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Kröger L, Spitzer MS, Linke SJ. [Corneal tattooing for cosmetic impairment]. Ophthalmologie 2024; 121:320-322. [PMID: 38177773 DOI: 10.1007/s00347-023-01965-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 11/10/2023] [Accepted: 12/04/2023] [Indexed: 01/06/2024]
Affiliation(s)
- Lena Kröger
- Klinik für Augenheilkunde, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20251, Hamburg, Deutschland.
| | - Martin S Spitzer
- Klinik für Augenheilkunde, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20251, Hamburg, Deutschland
| | - Stephan J Linke
- Klinik für Augenheilkunde, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20251, Hamburg, Deutschland
- zentrumsehstärke, Augenarztpraxis am UKE, Martinistr. 64, 20251, Hamburg, Deutschland
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Moshirfar M, Masud M, Harvey DH, Payne C, Bruce E, Ronquillo YC, Hoopes PC. The Multifold Etiologies of Limbal Stem Cell Deficiency: A Comprehensive Review on the Etiologies and Additional Treatment Options for Limbal Stem Cell Deficiency. J Clin Med 2023; 12:4418. [PMID: 37445454 DOI: 10.3390/jcm12134418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 06/16/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Given the various ocular manifestations of limbal stem cell insufficiency, an awareness of the genetic, acquired, and immunological causes and associated additional treatments of limbal stem cell deficiency (LSCD) is essential for providers. We performed a comprehensive review of the literature on the various etiologies and specific therapies for LSCD. The resources utilized in this review included Medline (PubMed), Embase, and Google Scholar. All English-language articles and case reports published from November 1986 through to October 2022 were reviewed in this study. There were collectively 99 articles on these topics. No other exclusion criteria were applied. Depending on the etiology, ocular manifestations of limbal stem cell deficiency range from dry eye syndrome and redness to more severe outcomes, including corneal ulceration, ocular surface failure, and vision loss. Identifying the source of damage for LSCD is critical in the treatment process, given that therapy may extend beyond the scope of the standard protocol, including artificial tears, refractive surgery, and allogeneic stem cell transplants. This comprehensive review of the literature demonstrates the various genetic, acquired, and immunological causes of LSCD and the spectrum of supplemental therapies available.
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Affiliation(s)
- Majid Moshirfar
- Hoopes Vision Research Center, Hoopes Vision, Draper, UT 84020, USA
- John A. Moran Eye Center, School of Medicine, University of Utah, Salt Lake City, UT 84132, USA
- Utah Lions Eye Bank, Murray, UT 84107, USA
| | - Maliha Masud
- School of Medicine, University of Nevada Reno, Reno, NV 89557, USA
| | - Devon Hori Harvey
- College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Carter Payne
- Hoopes Vision Research Center, Hoopes Vision, Draper, UT 84020, USA
| | - Elayna Bruce
- McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | | | - Philip C Hoopes
- Hoopes Vision Research Center, Hoopes Vision, Draper, UT 84020, USA
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Ying PX, Fu M, Huang C, Li ZH, Mao QY, Fu S, Jia XH, Cao YC, Hong LB, Cai LY, Guo X, Liu RB, Meng FK, Yi GG. Profile of biological characterizations and clinical application of corneal stem/progenitor cells. World J Stem Cells 2022; 14:777-797. [PMID: 36483848 PMCID: PMC9724387 DOI: 10.4252/wjsc.v14.i11.777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 11/08/2022] [Accepted: 11/23/2022] [Indexed: 12/13/2022] Open
Abstract
Corneal stem/progenitor cells are typical adult stem/progenitor cells. The human cornea covers the front of the eyeball, which protects the eye from the outside environment while allowing vision. The location and function demand the cornea to maintain its transparency and to continuously renew its epithelial surface by replacing injured or aged cells through a rapid turnover process in which corneal stem/progenitor cells play an important role. Corneal stem/progenitor cells include mainly corneal epithelial stem cells, corneal endothelial cell progenitors and corneal stromal stem cells. Since the discovery of corneal epithelial stem cells (also known as limbal stem cells) in 1971, an increasing number of markers for corneal stem/progenitor cells have been proposed, but there is no consensus regarding the definitive markers for them. Therefore, the identification, isolation and cultivation of these cells remain challenging without a unified approach. In this review, we systematically introduce the profile of biological characterizations, such as anatomy, characteristics, isolation, cultivation and molecular markers, and clinical applications of the three categories of corneal stem/progenitor cells.
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Affiliation(s)
- Pei-Xi Ying
- Department of Ophthalmology, Zhujiang Hospital, The Second Clinical School, Southern Medical University, Guangzhou 510280, Guangdong Province, China
| | - Min Fu
- Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, Guangdong Province, China
| | - Chang Huang
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai 200030, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai 200030, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai 200030, China
| | - Zhi-Hong Li
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Lab of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou 510550, Guangdong Province, China
| | - Qing-Yi Mao
- The Second Clinical School, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Sheng Fu
- Hengyang Medical School, The University of South China, Hengyang 421001, Hunan Province, China
| | - Xu-Hui Jia
- The Second Clinical School, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Yu-Chen Cao
- The Second Clinical School, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Li-Bing Hong
- The Second Clinical School, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Li-Yang Cai
- The Second Clinical School, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Xi Guo
- Medical College of Rehabilitation, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Ru-Bing Liu
- The Second Clinical School, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Fan-ke Meng
- Emergency Department, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, Guangdong Province, China
| | - Guo-Guo Yi
- Department of Ophthalmology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong Province, China
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Ramasubramanian VS, Meenatchi Sundaram S, Thomas R, Ramesh SV, Raghuvir Pai B, Hazarika M, Abdul Khader SM, Poojary RG, Girish H, Crasto VS, Thomas BB. Finite Element Analysis of Cornea and Lid Wiper during Blink, with and without Contact Lens. J Ophthalmol 2022; 2022:1-13. [PMID: 35620413 PMCID: PMC9129998 DOI: 10.1155/2022/7930334] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 04/26/2022] [Indexed: 11/18/2022] Open
Abstract
Ocular surface disorders such as Lid Wiper Epitheliopathy (LWE), Superior Epithelial Arcuate Lesion (SEAL), and contact lens-induced Limbal Stem Cell Deficiency (LSCD) as well as Superior Limbic Keratoconjunctivitis (SLK) affect one’s quality of life. Hence, it is imperative to investigate the underlying causes of these ocular surface disorders. During blink, the undersurface of the eyelid tends to interact with the cornea and the conjunctiva. The presence of a contact lens can add to the biomechanical frictional changes on these surfaces. To estimate these changes with and without a contact lens, a finite element model (FEM) of the eyelid wiper, eyeball, and contact lens was developed using COMSOL Multiphysics. Biomechanical properties such as von Mises stress (VMS) and displacement were calculated. Our study concluded that (a) maximum VMS was observed in the lid wiper in the absence of contact lens in the eye and (b) maximum VMS was observed in the superior 1.3 mm of the cornea in the presence of the contact lens in the eye. Thus, the development of friction-induced ocular surface disorders such as LWE, SLK, SEAL, and LSCD could be attributed to increased VMS. FEA is a useful simulation tool that helps us to understand the effect of blink on a normal eye with and without CL.
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