Aim: To investigate the long term (≥5y) efficacy, predictability, and safety of laser keratomileusis (LASIK) in eyes with thin corneas [central corneal thickness (CCT) <500 µm].
Methods: A total of 339 patients met the criteria of this study. Finally, 175 eyes of 89 patients who had thin corneas and underwent LASIK≥5y ago returned to our clinic and included in this study. Preoperative parameters recorded included uncorrected visual acuity (UCVA), corrected distance visual acuity (CDVA), manifest refraction, CCT and corneal topography. At returning visits, in addition to visual acuity and manifest refraction, ultrasound CCT and corneal topography were performed. Optical coherence tomography was used to measure the CCT, LASIK flap thickness, and residual stromal bed thickness (RSBT). Safety index, efficacy index, percentage of eyes within ±0.5 D and ±1.0 D of refraction, percent tissue altered (PTA), and percentage stromal bed thickness (PSBT) were calculated.
Results: The safety index was 1.09 and efficacy index was 0.99. The percentages of eyes within ±0.5 D and ±1.0 D were 71.2% and 87.7%, respectively. The mean PTA was 40%±6% (range 20% to 55%); 76 eyes (43.4%) had PTA <40% and 99 eyes (56.6%) had PTA≥40%. The mean RSBT was 303±27 µm (range 240 to 390 µm), and 2 eyes had RSBT<250 µm. The mean PSBT was 61%±9% (range 51% to 85%). No eyes developed ectasia.
Conclusion: In this cohort with the PSBT of 50% or more, LASIK is safe with follow-up for at least 5y.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6048324 | PMC |
| http://dx.doi.org/10.18240/ijo.2018.07.25 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A perspective review on factors that influence mutagenicity in medicinal plants and their health implications.
Toxicol Sci
January 2025
Department of Pharmacology, University of the Free State, Bloemfontein, 9300, South Africa.
Medicinal plants are products from natural sources that have found relevance in medicine for several decades. They are rich in bioactive compounds; thus, they are widely used to treat different ailments globally. Medicinal plants have provided hope for the health care industry as most are used to synthesize modern medicines currently used in the treatment of various diseases.
View Article and Find Full Text PDFComparative study between fractional laser assisted drug delivery of botulinum toxin versus botulinum toxin injection in primary palmar and axillary hyperhidrosis.
Arch Dermatol Res
January 2025
Department of Dermatology, Medical Research and Clinical Studies Institute, National Research Centre, Giza, Egypt.
Palmar hyperhidrosis is common condition that is challenging to treat. Nonsurgical treatments include topical antiperspirants, iontophoresis, anticholinergic drugs and botulinum toxin injections. To evaluate the safety and efficacy of ablative fractional laser therapy, combined with topically applied botulinum toxin versus its injection for the treatment of hyperhidrosis.
View Article and Find Full Text PDFWater vapor thermal therapy for treatment of lower urinary tract symptoms due to large benign prostatic hyperplasia (≥ 80 g).
World J Urol
January 2025
Department of Urology, AP-HM, North Hospital, Marseille, France.
Introduction: Water vapor thermal therapy (WVTT; REZUM™; Boston, USA) offers symptom relief with reduced risks of complications in patients with lower urinary tract symptoms (LUTS) related to benign prostatic obstruction (BPO). WVTT therapy has been validated in the pivotal study in men with smaller prostates (< 80 cc). Yet, its feasibility for larger prostates (≥ 80 cc) remains underexplored.
View Article and Find Full Text PDFPyrrolopyrrole Cyanine Aggregates with Amplified Superoxide Radical Generation, GSH Depletion, and Photothermal Action for Hypoxic Cancer Phototherapy.
ACS Appl Mater Interfaces
January 2025
School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China.
The elevated glutathione (GSH) level and hypoxia in tumor cells are two key obstacles to realizing the high performance of phototherapy. Herein, the electron-donating rotors are introduced to wings of electron-withdrawing pyrrolopyrrole cyanine (PPCy) to form donor-acceptor-donor structure -aggregates for amplified superoxide radical generation, GSH depletion, and photothermal action for hypoxic cancer phototherapy to tackle this challenge. Three PPCy photosensitizers (PPCy-H, PPCy-Br, and PPCy-TPE) produce hydroxyl radicals (•OH) and superoxide radicals (O) in hypoxia tumors exclusively as well as excellent photothermal performances under light irradiation.
View Article and Find Full Text PDFComparison of Carbon Dioxide Laser and Surgical Excision for the Treatment of Eyelid Margin Benign Tumors: A Prospective, Randomized, and Single-blind Study.
J Craniofac Surg
January 2025
Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital of Fudan University.
Objectives: This study aims to compare the safety and efficacy between carbon dioxide (CO2) laser excision and surgical excision for the treatment of eyelid margin benign tumors.
Methods: In this single-center, prospective, randomized, and single-blind study, 32 patients diagnosed with eyelid margin benign tumors were enrolled from February 2019 to February 2020 and randomly divided into 2 groups. The sexes, ages, tumor size (length×width), scar, procedure time, physicians' assessment score, patients' satisfaction score, and complications were recorded.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!