Christos Theophanous

ORCID: 0000-0003-0881-6031
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About
Contact & Profiles
Research Areas
  • Corneal surgery and disorders
  • Ocular Surface and Contact Lens
  • Glaucoma and retinal disorders
  • Corneal Surgery and Treatments
  • Retinal Diseases and Treatments
  • Retinal and Optic Conditions
  • Health Systems, Economic Evaluations, Quality of Life
  • Healthcare Operations and Scheduling Optimization
  • Cerebral Venous Sinus Thrombosis
  • Ophthalmology and Visual Impairment Studies
  • Retinal Imaging and Analysis
  • Retinal and Macular Surgery
  • Intraocular Surgery and Lenses
  • CNS Lymphoma Diagnosis and Treatment
  • Empathy and Medical Education
  • Ear Surgery and Otitis Media
  • Healthcare professionals’ stress and burnout
  • Connexins and lens biology
  • Infectious Diseases and Tuberculosis
  • Advances in Oncology and Radiotherapy
  • Healthcare Policy and Management
  • Health and Medical Research Impacts
  • Cerebrovascular and Carotid Artery Diseases
  • Facial Nerve Paralysis Treatment and Research
  • Liquid Crystal Research Advancements

University of Chicago
2019-2023

University of Chicago Medical Center
2021-2023

Palo Alto Institute
2023

Duke University
2020-2022

Duke Medical Center
2021

Kaiser Permanente Baldwin Park Medical Center
2018-2019

University of Southern California
2014-2018

University of California, San Francisco
2017-2018

Cardiovascular Medical Group
2018

University of Cape Coast
2015-2016

Purpose: To evaluate the prevalence and risk factors for pediatric myopia in a contemporary American cohort. Methods: A cross-sectional study of patients enrolled Kaiser Permanente Southern California health plan was done. Eligible were 5- to 19-years old between January 1, 2008, through December 31, 2013, received an ophthalmologic or optometric refraction. Electronic medical records reviewed demographic data, refraction results, exercise data. Prevalence relative risks (defined as ≤-1.0...

10.2147/opth.s164641 article EN cc-by-nc Clinical ophthalmology 2018-08-01

To illustrate that corneal neuralgia may be the basis for refractory dry eye syndrome after laser-assisted in situ keratomileusis (LASIK).The methodology used is of a retrospective medical record review small case series.Three male patients, aged 30 to 48 years, referred 2012 treatment within 1 year LASIK or enhancement are reported. Each patient gave history pain, light sensitivity, and difficulty with visual activities beginning 2 months enhancement. Best-corrected acuity was 20/15 20/20...

10.1097/opx.0000000000000652 article EN cc-by-nc-nd Optometry and Vision Science 2015-07-08

A 64-year-old female with mild stage primary open angle glaucoma underwent uncomplicated SLT of the right eye. On post-operative day 1, patient presented pain, discomfort, and photophobia treated eye was found to have microcystic corneal edema, markedly reduced visual acuity, elevated intraocular pressure (IOP) 42 mm Hg. The started on oral acetazolamide topical Brinzolamide/Brimonidine twice a day. 2, IOP improved 15 Hg edema had resolved, but diffuse stromal Descemet’s folds remained...

10.62856/djcro.v6.41 article EN Duke journal of case reports in ophthalmology. 2025-03-03

The purpose of this study was to evaluate the impact prosthetic replacement ocular surface ecosystem (BostonSight PROSE, Boston Foundation for Sight, Needham, MA) treatment, utilizing customized scleral devices, on visual acuity, function, and changes in patients with chronic graft-versus-host disease (cGVHD). A retrospective analysis performed 79 eyes 40 cGVHD referred University Southern California department ophthalmology between November 2009 July 2013 PROSE treatment. This included an...

10.1016/j.bbmt.2015.07.027 article EN cc-by-nc-nd Biology of Blood and Marrow Transplantation 2015-08-01

Most patients with diabetes have little or no retinopathy on initial examination. Tracking the long-term outcomes of these may increase our understanding how to best provide follow-up treatment.To assess many minimal require retinal intervention within 2 years evaluation.This retrospective cohort study assessed who underwent screening for diabetic a telemedicine program at Kaiser Permanente Southern California and had fundus photographs.Retinal interventions performed photographs.Patients...

10.1001/jamaophthalmol.2018.6912 article EN JAMA Ophthalmology 2019-02-07

To report a case of persistent epithelial defects in patient with ocular chronic graft-versus-host disease that required coordinated modulation systemic immunosuppressive treatment and overnight wear Prosthetic Replacement the Ocular Surface Ecosystem (BostonSight PROSE, Needham, MA) devices to achieve surface healing.The 38-year-old male who presented 2-year history disease, burning, pain, light sensitivity, 3-week bilateral corneal is presented. Standard therapies an initial PROSE...

10.1097/opx.0000000000001003 article EN Optometry and Vision Science 2016-10-13

Purpose: To evaluate the use of Prosthetic Replacement Ocular Surface Ecosystem (PROSE) scleral lens treatment as an alternative to keratectomy in patients with symptomatic Salzmann's nodular degeneration (SND).Methods: A retrospective chart review from July 2009 May 2013 identified 9 SND who were referred for PROSE evaluation.Patients did not complete fitting or had other corneal comorbidities affecting vision excluded study, and 7 eyes 4 included.Three pseudophakic 1 patient was phakic,...

10.1016/j.sjopt.2014.06.001 article EN cc-by-nc-nd Saudi Journal of Ophthalmology 2014-06-18

Unused or rarely used instruments in standard surgical trays can unnecessarily increase costs. Prior studies have demonstrated the practicality and cost savings of reduced instrument tray sizes various subspecialties. This study describes results estimated from a for vitrectomy surgery at large, tertiary academic medical center.Common usage patterns by one retina surgeon were reviewed was created implemented successive surgeries. Need opening previously utilized larger recorded. Estimated...

10.1186/s40942-020-00215-2 article EN cc-by International Journal of Retina and Vitreous 2020-06-17

To describe the presentation and management of a patient with epithelial versus fibrous downgrowth following trabeculectomy surgery review relevant literature regarding this complication after intraocular surgery.A 52-year-old monocular African-American woman was referred for presumed surgery. The initially treated intracameral injections 5-fluorouracil (x2) bevacizumab (x1). Cataract extraction, membranectomy, third injection were performed. Intraocular pressure (IOP) elevation subsequently...

10.1016/j.ajoc.2021.101183 article EN cc-by-nc-nd American Journal of Ophthalmology Case Reports 2021-07-27

To describe a previously unreported method for optimizing early intraocular pressure-lowering in non-valved aqueous shunt surgery, and to report pilot results from case series.We of 30 eyes that underwent Baerveldt-350 implantation with adjunctive goniotomy, addition 3 needle-puncture fenestrations, enhance pressure lowering facilitate higher steroid dosing before spontaneous ligature dissolution.In patients open-angle glaucoma, goniotomy is safe effective procedure when performed...

10.1016/j.ajoc.2023.101950 article EN cc-by-nc-nd American Journal of Ophthalmology Case Reports 2023-11-03

Since the publication of BEAT-ROP in 2011, intravitreal bevacizumab (IVB) has become increasingly common for treatment posterior type 1 retinopathy prematurity (ROP). However, long-term data on safety and efficacy IVB ROP are lacking. Vitreous hemorrhage following injections have been rarely reported infants with ROP, need these hemorrhages remains question. Here, authors report a case bilateral vitreous premature infant within 2 weeks bevacizumab. These resolved without intervention...

10.3928/23258160-20181101-11 article EN Ophthalmic surgery, lasers & imaging retina 2018-11-01

On Being a Doctor4 August 2015First CodeChristos Theophanous, BAChristos BAFrom Keck School of Medicine, University Southern California, Los Angeles, California.Search for more papers by this authorAuthor, Article, and Disclosure Informationhttps://doi.org/10.7326/M15-0195 Audio Reading - “First Code” Audio. Michael A. LaCombe, MD, Annals Associate Editor, reads "First Code," C. Theophanous. Your browser does not support the audio element. player progress bar Step backward in current track...

10.7326/m15-0195 article EN Annals of Internal Medicine 2015-08-03

<b><i>Background/Aims:</i></b> To report the case of a 77-year-old male with blind, painful eye, referred for suspected corneal mass, finding choroidal B-cell lymphoma on pathology enucleated globe. <b><i>Methods:</i></b> This is retrospective single patient. <b><i>Results:</i></b> A longstanding history poor vision in left eye was scarred, vascularized mass. The patient had reported occasional mild ocular discomfort and...

10.1159/000486039 article EN Ocular Oncology and Pathology 2018-01-01

Cataracts are among the most common causes of childhood vision loss worldwide. This study seeks to identify differentially expressed proteins in aqueous humor pediatric cataract patients. Samples were collected from and adult patients subjected mass spectrometry-based proteomic analysis. cataracts grouped by subtype compared samples. Differentially each identified. Gene ontology analysis was performed using WikiPaths for subtype. Seven ten included study. Of samples, all seven (100%) male,...

10.3390/ijms24109040 article EN International Journal of Molecular Sciences 2023-05-20

Medical student education on military health topics is critical in ensuring optimal future care for service members and their families.Keck School of Medicine the University Southern California (Keck SOM) students were invited to participate an anonymous, voluntary, online survey ("Pre") rating level interest, awareness, exposure comfort with issues a 5-point Likert scale. A student-organized program four voluntary lectures discussing health-related was then implemented. Students re-take...

10.4103/1357-6283.188754 article EN Education for Health 2016-01-01

Background: Dry eye disease is a multifactorial whose pathogenic mechanisms have not been investigated rigorously. The objective of this study was to evaluate the utility Prosthetic Replacement Ocular Surface Ecosystem (PROSE) treatment in management patients with intrinsic evaporative dry refractory conventional therapies. Design: A retrospective clinical cohort therapies seen between July 1, 2009 and May 31, 2012 at USC Eye Institute, tertiary referral center. Participants: 36 eyes 21 that...

10.4172/2155-9570.1000521 article EN cc-by Journal of Clinical & Experimental Ophthalmology 2016-01-01

Ad Libitum19 July 2016ten fortyChristos Theophanous, BAChristos BAFrom Keck School of Medicine the University Southern California, Los Angeles, California.Search for more papers by this authorAuthor, Article, and Disclosure Informationhttps://doi.org/10.7326/M16-0810 Audio Reading - “ten forty” Audio. Michael A. LaCombe, MD, Annals Associate Editor, reads "ten forty," C. Theophanous. Your browser does not support audio element. player progress bar Step backward in current track Play...

10.7326/m16-0810 article EN Annals of Internal Medicine 2016-07-18
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