Radius of curvature of the posterior surface of the cornea

Garner, LF; Owens, H; Yap, MK; Frith, MJ; Kinnear, RF

Abstract

The radius of curvature of the posterior surface of the cornea was measured in the vertical meridian for 120 children aged 6 to 17 years, using a Purkinje image method. The mean radius of curvature (+/-SD) was 6.42 +/- 0.31 mm, with a range from 5.62 to 7.22 mm. The ratio of anterior to posterior corneal radius was 1.210 +/- 0.045 or 0.827 +/- 0.029 when expressed as a reciprocal. There was a significant correlation between the anterior and posterior corneal radius (y = 0.798x + 0.228, r2 = 0.45). The study provides data that may be applied to a four-surface schematic eye.

• Journal Article Type: Article
• Acceptance Date: Jul 1, 1997
• Publication Date: Jul 1, 1997
• Journal: Optometry and vision science
• Print ISSN: 1040-5488
• Electronic ISSN: 1538-9235
• Publisher: Lippincott, Williams & Wilkins
• Peer Reviewed: Peer Reviewed
• Volume: 74
• Issue: 7
• Pages: 496-498
• Keywords: posterior corneal surface, Purkinje images, schematic eyes
• Public URL: https://uwe-repository.worktribe.com/output/1102211
• Publisher URL: https://journals.lww.com/optvissci/Abstract/1997/07000/Radius_of_Curvature_of_the_Posterior_Surface_of.16.aspx