Repeatability and Reproducibility of Lens Zonule Length Measurement Using ArcScan Insight 100

Repeatability and Reproducibility of Lens Zonule Length Measurement Using ArcScan Insight 100 Very High-frequency Digital Ultrasound

The purpose of this study is to evaluate the intra-examiner repeatability and inter-examiner reproducibility in lens zonule length measurements using very high-frequency (VHF) digital ultrasound (ArcScan Insight 100).

Inclusion Criteria:

• Subjects with no ocular disease except ametropia
• Subjects will be able to understand and willing to sign an informed consent

Exclusion Criteria:

• Previous ocular surgery
• Subjects not being able to tolerate or not willing to use pilocarpine eye drops
• Subjects has active ocular infection or inflammation
• Subjects not being able to look steadily
• Subjects not being able to open eyes wide in sterile saline even after topical anesthesia