Pigmented corneal ring associated with orthokeratology in caucasians : case reports
Main Author: | |
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Publication Date: | 2012 |
Other Authors: | , , , |
Format: | Article |
Language: | eng |
Source: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Download full: | http://hdl.handle.net/1822/20716 |
Summary: | BACKGROUND: The aim was to report the appearance of a pigmented ring in both eyes of two patients undergoing overnight orthokeratology. METHODS: Two Caucasian patients, one male and one female, were fitted with orthokeratology lenses to correct myopia between -2.00 and -2.50 DS with Paragon corneal refractive therapy lenses worn overnight. Treatment was successful in both patients achieving uncorrected vision of 6/6 or better monocularly under high (100 per cent) and low (10 per cent) contrast conditions. RESULTS: At the six-month visit both patients presented with pigmented rings under slitlamp examination in both eyes. The location of the ring was consistent with the corneal area being flattened for myopic correction. Clinical examination was otherwise normal. CONCLUSIONS: Despite being initially reported in Asian patients from Hong Kong, a pigmented ring related to orthokeratology treatment is also present in Caucasian patients, reducing the potential role of an ethnic link. Further large-scale studies need to be done to estimate the actual incidence of this condition and the potential implications for corneal health. |
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Pigmented corneal ring associated with orthokeratology in caucasians : case reportsOrthokeratologyPigmented ringCaucasiantreatment zoneScience & TechnologyBACKGROUND: The aim was to report the appearance of a pigmented ring in both eyes of two patients undergoing overnight orthokeratology. METHODS: Two Caucasian patients, one male and one female, were fitted with orthokeratology lenses to correct myopia between -2.00 and -2.50 DS with Paragon corneal refractive therapy lenses worn overnight. Treatment was successful in both patients achieving uncorrected vision of 6/6 or better monocularly under high (100 per cent) and low (10 per cent) contrast conditions. RESULTS: At the six-month visit both patients presented with pigmented rings under slitlamp examination in both eyes. The location of the ring was consistent with the corneal area being flattened for myopic correction. Clinical examination was otherwise normal. CONCLUSIONS: Despite being initially reported in Asian patients from Hong Kong, a pigmented ring related to orthokeratology treatment is also present in Caucasian patients, reducing the potential role of an ethnic link. Further large-scale studies need to be done to estimate the actual incidence of this condition and the potential implications for corneal health.WileyUniversidade do MinhoGonzález-Méijome, José ManuelGonzález-Pérez, JavierGarcia-Porta, NeryDiaz-Rey, José AlbertoParafita, Manuel A.20122012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/20716engGonzález-Méijome JM, González-Pérez J, Garcia-Porta N, Diaz-Rey A, Parafita-Mato MA. Pigmented corneal ring associated with orthokeratology in Caucasians: case reports. Clin Exp Optom. 2012 Sep;95(5):548-52. doi:10.1111/j.1444-0938.2012.00751.x.0816-462210.1111/j.1444-0938.2012.00751.x22725834http://dx.doi.org/10.1111/j.1444-0938.2012.00751.xinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:25:36Zoai:repositorium.sdum.uminho.pt:1822/20716Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:19:51.680026Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Pigmented corneal ring associated with orthokeratology in caucasians : case reports |
title |
Pigmented corneal ring associated with orthokeratology in caucasians : case reports |
spellingShingle |
Pigmented corneal ring associated with orthokeratology in caucasians : case reports González-Méijome, José Manuel Orthokeratology Pigmented ring Caucasian treatment zone Science & Technology |
title_short |
Pigmented corneal ring associated with orthokeratology in caucasians : case reports |
title_full |
Pigmented corneal ring associated with orthokeratology in caucasians : case reports |
title_fullStr |
Pigmented corneal ring associated with orthokeratology in caucasians : case reports |
title_full_unstemmed |
Pigmented corneal ring associated with orthokeratology in caucasians : case reports |
title_sort |
Pigmented corneal ring associated with orthokeratology in caucasians : case reports |
author |
González-Méijome, José Manuel |
author_facet |
González-Méijome, José Manuel González-Pérez, Javier Garcia-Porta, Nery Diaz-Rey, José Alberto Parafita, Manuel A. |
author_role |
author |
author2 |
González-Pérez, Javier Garcia-Porta, Nery Diaz-Rey, José Alberto Parafita, Manuel A. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
González-Méijome, José Manuel González-Pérez, Javier Garcia-Porta, Nery Diaz-Rey, José Alberto Parafita, Manuel A. |
dc.subject.por.fl_str_mv |
Orthokeratology Pigmented ring Caucasian treatment zone Science & Technology |
topic |
Orthokeratology Pigmented ring Caucasian treatment zone Science & Technology |
description |
BACKGROUND: The aim was to report the appearance of a pigmented ring in both eyes of two patients undergoing overnight orthokeratology. METHODS: Two Caucasian patients, one male and one female, were fitted with orthokeratology lenses to correct myopia between -2.00 and -2.50 DS with Paragon corneal refractive therapy lenses worn overnight. Treatment was successful in both patients achieving uncorrected vision of 6/6 or better monocularly under high (100 per cent) and low (10 per cent) contrast conditions. RESULTS: At the six-month visit both patients presented with pigmented rings under slitlamp examination in both eyes. The location of the ring was consistent with the corneal area being flattened for myopic correction. Clinical examination was otherwise normal. CONCLUSIONS: Despite being initially reported in Asian patients from Hong Kong, a pigmented ring related to orthokeratology treatment is also present in Caucasian patients, reducing the potential role of an ethnic link. Further large-scale studies need to be done to estimate the actual incidence of this condition and the potential implications for corneal health. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012 2012-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/20716 |
url |
http://hdl.handle.net/1822/20716 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
González-Méijome JM, González-Pérez J, Garcia-Porta N, Diaz-Rey A, Parafita-Mato MA. Pigmented corneal ring associated with orthokeratology in Caucasians: case reports. Clin Exp Optom. 2012 Sep;95(5):548-52. doi:10.1111/j.1444-0938.2012.00751.x. 0816-4622 10.1111/j.1444-0938.2012.00751.x 22725834 http://dx.doi.org/10.1111/j.1444-0938.2012.00751.x |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
dc.publisher.none.fl_str_mv |
Wiley |
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Wiley |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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