OCT Vibrography for Biomechanical Properties of Tissues

Group 1:

Inclusion criteria:

• Subjects with healthy eyes (age 18 - 75, N = 50)

Exclusion criteria:

* Subjects with history of eye diseases, and previous eye surgeries.
* Subjects with diabetes, glaucoma family history
* Subjects allergic to anesthetic eyedrop, especially proparacaine
* Subjects with severe allergy
* Subjects who have difficulty biting
* Subjects who have recurrent corneal erosion

Group 2:

Inclusion criteria:

• Subjects with healthy skin (age 18 - 75, N = 10)

Exclusion criteria:

• Subjects with open cuts/sores on the skin, skin infection, or any contagious skin condition

Group 3:

Inclusion criteria:

• Subjects with healthy gingiva (age 18 - 75, N = 10)

Exclusion criteria:

• Subjects with open cuts/sores on the gingiva, gingiva infection, or any contagious gingiva condition

Group 4:

Inclusion criteria:

• Mild or moderate keratoconus subjects (age 18 - 40, N = 20)

Exclusion criteria:

• Subjects with K-max above 60 diopters (Pentacam imaging) are excluded