Corneal elevation in a large number of myopic Chinese patients

Jinglu Ying, Qinmei Wang, Michael W. Belin, Ting Wan, Shishi Lin, Yifan Feng, Rongrong Gao, Jinhai Huang

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Purpose To establish a normative database for corneal elevation in Chinese myopic patients who underwent refractive surgery, and analyze the association of corneal elevation with sex, age, and ocular parameters. Methods A total of 3000 eyes in 1500 patients were evaluated with the Pentacam. Anterior and posterior elevations were measured at the apex and thinnest point. Normative thresholds were defined according to the Tukey method. Univariate and multivariate analyses were performed to assess the association of corneal elevation with sex, age, and ocular parameters. Results Normal upper limits for corneal elevation in adult Chinese were 4.95 μm, 5.25 μm, 6.2 μm, and 11.0 μm at the anterior apex, anterior thinnest point, posterior apex, and posterior thinnest point, respectively. Thinner corneal pachymetry at the apex and greater anterior corneal astigmatism tended to show greater anterior corneal elevation values. Younger age, greater anterior corneal astigmatism, lower anterior and posterior keratometry, and shallower anterior chamber depth resulted in greater posterior corneal elevation values. Conclusions Locally derived thresholds may offer higher sensitivity and specificity when screening eyes for myopic refractive surgery, and keratoconic and post-orthokeratology eyes. Anterior and posterior corneal elevation at the apex and thinnest point were associated significantly with anterior corneal astigmatism, showing a positive correlation.

Original languageEnglish (US)
Pages (from-to)185-190
Number of pages6
JournalContact Lens and Anterior Eye
Issue number3
StatePublished - Jun 1 2016


  • Corneal elevation
  • Myopia
  • Normative database
  • Scheimpflug imaging

ASJC Scopus subject areas

  • Ophthalmology
  • Optometry


Dive into the research topics of 'Corneal elevation in a large number of myopic Chinese patients'. Together they form a unique fingerprint.

Cite this