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Comparison of and correlation between anterior and posterior corneal elevation maps in normal eyes and keratoconus-suspect eyes.
J Cataract Refract Surg. 2008 May; 34(5):789-95.JC

Abstract

PURPOSE

To compare the anterior and posterior corneal elevation maps between keratoconus-suspect eyes and normal eyes.

SETTING

Rothschild Foundation, AP-HP, University Paris VII, Hôpital Bichat Claude Bernard, Paris, France.

METHODS

The anterior and posterior corneal surface elevations were analyzed and compared in 60 normal myopic patients and 48 keratoconus-suspect patients. The anterior and posterior best-fit sphere radii, central and thinnest corneal pachymetries, anterior and posterior aconic shape parameters (aconic radius, aconic asphericity, aconic toricity), and anterior and posterior elevation in the 1.0 mm radius zone were analyzed. The correlations between elevation and aconic shape parameters between the anterior and posterior surfaces were compared.

RESULTS

The mean central and thinnest pachymetry values were significantly lower in keratoconus-suspect eyes (P<.0001). Compared with normal eyes, keratoconus-suspect eyes had significantly increased anterior toricity (P = .0002) and posterior toricity (P<.0001), more negative asphericity (P = .042), and higher posterior elevation (P<.0001). The correlation between aconic toricity and the anterior and posterior corneal surfaces was better in keratoconus-suspect eyes than in normal eyes. Aconic asphericity and apical curvature were less correlated in keratoconus-suspect eyes than in normal eyes.

CONCLUSIONS

The posterior corneal elevation and the corneal thickness values were different in keratoconus-suspect eyes. The correlation between the anterior and posterior corneal aconic shapes was between keratoconus-suspect eyes and normal eyes.

Authors+Show Affiliations

Ophthalmology, Rothschild Foundation, Paris, France.No affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

18471634

Citation

Schlegel, Zuzana, et al. "Comparison of and Correlation Between Anterior and Posterior Corneal Elevation Maps in Normal Eyes and Keratoconus-suspect Eyes." Journal of Cataract and Refractive Surgery, vol. 34, no. 5, 2008, pp. 789-95.
Schlegel Z, Hoang-Xuan T, Gatinel D. Comparison of and correlation between anterior and posterior corneal elevation maps in normal eyes and keratoconus-suspect eyes. J Cataract Refract Surg. 2008;34(5):789-95.
Schlegel, Z., Hoang-Xuan, T., & Gatinel, D. (2008). Comparison of and correlation between anterior and posterior corneal elevation maps in normal eyes and keratoconus-suspect eyes. Journal of Cataract and Refractive Surgery, 34(5), 789-95. https://doi.org/10.1016/j.jcrs.2007.12.036
Schlegel Z, Hoang-Xuan T, Gatinel D. Comparison of and Correlation Between Anterior and Posterior Corneal Elevation Maps in Normal Eyes and Keratoconus-suspect Eyes. J Cataract Refract Surg. 2008;34(5):789-95. PubMed PMID: 18471634.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of and correlation between anterior and posterior corneal elevation maps in normal eyes and keratoconus-suspect eyes. AU - Schlegel,Zuzana, AU - Hoang-Xuan,Thanh, AU - Gatinel,Damien, PY - 2007/09/05/received PY - 2007/12/27/accepted PY - 2008/5/13/pubmed PY - 2008/6/17/medline PY - 2008/5/13/entrez SP - 789 EP - 95 JF - Journal of cataract and refractive surgery JO - J Cataract Refract Surg VL - 34 IS - 5 N2 - PURPOSE: To compare the anterior and posterior corneal elevation maps between keratoconus-suspect eyes and normal eyes. SETTING: Rothschild Foundation, AP-HP, University Paris VII, Hôpital Bichat Claude Bernard, Paris, France. METHODS: The anterior and posterior corneal surface elevations were analyzed and compared in 60 normal myopic patients and 48 keratoconus-suspect patients. The anterior and posterior best-fit sphere radii, central and thinnest corneal pachymetries, anterior and posterior aconic shape parameters (aconic radius, aconic asphericity, aconic toricity), and anterior and posterior elevation in the 1.0 mm radius zone were analyzed. The correlations between elevation and aconic shape parameters between the anterior and posterior surfaces were compared. RESULTS: The mean central and thinnest pachymetry values were significantly lower in keratoconus-suspect eyes (P<.0001). Compared with normal eyes, keratoconus-suspect eyes had significantly increased anterior toricity (P = .0002) and posterior toricity (P<.0001), more negative asphericity (P = .042), and higher posterior elevation (P<.0001). The correlation between aconic toricity and the anterior and posterior corneal surfaces was better in keratoconus-suspect eyes than in normal eyes. Aconic asphericity and apical curvature were less correlated in keratoconus-suspect eyes than in normal eyes. CONCLUSIONS: The posterior corneal elevation and the corneal thickness values were different in keratoconus-suspect eyes. The correlation between the anterior and posterior corneal aconic shapes was between keratoconus-suspect eyes and normal eyes. SN - 0886-3350 UR - https://www.unboundmedicine.com/medline/citation/18471634/Comparison_of_and_correlation_between_anterior_and_posterior_corneal_elevation_maps_in_normal_eyes_and_keratoconus_suspect_eyes_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0886-3350(08)00160-0 DB - PRIME DP - Unbound Medicine ER -