Search Our Scientific Publications & Authors

Front Neurol 2018 26;9:990. Epub 2018 Nov 26.

Department of Otolaryngology, University of Miami Hospital, Miami, FL, United States.

This study examined the dynamic coordination between disconjugate, vergence eye movements, and pupil size in 52 normal subjects during binocular disparity stimulation in a virtual reality display. Eye movements and pupil area were sampled with a video-oculographic system at 100 Hz during performance of two tasks, (1) fusion of a binocular disparity step (±1.5° of visual angle in the horizontal plane) and (2) pursuit of a sinusoidally varying binocular disparity stimulus (0. Read More

Radiol Case Rep 2019 Feb 1;14(2):291-297. Epub 2018 Dec 1.

University of Washington Medical Center, 1959 NE Pacific St, Seattle, WA 98195 USA.

Some proximal femur fractures may be treated surgically with the use of fracture fixation hardware such as the sliding hip screw and its variants. These devices allow the femoral head and neck fragment to compress against the trochanteric or shaft fragment as the hip screw telescopes into the barrel of the side plate. We describe an unusual complication in which the hip screw disengaged in the opposite direction, migrated through the hip joint, and came to rest inside the pelvic cavity. Read More

PLoS One 2018 10;13(12):e0208499. Epub 2018 Dec 10.

Electronics Engineering Department, Universidad Técnica Federico Santa María, Valparaíso, Chile.

We present an algorithm for a class of statistical inference problems. The main idea is to reformulate the inference problem as an optimization procedure, based on the generation of surrogate (auxiliary) functions. This approach is motivated by the MM algorithm, combined with the systematic and iterative structure of the Expectation-Maximization algorithm. Read More

J Neuroophthalmol 2018 Oct 23. Epub 2018 Oct 23.

Departments of Ophthalmology (MD, JW, CO), Neurology (MD, AEM), and Pathology (EL), Weill Cornell Medical College, New York, New York.

Background: To describe a case of optic neuropathy associated with intravascular lymphoma (IVL).

Methods: Case report and review of the literature.

Results: A case of asymmetric binocular vision loss is described, preceded by transient vision loss. Read More

IEEE J Biomed Health Inform 2018 Dec 6. Epub 2018 Dec 6.

Augmented reality (AR) surgical navigation systems based on image overlay have been used in minimally invasive surgery (MIS). However, conventional systems still suffer from a limited viewing zone, a shortage of intuitive three-dimensional (3D) image guidance and can't be moved freely. To fuse the 3D overlay image with the patient in situ, it is essential to track the overlay device while it is moving. Read More

Neuroimage 2018 Dec 4. Epub 2018 Dec 4.

Wellcome Trust Centre for Human Neuroimaging, UCL Institute of Neurology, London, UK; UCL Institute of Cognitive Neuroscience, University College London, UK.

Can we change our perception by controlling our brain activation? Awareness during binocular rivalry is shaped by the alternating perception of different stimuli presented separately to each monocular view. We tested the possibility of causally influencing the likelihood of a stimulus entering awareness. To do this, participants were trained with neurofeedback, using realtime functional magnetic resonance imaging (rt-fMRI), to differentially modulate activation in stimulus-selective visual cortex representing each of the monocular images. Read More

Invest Ophthalmol Vis Sci 2018 Dec;59(15):5816-5822

Laboratory of Sensorimotor Research, National Eye Institute, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, United States.

Purpose: Stereoscopic vision, by detecting interocular correlations, enhances depth perception. Stereodeficiencies often emerge during the first months of life, and left untreated can lead to severe loss of visual acuity in one eye and/or strabismus. Early treatment results in much better outcomes, yet diagnostic tests for infants are cumbersome and not widely available. Read More

Clin Ophthalmol 2018 12;12:2305-2312. Epub 2018 Nov 12.

University Hospital of Brest - Hospital Morvan, Brest, France,

Purpose: The purpose of this study was to evaluate the influence of different levels of monovision on the clinical outcomes achieved with an extended range of vision (ERV) intraocular lens (IOL).

Patients And Methods: Subanalysis of 411 patients from the multicenter CONCERTO study aimed at evaluating the outcomes after bilateral implantation of the Tecnis Symfony IOL. Visual acuity, spectacle independence, photic phenomena incidence, and patient satisfaction outcomes were evaluated in six groups defined according to the level of monovision: 0. Read More

Elife 2018 Dec 3;7. Epub 2018 Dec 3.

School of Psychological Sciences, Faculty of Medicine, Nursing, and Health Sciences, Monash University, Melbourne, Australia.

The attentional sampling hypothesis suggests that attention rhythmically enhances sensory processing when attending to a single (~8 Hz), or multiple (~4 Hz) objects. Here we investigated whether attention samples sensory representations that are not part of the conscious percept during binocular rivalry. When crossmodally cued toward a conscious image, subsequent changes in consciousness occurred at ~8 Hz, consistent with rates of undivided attentional sampling. Read More

Can J Ophthalmol 2018 Dec 7;53(6):609-613. Epub 2018 Apr 7.

McGill Vision Research, Department of Ophthalmology, McGill University, Montreal, Que. Electronic address:

Objective: Both genetic and environmental factors are thought to play a role in the pathogenesis of strabismus and subsequent ocular dominance and amblyopia. Our purpose was to compare the characteristics of sensory visual function in 2 adult monozygotic (genetically identical) twins who presented with esotropia at different ages.

Methods: Monocular and binocular visual function was measured in the twins. Read More

PeerJ 2018 27;6:e6011. Epub 2018 Nov 27.

Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom.

Many experiments have demonstrated that the rhythms in the brain influence the initial perceptual information processing. We investigated whether the alternation rate of the perception of a Necker cube depends on the frequency and duration of a flashing Necker cube. We hypothesize that synchronization between the external rhythm of a flashing stimulus and the internal rhythm of neuronal processing should change the alternation rate of a Necker cube. Read More

Astron J 2018 Aug 2;156(2). Epub 2018 Aug 2.

Fundació Observatori Esteve Duran, Barcelona, Spain.

Small-scale waves were observed along the boundary between Jupiter's North Equatorial Belt and North Tropical Zone, ~16.5° N planetographic latitude in Hubble Space Telescope data in 2012 and throughout 2015 to 2018, observable at all wavelengths from the UV to the near IR. At peak visibility, the waves have sufficient contrast (~10%) to be observed from ground-based telescopes. Read More

J Cataract Refract Surg 2018 Nov 30. Epub 2018 Nov 30.

From the IOA Madrid Innova Ocular, Madrid, Spain. Electronic address:

Purpose: To evaluate visual outcomes and satisfaction after implantation of 2 trifocal intraocular lenses (IOLs): a spherical IOL and a toric IOL.

Setting: IOA Madrid Innova Ocular, Madrid, Spain.

Design: Prospective, controlled clinical trial. Read More

Vestn Oftalmol 2018 ;134(5. Vyp. 2):178-185

Research Institute of Eye Diseases, 11A Rossolimo St., Moscow, Russian Federation, 119021.

One of the most common and potentially threatening manifestations of granulomatosis with polyangiitis (GPA) is orbital lesion.

Purpose: To study the clinical course and prognosis of orbital lesions of various localization in GPA patients. Material and me-thods. Read More

Appl Ergon 2019 Jan 3;74:186-193. Epub 2018 Sep 3.

Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, VA, 24061, USA.

Limited information is available regarding the effective use of workplace head-worn displays (HWD), especially the choices of HWD types and user interface (UI) designs. We explored how different HWD types and UI designs affect perceived workload, usability, visual discomfort, and job performance during a simulated warehouse job involving order picking and part assembly. Sixteen gender-balanced participants completed the simulated job in all combinations of two HWD types (binocular vs. Read More

Vision Res 2018 Nov 28;154:105-114. Epub 2018 Nov 28.

University of Sydney, School of Psychology, NSW 2006, Australia.

Continuous flash suppression (CFS) is a technique in which presenting one eye with a dynamic Mondrian sequence prevents a low-contrast target in the other eye from being perceived for many seconds. Frequently used to study unconscious visual processing, CFS bears many similarities with binocular rivalry (BR), another popular dichoptic stimulation technique. It is therefore puzzling that the effect of mask size and contrast seem to differ between CFS and BR. Read More

Cerebellum Ataxias 2018 20;5:15. Epub 2018 Nov 20.

Department of Rehabilitation and Physical Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1, Sakuragaoka, Kagoshima city, Kagoshima, 890-8520 Japan.

Background: In Patients with spinocerebellar ataxia type 6 (SCA6) are often treated by transcranial magnetic stimulation (TMS) over the motor cortex and cerebellum. However, few reports have examined effective therapeutic modalities for diplopia in SCA6 patients. In the current case, we applied single-pulse TMS over the motor cortex and cerebellum to improve ataxia, and observed an unexpected improvement of diplopia. Read More

Int Ophthalmol 2018 Nov 26. Epub 2018 Nov 26.

Ophthalmology Clinics, SBU Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Bakirkoy, Istanbul, Turkey.

Purpose: To evaluate the efficacy of intravitreal aflibercept (IVA) in vascular and macular maturation in neonates with type 1 retinopathy of prematurity (ROP) and aggressive posterior retinopathy of prematurity (APROP).

Materials And Methods: Thirty-six eyes of 18 patients with type 1 ROP or APROP in zone I or posterior zone II were enrolled in our study. At baseline, only fluorescein angiography (FA) was performed. Read More

Elife 2018 Nov 26;7. Epub 2018 Nov 26.

Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy.

Sensory deprivation during the post-natal 'critical period' leads to structural reorganization of the developing visual cortex. In adulthood, the visual cortex retains some flexibility and adapts to sensory deprivation. Here we show that short-term (2h) monocular deprivation in adult humans boosts the BOLD response to the deprived eye, changing ocular dominance of V1 vertices, consistent with homeostatic plasticity. Read More

Am J Otolaryngol 2019 Jan - Feb;40(1):106-109. Epub 2018 Sep 19.

Department of Otorhinolaryngology Head & Neck surgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China. Electronic address:

Background: Internal carotid artery (ICA) pseudoaneurysms are associated with high mortality if lack of proper management. Patients with ICA pseudoaneurysms in the sphenoid sinus often visit a hospital's ear, nose and throat (ENT) department due to nasal bleeding. In such cases, simple examination and therapy will lead to misdiagnosis. Read More

Opt Express 2018 Oct;26(21):27161-27178

With a view to the next generation of large space telescopes, we investigate guide-star-free, image-based aberration correction using a unimorph deformable mirror in a plane conjugate to the primary mirror. We designed and built a high-resolution imaging testbed to evaluate control algorithms. In this paper we use an algorithm based on the heuristic hill climbing technique and compare the correction in three different domains, namely the voltage domain, the domain of the Zernike modes, and the domain of the singular modes of the deformable mirror. Read More

Opt Express 2018 Sep;26(19):24816-24834

Due to the absence of rotational symmetry, off-axis astronomical telescopes with off-set pupil become subject to rotational misalignments. Rotational misalignments of large off-axis mirrors with reference to their geometric center can greatly degrade the imaging quality. This paper presents an in-depth discussion on the net aberration fields of off-axis astronomical telescopes induced by rotational misalignments. Read More

Vision Res 2018 Dec 5;154:131-141. Epub 2018 Dec 5.

School of Psychology, University of Wollongong, NSW 2522, Australia. Electronic address:

Ocular accommodation potentially provides information about depth but there is little evidence that this information is used by the human visual system. We use the hollow-face illusion, an illusion of depth reversal, to investigate whether accommodation is linked to perceived depth. In Experiment 1 accommodation, like vergence, was in front of the physical surface of the mask when the mask was upright and people reported experiencing the illusion. Read More

Adv Mater 2018 Nov 23:e1804680. Epub 2018 Nov 23.

State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, 610209, China.

In the past centuries, the scale of engineering optics has evolved toward two opposite directions: one is represented by giant telescopes with apertures larger than tens of meters and the other is the rapidly developing micro/nano-optics and nanophotonics. At the nanoscale, subwavelength light-matter interaction is blended with classic and quantum effects in various functional materials such as noble metals, semiconductors, phase-change materials, and 2D materials, which provides unprecedented opportunities to upgrade the performance of classic optical devices and overcome the fundamental and engineering difficulties faced by traditional optical engineers. Here, the research motivations and recent advances in subwavelength artificial structures are summarized, with a particular emphasis on their practical applications in super-resolution and large-aperture imaging systems, as well as highly efficient and spectrally selective absorbers and emitters. Read More

Ophthalmol Ther 2018 Nov 21. Epub 2018 Nov 21.

Vissum Instituto Oftalmologico de Alicante, Alicante, Spain.

Introduction: To report the outcomes in near vision, optical quality and pupil diameter of a new pharmacological therapy (FOV tears) for presbyopia.

Methods: This was a prospective, consecutive, interventional, non-comparative clinical study in which 117 presbyopic patients were given one drop of the novel therapy (FOV tears) in each eye, followed 2 h after the instillation of the eye drop by an evaluation of the binocular uncorrected near visual acuity (UNVA) and uncorrected distance visual acuity. The objective scatter index and pupil diameter under photopic and scotopic conditions before and after instillation were also assessed. Read More

PLoS One 2018 21;13(11):e0207517. Epub 2018 Nov 21.

Department of Ophthalmology, School of Medicine, Kitasato University, Kanagawa, Japan.

The aim of this cross-sectional study was to use standard automated perimetry to compare fixation variability among the dominant eye fixation, non-dominant eye fixation, and binocular fixation conditions. Thirty-five eyes of 35 healthy young participants underwent standard automated perimetry (Humphrey 24-2 SITA-Standard) in dominant eye fixation, non-dominant eye fixation, and binocular fixation conditions. Fixation variability during foveal threshold and visual field measurement, which was recorded using a wearable eye-tracking glass and calculated using the bivariate contour ellipse area (deg2), was compared among the three fixation conditions. Read More

J Opt Soc Am A Opt Image Sci Vis 2018 Oct;35(10):1705-1716

Thin mirrors, important for next-generation space telescopes, are difficult to accurately fabricate. One approach is to fabricate a mirror using traditional methods, then to bend the mirror using surface stress to correct residual height errors. We present two surface stress fields that correct any height error field in thin flat plates. Read More

Appl Opt 2018 Sep;57(27):8087-8095

A novel type of a continuously zoomable telescope is based on two pairs of adjacent toroidal lenses ("saddle lenses") in combination with standard optical components. Its variable magnification is adjusted by a mere rotation of the four saddle lenses around the optical axis. This avoids the necessity of classical zoom systems to shift multiple lenses along the longitudinal axis of the setup. Read More

Appl Opt 2018 Sep;57(27):7758-7763

The vibration test is one of many tests that space telescopes endure to ensure that functionality is not impaired by severe launch. Telescopes undergo detailed measurements, including mirror surface accuracy measurements. Due to the design shortcomings, degradation of lightweight mirror surface accuracy may exceed the design error budget at times. Read More

Appl Opt 2018 Nov;57(31):9397-9405

The membrane diffractive telescope is an alternative to future 10-meter class space telescopes due to its possible lower cost of manufacturing and launching. To actively control the misalignment, the edge sensor network is utilized to measure the relative in-plane motions as well as out-of-plane motions of neighboring segments. The measurement is vulnerable to noise and malfunction of sensors. Read More

Appl Opt 2018 Nov;57(31):9307-9315

A space-qualified fast steering mirror (SQ-FSM) was designed, built, and tested at the National Astronomical Observatories of the Chinese Academy of Sciences for an image stabilization system of space astronomical telescopes, which is used for the tip-tilt correction of small jitter of the satellite platform; this achieved image stability in a closed-loop manner. Its design primarily faces four challenges involving (1) sustaining the specified sine and random vibration without launch lock, as well as shock response spectrum experiments; (2) surface form error of a clear aperture of ϕ120  mm less than 1/50λ root mean square (RMS, λ=632.8  nm) with a relatively rigid mirror support; (3) resonance frequency of at least 800 Hz and as high as possible; (4) minimum reaction force and torque in order to decrease its unfavorable influence on the satellite platform. Read More

Appl Opt 2018 Oct;57(29):8775-8779

Iridium-based coatings for mirrors of x-ray telescopes are studied. In particular, stress-induced deformation is characterized and shown to be compressive and equal to -1786  MPa. Two methods for stress compensation are then studied. Read More

Appl Opt 2018 Oct;57(30):8790-8804

Accurate and robust wavefront reconstruction methods for pyramid wavefront sensors are in high demand, as these sensors are planned to be part of many instruments currently under development for ground-based telescopes. The pyramid sensor relates the incoming wavefront and its measurements in a nonlinear way. Nevertheless, almost all existing reconstruction algorithms are based on a linearization of the model. Read More

Appl Opt 2018 Oct;57(28):8385-8393

Medical robotics and computer-assisted surgery are hotspots in the field of robotics and medicine, changing the essence of traditional surgery using a combination of robotic, image processing, and computer technologies. The present paper aimed to study the auxiliary puncture procedure using a robot based on binocular vision optical positioning technology that can be used in minimally invasive surgery for coordinate precision of skin markers. ZED binocular cameras were selected for image acquisition and a model was established based on Zhang's calibration. Read More

Sci Rep 2018 Nov 20;8(1):17083. Epub 2018 Nov 20.

McGill Vision Research, Dept, Ophthalmology, McGill University, Montreal, Quebec, Canada.

Deprivation of visual information from one eye for a 120-minute period in normal adults results in a temporary strengthening of the patched eye's contribution to binocular vision. This plasticity for ocular dominance in adults has been demonstrated by binocular rivalry as well as binocular fusion tasks. Here, we investigate how its dynamics depend on the duration of the monocular deprivation. Read More

J Vis 2018 Nov;18(12):13

Department of Psychology, University of Essex, Essex, UK.

Binocular disparity signals can provide high acuity information about the positions of points, surfaces, and objects in three-dimensional space. For some stimulus configurations, however, perceived depth is known to be affected by surface organization. Here we examine the effects of surface continuity and discontinuity on such surface organization biases. Read More

Arch Soc Esp Oftalmol 2018 Nov 16. Epub 2018 Nov 16.

Servicio de Neurocirugía, Hospital Universitario Donostia, Donostia-San Sebastián, Gipuzkoa, España.

The one and a half Fisher syndrome is produced by an unilateral lesion in the dorsal and inferior part of the pons located specifically in the pontine tegmentum. This is an area that contains the medial longitudinal fasciculus (LMF), the paramedian pontine reticular formation (PPRF) and the nucleus of the sixth cranial nerve, responsible for the horizontal movements of the gaze. Clinically it manifests with conjugate gaze palsy with internuclear ophthalmoplegia. Read More

Invest Ophthalmol Vis Sci 2018 Nov;59(13):5408-5416

Visual Neuroscience Group, School of Psychology, University of Nottingham, Nottingham, United Kingdom.

Purpose: Even during steady fixation, people make small eye movements such as microsaccades, whose rate is altered by presentation of salient stimuli. Our goal was to develop a practical method for objectively and robustly estimating contrast sensitivity from microsaccade rates in a diverse population.

Methods: Participants, recruited to cover a range of contrast sensitivities, were visually normal (n = 19), amblyopic (n = 10), or had cataract (n = 9). Read More

IEEE Trans Image Process 2019 Apr 19;28(4):1866-1881. Epub 2018 Nov 19.

A challenging problem in the no-reference quality assessment of multiply distorted stereoscopic images (MDSIs) is to simulate the monocular and binocular visual properties under a mixed type of distortions. Due to the joint effects of multiple distortions in MDSIs, the underlying monocular and binocular visual mechanisms have different manifestations with those of singly distorted stereoscopic images (SDSIs). This paper presents a unified no-reference quality evaluator for SDSIs and MDSIs by learning monocular and binocular local visual primitives (MB-LVPs). Read More

Indian J Ophthalmol 2018 Dec;66(12):1871-1874

Department of Ophthalmology, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.

To describe a rare case of an unusual visual threatening complication of chronic myeloid leukemia (CML). A 21-year-old male visited the hospital complaining of 1-week painless binocular acute visual loss without any other symptoms. The patient was diagnosed with CML. Read More

Int J Ophthalmol 2018 18;11(11):1870-1874. Epub 2018 Nov 18.

State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, Guangdong Province, China.

This study aims to evaluate the clinical results of posterior chamber implantable collamer lens (ICL) implantation in adults with high myopic anisometropic amblyopia. Thirteen patients aged 27.04±7. Read More

Int J Ophthalmol 2018 18;11(11):1814-1820. Epub 2018 Nov 18.

Department of Ophthalmology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China.

Aim: To investigate the functional networks underlying the brain-activity changes of patients with high myopia using the voxel-wise degree centrality (DC) method.

Methods: In total, 38 patients with high myopia (HM) (17 males and 21 females), whose binocular refractive diopter were -6.00 to -7. Read More

Wiad Lek 2018 ;71(7):1231-1234

Ukrainian Medical Stomatological Academy, Poltava, Ukraine.

Objective: Introduction: The most pronounced thinning of the enamel is in the intercuspal fissures of the third molars, which are characterized by a wide variety of shapes and sizes up to the abnormal disruption of their development and teething, which often causes all kinds of clinical complications. The aim: The purpose of the paper was to obtain the data on the structural state of the third molars and identify their most damaged areas in the latent form of dental caries.

Patients And Methods: Materials and Methods: 10 lower third molars with an intact crown without clear external signs of tooth decay have been examined. Read More

Cont Lens Anterior Eye 2018 Nov 15. Epub 2018 Nov 15.

Doctoral and Research School, European University of Madrid, Spain.

Purpose: To evaluate the perception of light disturbances (LD) in children wearing Dual Focus (DF) MiSight® contact lenses (CLs) for myopia control compared with children wearing single vision spectacles (SV).

Methods: This was a randomized, controlled clinical trial involving subjects aged 8-12 with myopia of -0.75 to -4. Read More

Conf Proc IEEE Eng Med Biol Soc 2018 Jul;2018:5531-5536

The superior colliculus (SC) of the midbrain has been a model structure for multisensory processing. Many neurons in the intermediate and deep SC layers respond to two or more of auditory, visual, and somatosensory stimuli as assessed by electrophysiology. In contrast, noninvasive and large field of view functional magnetic resonance imaging (fMRI) studies have focused on multisensory processing in the cortex. Read More

Ophthalmology 2018 Nov 12. Epub 2018 Nov 12.

Oxford Eye Hospital, Oxford, UK.

Clin Exp Ophthalmol 2018 Nov 14. Epub 2018 Nov 14.

Department of Ophthalmology, University of Auckland, NZ.

Importance: This is the first national study on childhood visual impairment in a developed nation, New Zealand; describing prevalence, aetiology and preventable causes of low vision and blindness in children.

Background: Causes of childhood blindness varies between regions. This study aimed to present region-specific data on epidemiology of childhood blindness affecting a developed nation, New Zealand. Read More

Proc Natl Acad Sci U S A 2018 Nov 14;115(48):12289-12294. Epub 2018 Nov 14.

Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology and Osaka University, Suita 565-0871, Japan.

Stereopsis is a fundamental visual function that has been studied extensively. However, it is not clear why depth discrimination (stereoacuity) varies more significantly among people than other modalities. Previous studies have reported the involvement of both dorsal and ventral visual areas in stereopsis, implying that not only neural computations in cortical areas but also the anatomical properties of white matter tracts connecting those areas can impact stereopsis. Read More

J Refract Surg 2018 Nov;34(11):746-750

Purpose: To compare the clinical outcomes of binocular cataract surgery with and without pinhole corneal inlay implantation.

Methods: In the inlay-cataract group, a small aperture corneal inlay was implanted in addition to cataract surgery in the non-dominant eye and routine cataract surgery was performed in the dominant eye. In the control group, conventional cataract surgery was performed in both eyes in separate consecutive surgeries 2 weeks apart. Read More

Clin Ophthalmol 2018 23;12:2129-2136. Epub 2018 Oct 23.

Crystal Clear Vision Canada, ON, Canada,

Purpose: To combine the increased depth of focus of the TECNIS Symfony intraocular lens (IOL) with a TECNIS Multifocal (MF) low-add IOL (+3.25) to enable a patient to be less dependent on corrective lenses.

Setting: Clinic in Canada. Read More