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Fourier-domain optical coherence tomography-guided phototherapeutic keratectomy for the treatment of anterior corneal scarring

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International Journal of Ophthalmology(English edition) 2020年第11期13卷 1720-1726页

作者： Yu-Li Yang Qian Jian Bo Liu Ke Wang Yu-Juan Chen Lian Tan Mei-Jun Pu Yong Liu Southwest Hospital/Southwest Eye Hospital Third Military Medical University(Anny Medical University)Chongqing 400038China Chongqing Aier Mega Eye Hospital Aier Eye Hospital GroupChongqing 400060China

AIM:To evaluate the safety,visual and anatomic outcomes of fourier-domain optical coherence tomography(FD-OCT)-guided excimer laser phototherapeutic keratectomy(PTK)combined with photorefractive keratectomy(PRK)surgery in treating anterior corneal ***:Clinical data of 23 eyes of 21 patients with anterior corneal scarring underwent FD-OCT-guided PTK and PRK from Dec.2014 to Jul.2016 were *** were assessed for preoperative and postoperative uncorrected visual acuity(UCVA),best spectacle-corrected visual acuity(BSCVA),contrast sensitivity(CS),FD-OCT,corneal topography and colour figures of anterior ***:The preoperative corneal pathologic conditions included viral keratitis(7 patients,7 eyes),band keratopathy(2 patients,4 eyes),corneal dystrophy(4 patients,4 eyes),traumatic corneal disease(2 patients,2 eyes)and corneal chemical injury(6 patients,6 eyes).Mean follow-up time was 10.65(range,3-19)***(in IogMAR)improved from a mean of 0.79(95%Cl,0.281.29)preoperatively to a mean of 0.45(95%Cl,0.29-0.62)postoperatively(P=0.021).BSCVA(in IogMAR)improved from 0.57(95%Cl,0.27-0.88)preoperatively to a mean of 0.28(95%Cl,0.15-0.41)postoperatively(P=0.001).corneal topographic indices postoperatively showed significant improvement in corneal cylinder(P=0.009),the surface regularity index(P=0.007)and surface asymmetry index(P=0.00).Postoperative spherical equivalent averaged-0.53 diopters(-1.49 to 0.42).No complications were associated with the ***:FD-OCT-guided PTK combined with PRK is safe and effective for the treatment of anterior corneal scarring by eliminating or reducing corneal opacities.

关键词： corneal scar phototherapeutic keratectomy fourier-domain optical coherence tomography corneal opacity corneal topographic indices

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corneal topographic changes and surgically induced astigmatism following combined phacoemulsification and 25-gauge vitrectomy

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International Journal of Ophthalmology(English edition) 2017年第1期10卷 72-76页

作者： Khulood Mohammed Sayed Mahmoud M.Farouk Takashi Katome Toshihiko Nagasawa Takeshi Naito Yoshinori MitamurA Department of Ophthalmology and Visual Neuroscience Instituteof Health BiosciencesUniversity of Tokushima GraduateSchool3-18-15 Kuramoto-choTokushima 770-8503Japan Department of Ophthalmology Sohag Faculty of MedicineSohag University82524 SohagEgypt

AIM： To evaluate corneal topographic changes and surgically induced astigmatism （SIA） after combined phacoemulsification and 25-gauge transconjunctival sutureless vitrectomy （25-G TSV）.METHODS： A retrospective study on 96 eyes of 87 patients who underwent combined phacoemulsification and 25-G TSV. The different topographic parameters and SIA were analyzed pre- and ***： There was no significant changes in corneal topographic parameters at different follow up periods. Only surface regularity index changed significantly in the 2nd postoperative week and then returned to baseline values thereafter. Mean SIA gradually decreased to reach 0.12 D by the 6th postoperative ***： corneal surface and astigmatic changes are insignificant in either early or late postoperative periods following combined phacoemulsification and 25-G TSV. The SIA was the minimum among previous reports on sutureless vitrectomy alone or combined with phacoemulsification. Improvement of SIA did not stop at the 3rd postoperative month but it continued till the 6th month postoperatively.

关键词： corneal topographic indices surgicallyinduced astigmatism 25-gauge sutureless vitrectomy phacoemulsification

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