Cornea / Refractive

Cornea Imaging and Biometry

  Image of patient’s corneal scar using the Insight 100’s Corneal Imaging Mode
Image of patient’s corneal scar using the Insight 100’s Corneal Imaging Mode

Corneal imaging is used for:

The Corneal Imaging mode uses an arc radius of 8-9 mm to match the cornea’s radius of curvature. The scan area is set to image the entire cornea using four equally spaced meridians. With the Insight 100’s ability to take accurate, micro-measurements in the cornea and anterior segment, even subtle keratoconus can be detected early, giving the patient the chance to receive the best care.

See what Dr. Dan Reinstein, of London Vision Clinic, has to say.

Cornea Solutions

Keratoconus Map

The ability to image the entire anterior segment in minute detail provides for deeper insights into the true anatomical structure of the cornea before and after refractive surgery.

Studies have shown that having this data available may enable clinicians to increase their LASIK candidacy rates by giving them the ability further evaluate and qualify patients who would normally have been ruled out from LASIK surgery due to suspicious front and back surface topography1,2.

IQ Laser Vision states that “we are able to achieve a very precise image of your eye that provides an accurate assessment of the type of vision correction that will be the best prescription for your personal eye care”. Read more from IQ Laser Vision here.

The epithelial thickness mapping that the ArcScan Insight® 100 System covers the full 10mm diameter of the cornea making it a viable tool in analysing and diagnosing potential underlying pathologies. The system’s integrated continuous scan mode allows clinicians to focus the scan easily on specific areas of interest to generate even more specific imaging. Furthermore, a deeper understanding of the various corneal layers may assist in the evaluation of potential keratoconus or other physical corneal aberrations.

Download the Keratoconus Analysis Brochure

In this document you will learn about:

  • the Insight 100 Keratoconus Analysis Summary Report layout
  • the Insight 100 Keratoconus Algorithm
  • Example images of the epithelial thickness
Keratoconus brochure

References:

[1] Reinstein DZ, Silverman RH, Raevsky T, et al. Arc-scanning very high-frequency digital ultrasound for 3D pachymetric mapping of the corneal epithelium and stroma in laser in situ keratomileusis. J Refract Surg. 2000;16:414-430.

[2] Reinstein, Archer, Gobbe. Stability of LASIK in corneas with topographic suspect keratoconus, with keratoconus excluded by epithelial thickness mapping
Journal of Refractive Surgery. 2009 Jul;25(7):569-577

[3] Reinstein, Archer, Silverman, Rondeau, Coleman ( February 2009): Correlation of anterior chamber angle and ciliary sulcus diameters with white to white corneal diameter in in high myopes using Artemis VHF digital ultrasound. Journal of Refractive Surgery, Vol 25, page 185 ff.