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Purpose: To evaluate the clinical outcome of laser-assisted surgical correction of high hyperopic or mixed astigmatism using small incision intrastromal lenticule rotation (SMILERO) alone or combined with photorefractive keratectomy (PRK).
Methods: This retrospective case series enrolled 25 eyes with high astigmatism that underwent SMILERO surgery. Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), uncorrected near visual acuity (UNVA), manifest refraction, central corneal thickness, and corneal higher order aberrations were analyzed before surgery and after 3, 6, and 12 months of follow-up.
Changes in relative peripheral refraction after implantable collamer lenses implantation.
Graefes Arch Clin Exp Ophthalmol
December 2024
Eye Ear Nose and Throat Hospital, Fudan University, XuHui District, No. 19 BaoQing Road, Shanghai, 200031, China.
Purpose: This study aimed to measure the changes in refraction difference value (RDV) in different parts of the retina before and after implantable collamer lenses (ICL) surgery.
Design: Prospective study.
Methods: This study included 40 eyes of 40 patients who underwent ICL implantation for myopia.
Photoreceptor layer elevation due to subretinal fluid: Impact on visual acuity measurements and simulation from biometrics.
Ophthalmic Physiol Opt
December 2024
School of Optometry, Indiana University, Bloomington, Indiana, USA.
Purpose: Visual acuity (VA) is a primary outcome measure that defines the success of clinical interventions for retinal diseases such as age-related macular degeneration (AMD) or diabetic macular oedema (DME). These conditions can lead to the presence of subretinal fluid, causing substantial photoreceptor layer elevation. Hyperopic defocus then occurs, affecting the VA measurements.
View Article and Find Full Text PDFPurpose: To evaluate the refractive prediction error of common intraocular lens (IOL) power calculation formulas in patients who underwent intrascleral IOL fixation using the four-flanged technique.
Methods: This prospective, longitudinal, single-site, single-surgeon study's setting was the Department for Ophthalmology and Optometry, Medical University of Vienna, Austria. Patients who received IOL implantation via the four-flanged technique were followed up to 3 months after the operation.
The optic nerve in spaceflight: novel concepts in the pathogenesis of optic disc edema in microgravity.
Curr Opin Neurol
February 2025
Department of Ophthalmology, Baylor College of Medicine, Houston.
Purpose Of Review: Spaceflight-associated neuro-ocular syndrome (SANS) encompasses a unique constellation of neuro-ocular findings in astronauts, including optic disc edema (ODE), globe flattening, chorioretinal folds, and hyperopic refractive shift. Although there are numerous neuro-ocular findings in SANS, the purpose of this review is to describe the novel, emerging concepts of the pathogenesis for the ODE specifically in SANS.
Recent Findings: While the initial hypotheses on the pathogenesis of ODE in SANS focused on possible elevated intracranial pressures (i.
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