Clinical outcomes of simultaneous phototherapeutic keratectomy and photoastigmatic keratectomy

Abstract This study was aimed to assess the outcomes of simultaneous phototherapeutic keratectomy (PTK) and photoastigmatic keratectomy (PAK), with special attention to astigmatic correction. We comprised 70 eyes of 70 patients who underwent simultaneous PTK and PAK in patients having granular corne...

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Autores principales:	Kazutaka Kamiya, Kana Yazaki, Wakako Ando, Masahide Takahashi, Nobuyuki Shoji
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f6a7bff3a162417b877a53ece9ec580f
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spelling	oai:doaj.org-article:f6a7bff3a162417b877a53ece9ec580f2021-12-02T14:29:04ZClinical outcomes of simultaneous phototherapeutic keratectomy and photoastigmatic keratectomy10.1038/s41598-021-89044-32045-2322https://doaj.org/article/f6a7bff3a162417b877a53ece9ec580f2021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89044-3https://doaj.org/toc/2045-2322Abstract This study was aimed to assess the outcomes of simultaneous phototherapeutic keratectomy (PTK) and photoastigmatic keratectomy (PAK), with special attention to astigmatic correction. We comprised 70 eyes of 70 patients who underwent simultaneous PTK and PAK in patients having granular corneal dystrophy and band keratopathy with refractive astigmatism of 1 diopter (D) or more. Preoperatively and 6 months postoperatively, we assessed corrected uncorrected distance visual acuity (UDVA), distance visual acuity (CDVA), manifest spherical equivalent, refractive astigmatism, corneal astigmatism, and higher-order aberrations (HOAs). LogMAR CDVA significantly improved, from 0.27 ± 0.27 preoperatively, to 0.13 ± 0.21 postoperatively (Paired t test, p < 0.001). LogMAR UDVA also significantly improved, from 0.70 ± 0.32 preoperatively, to 0.57 ± 0.41 postoperatively (p = 0.043). Refractive astigmatism significantly decreased, from 2.12 ± 0.95 D preoperatively, to 0.89 ± 0.81 D postoperatively (p < 0.001). Corneal astigmatism also significantly decreased, from 2.17 ± 0.90 D preoperatively, to 1.08 ± 0.71 D postoperatively (p < 0.001). Corneal HOAs did not significantly change, from 0.54 ± 0.30 µm preoperatively, to 0.48 ± 0.20 µm postoperatively (p = 0.140). No significant complications occurred in any eye. Simultaneous PTK and PAK treatment is effective not only for improving visual acuity, but also for reducing astigmatism.Kazutaka KamiyaKana YazakiWakako AndoMasahide TakahashiNobuyuki ShojiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-5 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kazutaka Kamiya Kana Yazaki Wakako Ando Masahide Takahashi Nobuyuki Shoji Clinical outcomes of simultaneous phototherapeutic keratectomy and photoastigmatic keratectomy
description	Abstract This study was aimed to assess the outcomes of simultaneous phototherapeutic keratectomy (PTK) and photoastigmatic keratectomy (PAK), with special attention to astigmatic correction. We comprised 70 eyes of 70 patients who underwent simultaneous PTK and PAK in patients having granular corneal dystrophy and band keratopathy with refractive astigmatism of 1 diopter (D) or more. Preoperatively and 6 months postoperatively, we assessed corrected uncorrected distance visual acuity (UDVA), distance visual acuity (CDVA), manifest spherical equivalent, refractive astigmatism, corneal astigmatism, and higher-order aberrations (HOAs). LogMAR CDVA significantly improved, from 0.27 ± 0.27 preoperatively, to 0.13 ± 0.21 postoperatively (Paired t test, p < 0.001). LogMAR UDVA also significantly improved, from 0.70 ± 0.32 preoperatively, to 0.57 ± 0.41 postoperatively (p = 0.043). Refractive astigmatism significantly decreased, from 2.12 ± 0.95 D preoperatively, to 0.89 ± 0.81 D postoperatively (p < 0.001). Corneal astigmatism also significantly decreased, from 2.17 ± 0.90 D preoperatively, to 1.08 ± 0.71 D postoperatively (p < 0.001). Corneal HOAs did not significantly change, from 0.54 ± 0.30 µm preoperatively, to 0.48 ± 0.20 µm postoperatively (p = 0.140). No significant complications occurred in any eye. Simultaneous PTK and PAK treatment is effective not only for improving visual acuity, but also for reducing astigmatism.
format	article
author	Kazutaka Kamiya Kana Yazaki Wakako Ando Masahide Takahashi Nobuyuki Shoji
author_facet	Kazutaka Kamiya Kana Yazaki Wakako Ando Masahide Takahashi Nobuyuki Shoji
author_sort	Kazutaka Kamiya
title	Clinical outcomes of simultaneous phototherapeutic keratectomy and photoastigmatic keratectomy
title_short	Clinical outcomes of simultaneous phototherapeutic keratectomy and photoastigmatic keratectomy
title_full	Clinical outcomes of simultaneous phototherapeutic keratectomy and photoastigmatic keratectomy
title_fullStr	Clinical outcomes of simultaneous phototherapeutic keratectomy and photoastigmatic keratectomy
title_full_unstemmed	Clinical outcomes of simultaneous phototherapeutic keratectomy and photoastigmatic keratectomy
title_sort	clinical outcomes of simultaneous phototherapeutic keratectomy and photoastigmatic keratectomy
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/f6a7bff3a162417b877a53ece9ec580f
work_keys_str_mv	AT kazutakakamiya clinicaloutcomesofsimultaneousphototherapeutickeratectomyandphotoastigmatickeratectomy AT kanayazaki clinicaloutcomesofsimultaneousphototherapeutickeratectomyandphotoastigmatickeratectomy AT wakakoando clinicaloutcomesofsimultaneousphototherapeutickeratectomyandphotoastigmatickeratectomy AT masahidetakahashi clinicaloutcomesofsimultaneousphototherapeutickeratectomyandphotoastigmatickeratectomy AT nobuyukishoji clinicaloutcomesofsimultaneousphototherapeutickeratectomyandphotoastigmatickeratectomy
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Clinical outcomes of simultaneous phototherapeutic keratectomy and photoastigmatic keratectomy

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