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 Table of Contents  
OPHTHALMIC IMAGE
Year : 2022  |  Volume : 2  |  Issue : 2  |  Page : 604

Double standards in corneal epithelial compensation


1 Department of Cornea and Refractive Surgery, Sankara Nethralaya, Medical Research Foundation, Chennai, Tamil Nadu, India
2 Department of Optometry, Sankara Nethralaya, Medical Research Foundation, Chennai, Tamil Nadu, India
3 Department of Clinical Cornea Fellow, Sankara Nethralaya, Medical Research Foundation, Chennai, Tamil Nadu, India

Date of Web Publication13-Apr-2022

Correspondence Address:
Radhika Natarajan
Sankara Nethralaya, Medical Research Foundation, 18, College Road, Chennai, Tamil Nadu - 600 006
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijo.IJO_2516_21

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How to cite this article:
Natarajan R, Balaji JJ, Pandey S. Double standards in corneal epithelial compensation. Indian J Ophthalmol Case Rep 2022;2:604

How to cite this URL:
Natarajan R, Balaji JJ, Pandey S. Double standards in corneal epithelial compensation. Indian J Ophthalmol Case Rep [serial online] 2022 [cited 2022 May 18];2:604. Available from: https://www.ijoreports.in/text.asp?2022/2/2/604/342960



Composite picture [Figure 1] shows multimodal imaging of different areas of post-fungal keratitis scar with thinning, in the same cornea. Anterior segment optical coherence tomography (AS-OCT) [Figure 1]a shows that surface contour over scar in one area is reasonably regular. So, the overlying epithelium is slightly thicker, yet regular. But the scar in another area has caused irregular surface contour. AS-OCT [Figure 1]b shows that the epithelium here has adjusted thickness to compensate the crater and make the surface even. This phenomenon is also seen in keratoconus.[1],[2] Clinical appearance of the scarred cornea is shown in [Figure 1]c. As the epithelial compensation is localized, epithelial mapping did not pick it up clearly [Figure 1]d.
Figure 1: (a) AS-OCT image with cursor measurements of regular epithelial layers overlying scar with thinning, but regular surface contour. (b) AS-OCT image with cursor measurements of epithelial compensation over scar with thinning, but irregular surface contour. (c) Clinical picture of the post-infectious keratitis scar. (d) Corneal epithelial mapping of both eyes of the patient

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  References Top

1.
Franco J, White CA, Kruh JN. Analysis of compensatory corneal epithelial thickness changes in keratoconus using corneal tomography. Cornea 2020;39:298-302.  Back to cited text no. 1
    
2.
Serrao S, Lombardo G, Calì C, Lombardo M. Role of corneal epithelial thickness mapping in the evaluation of keratoconus. Cont Lens Anterior Eye 2019;42:662-5.  Back to cited text no. 2
    


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