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Photorefractive Keratectomy

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121. Impact of corneal cross-linking combined with photorefractive keratectomy on blurring strength Full Text available with Trip Pro

Impact of corneal cross-linking combined with photorefractive keratectomy on blurring strength The aim of this study was to evaluate the impact of corneal cross-linking combined with photorefractive keratectomy (PRK) on blurring strength.A total of 63 patients with keratoconus were recruited for this study, and two study groups were formed according to the therapeutic intervention: corneal collagen cross-linking (CxL) group (33 patients) received corneal cross-linking according to the Dresden (...) protocol, while the rest additionally received topography-guided photorefractive keratectomy (tCxL). The impact of surgical procedure on blurring strength was assessed by power vector analysis. Potential association between blurring strength and vision-specific quality of life was assessed using the National Eye Institute Visual Function Questionnaire (NEI-VFQ) 25 instrument.Blurring strength presented excellent correlation with NEI-VFQ scores both preoperatively and postoperatively (all P<0.01). Both

2016 Clinical ophthalmology (Auckland, N.Z.) Controlled trial quality: uncertain

122. Corneal-Wavefront guided transepithelial photorefractive keratectomy after corneal collagen cross linking in keratoconus Full Text available with Trip Pro

Corneal-Wavefront guided transepithelial photorefractive keratectomy after corneal collagen cross linking in keratoconus To evaluate the efficacy and safety of Corneal-Wavefront guided transepithelial photorefractive keratectomy (TransPRK) after corneal collagen cross linking (CXL) in keratoconic patients.In this retrospective, non-comparative, consecutive case series, 39 keratoconic eyes underwent Corneal-Wavefront guided TransPRK for the correction of aberrations at least 4 months after

2016 Journal of optometry

123. Comparison of Changes in Corneal Biomechanical Properties after Photorefractive Keratectomy and Small Incision Lenticule Extraction Full Text available with Trip Pro

Comparison of Changes in Corneal Biomechanical Properties after Photorefractive Keratectomy and Small Incision Lenticule Extraction To compare the postoperative biomechanical properties of the cornea after photorefractive keratectomy (PRK) and small incision lenticule extraction (SMILE) in eyes with low and moderate myopia.We retrospectively examined 42 eyes of 23 patients undergoing PRK and 42 eyes of 22 patients undergoing SMILE for the correction of low and moderate myopia. Corneal

2016 Turkish Journal of Ophthalmology

124. Stereoacuity after photorefractive keratectomy in myopia Full Text available with Trip Pro

Stereoacuity after photorefractive keratectomy in myopia Stereopsis, as a part of visual function, is the ability of differentiating between the two eyes' views (binocular disparity), due to the eyes' different positions. The aim of this study was to compare stereoscopic vision before and after photorefractive keratectomy (PRK) in myopia.In a prospective interventional case series study clinical trial, forty-eight myopic individuals (age range: 18-34 years) who had undergone PRK surgery

2016 Journal of current ophthalmology

125. Study of SAF312 as an Eye Drop for Treatment of Eye Pain Following Photorefractive Keratectomy (PRK) Surgery

Study of SAF312 as an Eye Drop for Treatment of Eye Pain Following Photorefractive Keratectomy (PRK) Surgery Study of SAF312 as an Eye Drop for Treatment of Eye Pain Following Photorefractive Keratectomy (PRK) Surgery - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (...) (100). Please remove one or more studies before adding more. Study of SAF312 as an Eye Drop for Treatment of Eye Pain Following Photorefractive Keratectomy (PRK) Surgery The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our for details. ClinicalTrials.gov Identifier: NCT02961062 Recruitment Status : Completed First Posted : November 10, 2016 Last

2016 Clinical Trials

126. Efficiency, Predictability and Security of the Trans-epithelial Photorefractive Keratectomy

Efficiency, Predictability and Security of the Trans-epithelial Photorefractive Keratectomy Efficiency, Predictability and Security of the Trans-epithelial Photorefractive Keratectomy - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more (...) studies before adding more. Efficiency, Predictability and Security of the Trans-epithelial Photorefractive Keratectomy (MYOPAS) The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our for details. ClinicalTrials.gov Identifier: NCT02893592 Recruitment Status : Completed First Posted : September 8, 2016 Last Update Posted : September 15, 2016 Sponsor

2016 Clinical Trials

127. Vector Analysis of 1-Year Astigmatic Outcomes From a Randomized Fellow Eye Comparison of Photorefractive Keratectomy Using 2 Excimer Laser Platforms. (Abstract)

Vector Analysis of 1-Year Astigmatic Outcomes From a Randomized Fellow Eye Comparison of Photorefractive Keratectomy Using 2 Excimer Laser Platforms. To compare the astigmatic outcomes of photorefractive keratectomy (PRK) with a wavefront-guided (WFG) and a wavefront-optimized (WFO) excimer laser performed on two different platforms.Setting: institutional.Prospective, randomized, fellow eye comparison clinical trial.A total of 142 eyes of 71 patients with myopia of 12 diopters (D) or less

2016 Eye & contact lens Controlled trial quality: uncertain

128. Visual and Refractive Outcomes of Photorefractive Keratectomy and Small Incision Lenticule Extraction (SMILE) for Myopia. (Abstract)

Visual and Refractive Outcomes of Photorefractive Keratectomy and Small Incision Lenticule Extraction (SMILE) for Myopia. To compare the refractive outcomes of small incision lenticule extraction (SMILE) with photorefractive keratectomy (PRK) using an aberration-free ablation profile.One eye of patients diagnosed as having myopia for bilateral refractive correction was randomly allocated to either PRK or SMILE. The primary outcome measures included refractive efficacy, predictability, safety

2016 Journal of Refractive Surgery Controlled trial quality: uncertain

129. Epithelial Thickness Profile Change After Combined Topography-Guided Transepithelial Photorefractive Keratectomy and Corneal Cross-linking in Treatment of Keratoconus. Full Text available with Trip Pro

Epithelial Thickness Profile Change After Combined Topography-Guided Transepithelial Photorefractive Keratectomy and Corneal Cross-linking in Treatment of Keratoconus. To evaluate corneal epithelial remodeling after topography-guided transepithelial photorefractive keratectomy (PRK) combined with corneal collagen cross-linking (CXL) in the treatment of keratoconus.Retrospective analysis of the epithelial thickness distribution changes in 53 keratoconic eyes of 44 patients. Manifest refraction

2016 Journal of Refractive Surgery

130. Goblet cell response after photorefractive keratectomy and laser in situ keratomileusis. Full Text available with Trip Pro

Goblet cell response after photorefractive keratectomy and laser in situ keratomileusis. To determine whether patients without dry eye preoperatively have an altered conjunctival goblet cell density and mucin secretion postoperatively and to explore what factors affect changes in goblet cell density and mucin secretion.The former Walter Reed Army Medical Center, Washington, DC, USA.Prospective nonrandomized clinical study.Impression cytology was used to determine conjunctival goblet cell (...) density before and 1 week, 1 month, and 3 months after photorefractive keratectomy (PRK) or laser in situ keratomileusis (LASIK). The McMonnies questionnaire, Schirmer test, tear breakup time, corneal sensitivity, rose bengal staining, and computerized videokeratoscopy were also performed to assess tear-film and ocular-surface health.The ratio of goblet cell to total cells changed postoperatively from baseline in both groups (P < .001). The most significant change was a median 29% decrease 1 month

2016 Journal of cataract and refractive surgery

131. Comparison of Simulated Keratometric Changes Following Wavefront-Guided and Wavefront-Optimized Myopic Photorefractive Keratectomy. (Abstract)

Comparison of Simulated Keratometric Changes Following Wavefront-Guided and Wavefront-Optimized Myopic Photorefractive Keratectomy. To determine the relationship between change in simulated keratometry and corrected refractive error in both wavefront-guided and wavefront-optimized myopic photorefractive keratectomy (PRK), and to determine whether there is a difference in this relationship between these two ablation profiles.Sixty-eight patients received wavefront-guided PRK in one eye

2016 Journal of Refractive Surgery Controlled trial quality: uncertain

132. Longitudinal comparison of femtosecond-assisted sub-Bowman keratomileusis versus photorefractive keratectomy for high myopia. (Abstract)

Longitudinal comparison of femtosecond-assisted sub-Bowman keratomileusis versus photorefractive keratectomy for high myopia. To longitudinally compare the visual and refractive outcomes and changes in corneal thickness between femtosecond-assisted sub-Bowmen keratomileusis (SBK) and photorefractive keratectomy (PRK) with mitomycin C in eyes with high myopia.Patients with spherical equivalent ≥6 dioptres (D) who underwent femtosecond-assisted SBK or PRK with mitomycin C were recruited. All

2016 British Journal of Ophthalmology

133. The Role of Aberrometry in Accommodative Spasm After Myopic Photorefractive Keratectomy. (Abstract)

The Role of Aberrometry in Accommodative Spasm After Myopic Photorefractive Keratectomy. To report the role of aberrometry in a case of accommodative spasm following myopic photorefractive keratectomy (PRK).Observational case report.One month following myopic PRK, a 33-year-old healthy woman complained of seeing multiple images and headache that interfered with her daily activities. Her corrected distance visual acuity (CDVA) was 20/40 in the right eye and 20/25 in the left eye with a manifest

2015 Journal of Refractive Surgery

134. Effect of photorefractive keratectomy on nystagmus and visual functions in myopic patients with infantile nystagmus syndrome. (Abstract)

Effect of photorefractive keratectomy on nystagmus and visual functions in myopic patients with infantile nystagmus syndrome. To determine the effect of photorefractive keratectomy (PRK) on involuntary eye movements, visual acuity, and contrast sensitivity in myopic patients with infantile nystagmus syndrome.Prospective interventional case series.This study was conducted on patients with infantile nystagmus syndrome and myopia equal to or more than -1 diopter (D), who were referred to our

2015 American Journal of Ophthalmology

135. Wavefront-guided versus wavefront-optimized photorefractive keratectomy: Clinical outcomes and patient satisfaction. (Abstract)

Wavefront-guided versus wavefront-optimized photorefractive keratectomy: Clinical outcomes and patient satisfaction. To compare visual outcomes following Visx Star S4 Customvue wavefront-guided and Allegretto Wave Eye-Q 400 Hz wavefront-optimized photorefractive keratectomy (PRK).Warfighter Refractive Eye Surgery Program and Research Center, Fort Belvoir, Virginia, and Walter Reed National Military Medical Center, Bethesda, Maryland, USA.Prospective randomized clinical trial.Active-duty United

2015 Journal of cataract and refractive surgery Controlled trial quality: uncertain

136. Flap lift and photorefractive keratectomy enhancements after primary laser in situ keratomileusis using a wavefront-guided ablation profile: Refractive and visual outcomes. (Abstract)

Flap lift and photorefractive keratectomy enhancements after primary laser in situ keratomileusis using a wavefront-guided ablation profile: Refractive and visual outcomes. To analyze results of wavefront-guided laser vision correction retreatments performed either by lifting the original flap or by surface ablation over the flap.Optical Express, Glasgow, United Kingdom.Retrospective case series.This retrospective study included patients grouped according to whether they had flap lift (...) enhancement or photorefractive keratectomy (PRK) performed over the LASIK flap. All retreatment procedures were performed with the Visx Star S4 IR excimer laser with wavefront-guided ablation profile derived from the iDesign aberrometer. Visual acuities, refractive outcomes, vector analysis of refractive cylinder and complications were analyzed in this study. The results of the last available clinical visit are presented.This retrospective study included 290 eyes of 202 patients divided into 2 groups: 119

2015 Journal of cataract and refractive surgery

137. Corneal Complications During and After Vitrectomy for Retinal Detachment in Photorefractive Keratectomy Treated Eyes. Full Text available with Trip Pro

Corneal Complications During and After Vitrectomy for Retinal Detachment in Photorefractive Keratectomy Treated Eyes. To evaluate the occurrence of late-onset corneal haze (LOCH) after vitrectomy for rhegmatogenous retinal detachment (RRD) in photorefractive keratectomy (PRK)-treated eyes. This observational cohort study comprised 13 eyes of 13 patients who underwent vitrectomy for RRD and who had been subjected to PRK years earlier. The occurrence of LOCH was evaluated together with all

2015 Medicine

138. Fifteen years follow-up of photorefractive keratectomy up to 10 D of myopia: outcomes and analysis of the refractive regression. Full Text available with Trip Pro

Fifteen years follow-up of photorefractive keratectomy up to 10 D of myopia: outcomes and analysis of the refractive regression. To evaluate outcomes of photorefractive keratectomy up to -10.00 D of myopia and -4.50 of astigmatism and to develop a predictive model for the refractive changes in the long term.Vissum Corporation and Miguel Hernandez University (Alicante, Spain).Retrospective-prospective observational series of cases.This study included 33 eyes of 33 patients aged 46.79±7.04 years (...) during the follow-up.Photorefractive keratectomy is a safe refractive procedure in the long term within the range of myopia currently considered suitable for its use, although its efficacy decreases with time, especially, in high myopia. The model developed predicts a myopic regression of 2.00 D at 15 years for an ablation depth of 130 µm.Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products

2015 British Journal of Ophthalmology

139. Aspheric versus wavefront-guided photorefractive keratectomy: Contralateral eye study. (Abstract)

Aspheric versus wavefront-guided photorefractive keratectomy: Contralateral eye study. To compare the refractive, visual, and aberrometric outcomes between wavefront-guided photorefractive keratectomy (PRK) and aspheric PRK in myopic patients.Khatam-al-Anbia Eye Hospital, Mashhad, Iran.Prospective randomized clinical trial.One eye of each patient was randomly assigned to excimer laser wavefront-guided PRK (Zyoptix) and the other eye to excimer laser aspheric PRK (Technolas 217z

2015 Journal of cataract and refractive surgery Controlled trial quality: uncertain

140. Photorefractive keratectomy in 22 adult eyes with infantile nystagmus syndrome. (Abstract)

Photorefractive keratectomy in 22 adult eyes with infantile nystagmus syndrome. To analyze visual and refractive outcomes of photorefractive keratectomy (PRK) in adult patients with infantile nystagmus syndrome.Ophthalmology Unit, Department of Experimental Diagnostic and Specialty Medicine, Saint Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy.Retrospective case series.Photorefractive keratectomy was performed in both eyes of patients with infantile nystagmus syndrome under

2015 Journal of cataract and refractive surgery

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