Abstract Purpose To assess the impact of 3 months orthokeratology (ortho‐k) contact lenses (CLs) for myopia correction on corneoscleral profile, as changes in scleral geometry could serve indirect evidence alteration corneal biomechanical properties. Methods Twenty subjects (40 eyes) were recruited to wear ortho‐k overnight; however, after discontinuation (two CL fractures, one under‐correction and two non‐serious adverse events), 16 (31 finished a 3‐month follow‐up. Corneoscleral...

The purpose of this study was to analyze inflammation- and pain-related molecules in tears patients suffering from chronic ocular pain associated with dry eye (DE) and/or a previous corneal refractive surgery (RS). Based on history, symptomatology, clinical signs, the subjects (n = 180, 51.0 ± 14.7 years, 118 females, 62 males) cross-sectional were assigned one five groups: DE after RS (P/DE-RS, n 52); asymptomatic subjects, i.e., without pain, (A-RS, 30); (P/DE-nonRS, 31); DE, no (DE-nonRS,...

The use of digital devices provides a wide range possibilities for measuring and improving visual function, including concepts such as perceptual learning dichoptic therapy. Different technologies can be used to apply these concepts, including, in recent years, the introduction virtual reality (VR) systems. A preliminary experience treating anisometropic amblyopia through an immersive VR device using prototype software is described. total 4 children were treated by performing 18 office-based...

Purpose To analyze the effect of central hole location in V4c implantable collamer lens (ICL) on quality vision, including progressive headlight glare simulation and life. Setting IOBA-Eye Institute, Valladolid, Spain. Design Case series. Methods The was determined by slitlamp dual Scheimpflug imaging for 6 months or more postoperatively. visual acuity, mesopic contrast sensitivity, halogen xenon photostress recovery time after glare, de Boer scale, Quality Life Impact Refractive Correction...

To describe the clinical characteristics of patients suffering from chronic dry eye (DE) and pain after refractive surgery (RS). Cross-sectional, observational, single-visit study. DE-, pain- psychological-related symptoms were evaluated with specific questionnaires. DE-related tests tear osmolarity, conjunctival hyperemia, Meibomian gland dysfunction, stability production, ocular surface staining. Corneal mechanical sensitivity (Cochet-Bonnet) was measured pre/post topical anesthesia,...

The goal of this study was to analyze the agreement between Medmont E300 and Visionix VX120+ systems in terms non-invasive tear break-up time (NIBUT) meniscus height (TMH) measurements. A total 60 eyes (30 healthy subjects) were enrolled. NIBUT TMH evaluated with E300; first NIBUT, NIBUT50%, VX120+. Both evaluations performed a random order by same clinician for right, left, both eyes. provided significantly higher than (p ≤ 0.003) NIBUT50% left 0.042). measured considering = 0.037). No...

To determine how corneoscleral geometry changes with axial length and to assess the usefulness of including sagittal configuration anterior segment when predicting length.

The aim was to evaluate the safety, efficacy, and visual performance of an orthokeratology lens with increased compression factor (ICF) 1.25 D in a 3-month follow-up. Thirty-six myopic patients (5 males 31 females; 24.2 ± 5.8 years) were fitted Alexa AR (Tiedra Farmacéutica S.L., Madrid, Spain) contact lenses (CLs) twenty participants finished Visual acuity (VA), subjective refraction, primary spherical coma aberrations, keratometry, central pachymetry, ocular surface evaluation performed at...

PURPOSE: To determine the longitudinal variation in KS-aquaPORT central hole location of phakic EVO+ Implantable Collamer Lens (ICL) (STAAR Surgical) and analyze its influence on visual performance, quality vision (QoV), life (QoL). METHODS: A prospective study was performed including 36 patients who had ICL implantation. The (Cartesian polar coordinates) determined with respect to pupil center axis. effect time (6-month follow-up) analyzed using linear mixed models. QoV, QoL parameters...

To assess the clinical validation of Myah device in a pediatric population by evaluating repeatability biometric evaluations and analyzing its agreement with Myopia Master system. A total 51 children (51 eyes) were enrolled. Repeated measurements flat (K1) steep (K2) corneal radius, white-to-white (WTW) distance axial length (AL) performed device. The same parameters obtained from subgroup (30 for analysis. was assessed using intrasubject standard deviation (Sw) intraclass correlation...

An analysis of the professional perspective vision therapy (VT) by eye care professionals allows understanding current controversies about this therapeutic option which aspects can be improved for its correct application in clinical practice.

This study enrolled 61 volunteers (102 eyes) classified into subjects < 50 years (group 1) and ≥ 2). Dysfunctional Lens Index (DLI); opacity grade; pupil diameter; corneal, internal, ocular higher order aberrations (HOAs) were measured with the i-Trace system (Tracey Technologies). Mean DLI was 8.89 ± 2.00 6.71 2.97 in groups 1 2, respectively, being significantly group all right eyes (both p 0.001). correlated age (Rho = −0.41, 0.001) diameter 0.20, 0.043) for eyes, numerous internal...

There is a lack of evidence about the exact deterioration visual function associated with age-related natural changes in lens, particularly intermediate (stage-2) dysfunctional lens syndrome (DLS). Standard photopic acuity and contrast sensitivity tests may not show worsening daily life activities, such as oncoming vehicle headlights at night. The purpose this study was to analyze under different conditions glare sources stage-2 DLS.Forty patients over 49 years age initial bilateral...

Aims/Purpose: To assess the influence of cataract formation on lens thickness (LT), anterior (ACS) and posterior (PCS) cortex space nuclear (NT). Methods: A prospective cross‐sectional study including patients seeking for surgery was performed. The standardized Lens Opacification Classification System (LOCS)‐III used to classify opacities. control group composed non‐cataractous also created. In addition, were classified according location (presence or absence cortical, subcapsular cataract)....

Characterizing lens thickness (LT) in patients with cataracts is important for better understanding the aging process and designing new intraocular power formulas. This study aimed to analyze influence of common senile cataract formation on LT, anterior (ACS) posterior (PCS) cortex space, nuclear (NT), controlling sex, age, axial length. A cross-sectional was performed. consecutive sample 603 volunteers (403 women, 200 men) aged 59.1 ± 18.8 years recruited. The standardized Lens...

Perception of optometrists and ophthalmologists vision therapy (VT) as well their methods for performing the sessions is great importance understanding problems that professionals face what should be improved in clinical practice.