered by a sterile commercially available bandage contact lens

• Diagnostic Test
  Medical grade silicone of a thickness <100 µm

  Medical grade acrylic tip coated with medical grade silicone of a thickness \<100 µm

• Diagnostic Test
  Medical grade silicone of a thickness >100 µm

  Medical grade acrylic tip coated with medical grade silicone of a thickness \>100 µm

• Diagnostic Test
  Medical grade silicone of a thickness <100 µm with blur tint

  Medical grade acrylic tip coated with medical grade silicone of a thickness \<100 µm with blur tint

• Diagnostic Test
  Standard tip in conjunction with a topical anesthetic

  Standard tip in conjunction with a topical anesthetic

Location