Impact of Latent Virus Infection in the Cornea on Corneal Healing after Small Incision Lenticule Extraction

The aim of the present study is to analyze the impact of cornea virus latent infection on corneal healing after small incision lenticule extraction (SMILE) and predict the positive rate of virus latent infection in corneal stroma. A total of 279 patients who underwent SMILE were included in this stu...

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Main Authors: Ming Liu, Wenting Song, Wen Gao, Lili Jiang, Hongbiao Pan, Dan Luo, Lei Shi
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Microorganisms
Subjects:
Online Access:https://www.mdpi.com/2076-2607/11/10/2441
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author Ming Liu
Wenting Song
Wen Gao
Lili Jiang
Hongbiao Pan
Dan Luo
Lei Shi
author_facet Ming Liu
Wenting Song
Wen Gao
Lili Jiang
Hongbiao Pan
Dan Luo
Lei Shi
author_sort Ming Liu
collection DOAJ
description The aim of the present study is to analyze the impact of cornea virus latent infection on corneal healing after small incision lenticule extraction (SMILE) and predict the positive rate of virus latent infection in corneal stroma. A total of 279 patients who underwent SMILE were included in this study. Fluorescence quantitative PCR was used to detect virus infection in the lenticules, which were taken from the corneal stroma during SMILE. Herpes simplex virus type 1 (HSV-1), herpes simplex virus type 2 (HSV-2), Epstein–Barr virus (EBV), and cytomegalovirus (CMV) were detected. Postoperative visual acuity, spherical equivalent, intraocular pressure, corneal curvature (Kf and Ks), corneal transparency, and corneal staining were compared between the virus-positive group and the virus-negative group. The number of corneal stromal cells and inflammatory cells, corneal nerve fiber density (CNFD), corneal nerve branch density (CNBD), corneal nerve fiber length (CNFL), corneal total branch density (CTBD), and corneal nerve fiber width (CNFW) were evaluated using an in vivo confocal microscope. Out of 240 herpes simplex virus (HSV) tested samples, 11 (4.58%) were positive, among which 5 (2.08%) were HSV-1-positive and 6 (2.50%) were HSV-2-positive. None of the 91 CMV- and EBV-tested samples were positive. There was no statistical significance in the postoperative visual acuity, spherical equivalent, intraocular pressure, Kf and Ks, corneal transparency, corneal staining, the number of corneal stromal cells and inflammatory cells, CNFD, CNBD, CNFL, CTBD, and CNFW between the virus-positive and virus-negative groups (<i>p</i> > 0.05). In conclusion, there is a certain proportion of latent HSV infection in the myopia population. Femtosecond lasers are less likely to activate a latent infection of HSV in the cornea. The latent infection of HSV has no significant impact on corneal healing after SMILE.
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spelling doaj.art-70331e17d9324f4cbd4f64a7341ceee42023-11-19T17:26:49ZengMDPI AGMicroorganisms2076-26072023-09-011110244110.3390/microorganisms11102441Impact of Latent Virus Infection in the Cornea on Corneal Healing after Small Incision Lenticule ExtractionMing Liu0Wenting Song1Wen Gao2Lili Jiang3Hongbiao Pan4Dan Luo5Lei Shi6Department of Ophthalmology, Anhui Second Provincial People’s Hospital, Dangshan Road 1868, Hefei 230041, ChinaDepartment of Ophthalmology, The First Affiliated Hospital of USTC, Hefei 230001, ChinaDepartment of Ophthalmology, Anhui Second Provincial People’s Hospital, Dangshan Road 1868, Hefei 230041, ChinaDepartment of Ophthalmology, Anhui Second Provincial People’s Hospital, Dangshan Road 1868, Hefei 230041, ChinaDepartment of Ophthalmology, Anhui Second Provincial People’s Hospital, Dangshan Road 1868, Hefei 230041, ChinaDepartment of Ophthalmology, The First Affiliated Hospital of USTC, Hefei 230001, ChinaDepartment of Ophthalmology, Anhui Second Provincial People’s Hospital, Dangshan Road 1868, Hefei 230041, ChinaThe aim of the present study is to analyze the impact of cornea virus latent infection on corneal healing after small incision lenticule extraction (SMILE) and predict the positive rate of virus latent infection in corneal stroma. A total of 279 patients who underwent SMILE were included in this study. Fluorescence quantitative PCR was used to detect virus infection in the lenticules, which were taken from the corneal stroma during SMILE. Herpes simplex virus type 1 (HSV-1), herpes simplex virus type 2 (HSV-2), Epstein–Barr virus (EBV), and cytomegalovirus (CMV) were detected. Postoperative visual acuity, spherical equivalent, intraocular pressure, corneal curvature (Kf and Ks), corneal transparency, and corneal staining were compared between the virus-positive group and the virus-negative group. The number of corneal stromal cells and inflammatory cells, corneal nerve fiber density (CNFD), corneal nerve branch density (CNBD), corneal nerve fiber length (CNFL), corneal total branch density (CTBD), and corneal nerve fiber width (CNFW) were evaluated using an in vivo confocal microscope. Out of 240 herpes simplex virus (HSV) tested samples, 11 (4.58%) were positive, among which 5 (2.08%) were HSV-1-positive and 6 (2.50%) were HSV-2-positive. None of the 91 CMV- and EBV-tested samples were positive. There was no statistical significance in the postoperative visual acuity, spherical equivalent, intraocular pressure, Kf and Ks, corneal transparency, corneal staining, the number of corneal stromal cells and inflammatory cells, CNFD, CNBD, CNFL, CTBD, and CNFW between the virus-positive and virus-negative groups (<i>p</i> > 0.05). In conclusion, there is a certain proportion of latent HSV infection in the myopia population. Femtosecond lasers are less likely to activate a latent infection of HSV in the cornea. The latent infection of HSV has no significant impact on corneal healing after SMILE.https://www.mdpi.com/2076-2607/11/10/2441lenticulefemtosecond laser small incision lenticule extractionvirus infectioncorneal healing
spellingShingle Ming Liu
Wenting Song
Wen Gao
Lili Jiang
Hongbiao Pan
Dan Luo
Lei Shi
Impact of Latent Virus Infection in the Cornea on Corneal Healing after Small Incision Lenticule Extraction
Microorganisms
lenticule
femtosecond laser small incision lenticule extraction
virus infection
corneal healing
title Impact of Latent Virus Infection in the Cornea on Corneal Healing after Small Incision Lenticule Extraction
title_full Impact of Latent Virus Infection in the Cornea on Corneal Healing after Small Incision Lenticule Extraction
title_fullStr Impact of Latent Virus Infection in the Cornea on Corneal Healing after Small Incision Lenticule Extraction
title_full_unstemmed Impact of Latent Virus Infection in the Cornea on Corneal Healing after Small Incision Lenticule Extraction
title_short Impact of Latent Virus Infection in the Cornea on Corneal Healing after Small Incision Lenticule Extraction
title_sort impact of latent virus infection in the cornea on corneal healing after small incision lenticule extraction
topic lenticule
femtosecond laser small incision lenticule extraction
virus infection
corneal healing
url https://www.mdpi.com/2076-2607/11/10/2441
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