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. 2020 Mar 23:14:905-913.
doi: 10.2147/OPTH.S245492. eCollection 2020.

Prevalence of Subclinical Keratoconus Among Pediatric Egyptian Population with Astigmatism

Mohamed Karim Sidky  1 , Dina Hosameldin Hassanein  1 , Sherif A Eissa  1 , Yehia M Salah  1 , Nancy M Lotfy  1
Affiliations

Prevalence of Subclinical Keratoconus Among Pediatric Egyptian Population with Astigmatism

Mohamed Karim Sidky et al. Clin Ophthalmol. .

Abstract

Purpose: To report the prevalence of subclinical keratoconus (KC), and KC suspects, in pediatric Egyptian population with astigmatic error ≥2 diopters (D), with the use of CSO Sirius tomographer.

Methods: A cross-sectional study that included all the children aged 6-18 years with an astigmatic error of ≥2 D who attended the pediatric ophthalmology clinic for routine checkups during the period between March 2017 and December 2017 was done. All subjects underwent comprehensive ophthalmic examination, and corneal imaging using CSO Sirius instrument, a pentacam with Scheimpflug technology.

Results: There were 547 subjects enrolled in our study. Mean age was 11.34 ± 3.03 (range 6-18) years. There were 278 subjects (50.8%) between 6 and 12 years, and 269 subjects (49.2%) between 12 and 18 years. Males represented 48.4% and females represented 51.6% of patients. Among all the subjects, there were 26 (4.8%) KC patients, 24 (4.4%) KC suspects, and 497 (90.9%) were normal.

Conclusion: Prevalence of subclinical KC among pediatric age group with astigmatism is relatively high, hence the importance of corneal tomography screening of children with astigmatic error ≥2 D.

Keywords: Egypt; Scheimpflug; Sirius; astigmatism; pediatric keratoconus; subclinical keratoconus.

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Conflict of interest statement

The authors report no funding and no conflicts of interest in this work.

Figures

Figure 1
Figure 1
CSO Sirius scan image of a case of KC.
Figure 2
Figure 2
CSO Sirius scan image of a case of KC suspect.
Figure 3
Figure 3
CSO Sirius scan image of a normal eye.
See this image and copyright information in PMC

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