Objective: To compare visual acuity, refraction, Schirmer test, tear break-up time (TBUT), esthesiometry, optical quality, higher order aberrations and posterior corneal elevation measurements before and after small-incision lenticule extraction (SMILE) and femtosecond laser-assisted in situ keratomileusis (FS-LASIK).
Method: Paired eye, randomized, cohort study. Follow-up was performed at days 1 and 7, and at months 1, 3, 6 and 12.
Purpose: To report the clinical and microbiological profiles of microbial keratitis and its antimicrobial resistance before, during, and after COVID-19.
Methods: This was a retrospective case-note review of all corneal scrape specimens collected from patients with microbial keratitis from January 2018 to December 2023. Case records were analyzed for demographic characteristics, microbiological diagnosis, and antibiograms.
Objective: This study aimed to investigate all recorded corneal and ocular surface research by Mexican authors.
Methods: The output data was extracted from SCOPUS to account for all publications regarding the corneal or ocular surface by Mexican authors. Data screening, extraction, and critical revision were performed by two of the authors to avoid duplication and ensure the authenticity of all papers.
BMC Ophthalmol
September 2024
Purpose: This report aims to present a case of corneal keloid caused by chronic corneal insult after trauma and Descemet stripping automated endothelial keratoplasty (DSAEK).
Case Presentation: A 35-year-old male with a history of vision loss in the right eye was referred to our hospital. The patient underwent Ahmed Glaucoma Valve Implantation to alleviate elevated intraocular pressure after ocular trauma to the same eye.
Purpose: Describe complications, functional success, and retention of the Lucia Keratoprosthesis (KPro).
Design: Retrospective interventional case series METHODS: The demographic data, baseline characteristics, complications, functional success, and retention were analyzed for Lucia KPro at the Instituto de Oftalmologia Conde de Valenciana in Mexico City from 2021 to 2023. Multivariate regression analysis and Kaplan-Meier plots were performed to identify associations with functional failure.
Purpose: The purpose of the study was to evaluate the efficacy of mitomycin C intravascular chemoembolization (MICE) for corneal neovascularization (CNV).
Methods: This is a prospective, nonrandomized, interventional study. Patients with stable CNV irrespective of the underlying etiology were enrolled in the study.
Background: Fleck corneal dystrophy (FCD) is a rare autosomal dominant disease that affects exclusively the corneal stroma. The disease is caused by heterozygous variants in PIKFYVE, a gene encoding a lipid kinase involved in multiple cellular pathways, primarily participating in membrane dynamics and signaling. This report describes a familial case of FCD caused by a complete deletion of the PIKFYVE gene.
View Article and Find Full Text PDFPlasmatic uric acid (UA) has been inconsistently associated with diabetic retinopathy (DR). Specific sight-threatening stages of DR have not been studied for their association with UA. Cross-sectional, comparative study.
View Article and Find Full Text PDFNeurotrophic keratopathy is an uncommon degenerative corneal disorder characterized by compromised corneal sensory innervation resulting in the formation of epithelial defects and nonhealing corneal ulcers. Various treatment modalities are available to stabilize disease progression, improve patient well-being, and prevent vision loss. For eligible patients, medical and surgical reinnervation have emerged as pioneering therapies, holding promise for better management.
View Article and Find Full Text PDFAm J Ophthalmol Case Rep
December 2023
Purpose: To report a case of pressure-induced interlamellar stromal keratitis (PISK) 10 years after laser assisted in situ keratomileusis (LASIK).
Observations: A case of a 36-year-old man who underwent LASIK and presented with PISK 10 years later. Before presenting to our department he consulted elsewhere for red eye, decreased visual acuity, foreign body sensation, and pain on the RE for 1 week.
The study of corneal biomechanics has become relevant in recent years due to its possible applications in the diagnosis, management, and treatment of various diseases such as glaucoma, keratorefractive surgery and different corneal diseases. The clinical biomechanical investigation has become of great importance in the setting of refractive surgery to identify patients at higher risk of developing iatrogenic ectasia. This review focuses on two of the technologies available for clinical use, the Ocular Response Analyzer (Reichert Ophthalmic Instruments, Buffalo, NY, USA) and the Corvis ST (Oculus Optikgergäte GmbH, Wetzlar, Germany).
View Article and Find Full Text PDFCase Rep Ophthalmol
October 2023
The aim of this study was to report a case with the use of amniotic membrane transplant and deep anterior keratoplasty in a patient with bilateral Acanthamoeba infectious keratitis as a treatment. A 20-year-old male presented with bilateral Acanthamoeba keratitis (AK) who was initially diagnosed with herpetic keratitis receiving full antiviral and corticosteroid topical treatment without any improvement. Corneal biopsy was performed to confirm the suspected diagnosis, and Acanthamoeba stromal cysts were identified in the sample.
View Article and Find Full Text PDFCogan syndrome is a rare disease whose etiology is still undetermined. It typically affects men and women between the second and fourth decade of life. We report a case of Cogan syndrome with ocular and audio-vestibular involvement as a systemic manifestation in a 31-year-old woman.
View Article and Find Full Text PDFBr J Ophthalmol
November 2023
Purpose: The purpose of this double-masked, parallel randomised controlled trial was to compare the recurrence rate and other outcomes between conjunctival-limbal autograft (CLAu) and mini-simple limbal epithelial transplantation (mini-SLET) after excision of pterygium.
Methods: Eligibility criteria for participants was the presence of a primary nasal pterygium extending equally to or greater than two millimetres on the cornea on its horizontal axis from the nasal limbus. The participants were allocated into two groups (CLAu and mini-SLET) using simple randomisation with a table of random numbers.
Purpose: The aim of this study was to report a case of ocular Mpox that responded favorably to treatment with topical interferon and oral doxycycline.
Methods: This is a case report of a previously healthy 24-year-old woman who developed a pustular rash, headache, fever, arthralgia, sore throat, and asthenia 3 weeks before attending to our clinic. Her main complaint at the moment of the visit was pain, photophobia, foreign body sensation, blurred vision, red eye, and discharge on the left eye.
Int Ophthalmol
October 2023
Purpose: To describe the ocular clinical characteristics of a group of Mexican patients with lamellar ichthyosis (LI) arising from TGM1 pathogenic variants.
Methods: Ophthalmological exploration, pedigree analysis and genetic screening were performed in patients with an established clinical diagnosis of lamellar ichthyosis from families located in a small community in the Southeast of Mexico.
Results: Nine patients with LI in five families were identified.
Background: Data on visual impairment (VI) in patients with diabetes are necessary in order to guide economic and human resources for reducing its prevalence.
Objective: To estimate the prevalence of diabetic retinopathy-related VI in patients with type 2 diabetes in a hospital-based setting.
Material And Methods: Cross-sectional study carried out from 2014 to 2019 in an ophthalmology outpatient clinic.
Purpose: To determine the effectiveness of subconjunctival application of a novel sirolimus liposomal formulation for the treatment of dry eye.
Methods: A randomized, triple-blind, Phase II clinical trial. Thirty-eight eyes of 19 patients were included.
Background: Keratoplasty in the pediatric population has been considered a high-risk procedure.
Objective: To know the demographic data of patients younger than 18 years treated with optical keratoplasty, indications for surgery and its results.
Material And Methods: A retrospective study was carried out at Conde de Valenciana Ophthalmology Institute, in which the medical records of patients younger than 18 years treated with optical keratoplasty from 2009 to 2019 were analyzed.