Pentacam-based phototherapeutic keratectomy outcome in superficial corneal opacities

Mohammad A RashadOphthalmology Department, Faculty of Medicine, Ain Shams University, Cairo, EgyptPurpose: This study aimed to evaluate the effectiveness of phototherapeutic keratectomy (PTK) as an alternative treatment to keratoplasty using the Pentacam to assess depth of dense opacities.Methodolog...

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Autor principal:	Rashad MA
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2012
Materias:	Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/3dc8d908f68347df8599764972293d96
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spelling	oai:doaj.org-article:3dc8d908f68347df8599764972293d962021-12-02T08:34:18ZPentacam-based phototherapeutic keratectomy outcome in superficial corneal opacities1177-54671177-5483https://doaj.org/article/3dc8d908f68347df8599764972293d962012-06-01T00:00:00Zhttp://www.dovepress.com/pentacam-based-phototherapeutic-keratectomy-outcome-in-superficial-cor-a10111https://doaj.org/toc/1177-5467https://doaj.org/toc/1177-5483Mohammad A RashadOphthalmology Department, Faculty of Medicine, Ain Shams University, Cairo, EgyptPurpose: This study aimed to evaluate the effectiveness of phototherapeutic keratectomy (PTK) as an alternative treatment to keratoplasty using the Pentacam to assess depth of dense opacities.Methodology: PTK was performed in eleven eyes of ten patients with superficial corneal opacities after assessment by Scheimpflug images of the Pentacam for central corneal thickness (CCT) and opacity level and depth.Results: The best-corrected spectacle visual acuity (BCSVA) significantly improved. The preoperative mean logMAR was 0.85 (0.14 decimal equivalent, 6/42 Snellen&#39;s equivalent), and the final postoperative mean logMAR was 0.58 (0.26 decimal equivalent, 6/23 Snellen&#39;s equivalent). The mean preoperative CCT was 465.64 &plusmn; 71.94 &micro;m. The mean programmed ablation depth was 142.09 &plusmn; 47.58 &micro;m. The programmed ablation depth was correlated to mean logMAR early (1 month) and not correlated later (6 months). None of the eyes lost lines of BCSVA or developed serious complications, such as keratectasia, delayed epithelialization, or corneal melting.Conclusion: Corneal scars extending beyond the anterior one-fifth of the cornea can be treated safely and effectively by PTK due to the smoothing effect, with reduction of the cylinder rather than complete opacity removal. This can decrease the need for keratoplasty.Keywords: phototherapeutic keratectomy, PTK, corneal opacities, PentacamRashad MADove Medical PressarticleOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2012, Iss default, Pp 885-894 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ophthalmology RE1-994
spellingShingle	Ophthalmology RE1-994 Rashad MA Pentacam-based phototherapeutic keratectomy outcome in superficial corneal opacities
description	Mohammad A RashadOphthalmology Department, Faculty of Medicine, Ain Shams University, Cairo, EgyptPurpose: This study aimed to evaluate the effectiveness of phototherapeutic keratectomy (PTK) as an alternative treatment to keratoplasty using the Pentacam to assess depth of dense opacities.Methodology: PTK was performed in eleven eyes of ten patients with superficial corneal opacities after assessment by Scheimpflug images of the Pentacam for central corneal thickness (CCT) and opacity level and depth.Results: The best-corrected spectacle visual acuity (BCSVA) significantly improved. The preoperative mean logMAR was 0.85 (0.14 decimal equivalent, 6/42 Snellen&#39;s equivalent), and the final postoperative mean logMAR was 0.58 (0.26 decimal equivalent, 6/23 Snellen&#39;s equivalent). The mean preoperative CCT was 465.64 &plusmn; 71.94 &micro;m. The mean programmed ablation depth was 142.09 &plusmn; 47.58 &micro;m. The programmed ablation depth was correlated to mean logMAR early (1 month) and not correlated later (6 months). None of the eyes lost lines of BCSVA or developed serious complications, such as keratectasia, delayed epithelialization, or corneal melting.Conclusion: Corneal scars extending beyond the anterior one-fifth of the cornea can be treated safely and effectively by PTK due to the smoothing effect, with reduction of the cylinder rather than complete opacity removal. This can decrease the need for keratoplasty.Keywords: phototherapeutic keratectomy, PTK, corneal opacities, Pentacam
format	article
author	Rashad MA
author_facet	Rashad MA
author_sort	Rashad MA
title	Pentacam-based phototherapeutic keratectomy outcome in superficial corneal opacities
title_short	Pentacam-based phototherapeutic keratectomy outcome in superficial corneal opacities
title_full	Pentacam-based phototherapeutic keratectomy outcome in superficial corneal opacities
title_fullStr	Pentacam-based phototherapeutic keratectomy outcome in superficial corneal opacities
title_full_unstemmed	Pentacam-based phototherapeutic keratectomy outcome in superficial corneal opacities
title_sort	pentacam-based phototherapeutic keratectomy outcome in superficial corneal opacities
publisher	Dove Medical Press
publishDate	2012
url	https://doaj.org/article/3dc8d908f68347df8599764972293d96
work_keys_str_mv	AT rashadma pentacambasedphototherapeutickeratectomyoutcomeinsuperficialcornealopacities
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Pentacam-based phototherapeutic keratectomy outcome in superficial corneal opacities

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