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Chapter-18 Mouse Sign for Inverted Pre-Descemet’s Endothelial Keratoplasty Grafts

BOOK TITLE: Pre-Descemet’s Endothelial Keratoplasty (PDEK)

Author
1. Agarwal Amar
2. Kumar Dhivya Ashok
ISBN
9789352703036
DOI
10.5005/jp/books/14154_19
Edition
1/e
Publishing Year
2018
Pages
5
Author Affiliations
1. Dr. Agarwal’s Group of Eye Hospitals Chennai, India, Dr Agarwal’s Group of Eye Hospitals and Eye Research Centre, 19 Cathedral Road Chennai, Tamil Nadu, India, Dr Agarwal’s Eye Hospital, 9, Cathedral Road, C,hennai, India, Dr Agarwal’s Eye Institute, 13 Cathedral Road, Chennai, India, Dr. Agarwal’s Eye Hospital, 19 Cathedral Road, Chennai, India, 15 Eagle Street, Langford Town Bangalore, India, Villa No. 2, Roundhouse 3, Al Wasl Road, Dubai PB 9168, Dubai, Dr. Agarwal’s Eye Hospital, 19 Cathedral Road, Chennai, India, 15 Eagle Street, Langford Town Bangalore, India, Villa No. 2, Roundhouse 3, Al Wasl Road, Dubai PB, Dubai, Dr Agarwal’s Group of Eye Hospitals, and Eye Research Centre, Chennai, India., Dr. Agarwal’s group of eye hospitals at Chennai, Bangalore, Jaipur, Salem and Trichy, India, Dr. Agarwal’s Eye Hospital, 19, Cathedral Road, Chennai-600086, India, Dr Agarwal’s Group of Eye Hospitals and Eye Research Centre 19, Cathedral Road, Chennai - 600 086, India, Dr Agarwal’s Group of
2. Dr Agarwal’s Group of Eye Hospitals and Eye Research Centre, 19 Cathedral Road, Chennai, India, Dr. Agarwal’s Eye Hospital and Eye Research Centre, Chennai, India, Dr Agarwal’s Group of Eye Hospitals and Eye Research Center, Chennai, Tamil Nadu, India
Chapter keywords
Mouse sign, optical coherence tomography, OCT, pre-Descemet’s endothelial keratoplasty, PDEK, Fourier domain optical coherence tomography, FDOCT, graft adhesion

Abstract

This chapter describes a unique configuration in the form of a computer mouse which is seen in patients with tight scroll which often is difficult to unroll and require graft removal. Mouse sign is described in relation to the configuration of a computer mouse. This sign is seen only by optical coherence tomography (OCT), preferably by spectral or Fourier domain OCT. The spectral domain OCT has resolution of 5 μm and shows clear pattern with endothelial graft. There are various factors which can influence graft adhesion; that can be both intraoperative and postoperative factors. Similarly, both the donor and the host conditions also contribute equally in stability of the graft. A stable well-formed anterior chamber morphology and adequate pressure in the chamber is achieved by 80% air fill.

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