Marcus H. Colyer

ORCID: 0000-0003-4411-3130
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About
Contact & Profiles
Research Areas
  • Traumatic Ocular and Foreign Body Injuries
  • Intraocular Surgery and Lenses
  • Facial Trauma and Fracture Management
  • Retinal and Macular Surgery
  • Glaucoma and retinal disorders
  • Retinal Diseases and Treatments
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Ocular Infections and Treatments
  • Retinal Imaging and Analysis
  • Retinal and Optic Conditions
  • Restraint-Related Deaths
  • Trauma, Hemostasis, Coagulopathy, Resuscitation
  • Corneal surgery and disorders
  • Child Abuse and Related Trauma
  • Surgical site infection prevention
  • Ocular Diseases and Behçet’s Syndrome
  • Traumatic Brain Injury Research
  • Trauma and Emergency Care Studies
  • Burn Injury Management and Outcomes
  • Gun Ownership and Violence Research
  • Cerebral Venous Sinus Thrombosis
  • Disaster Response and Management
  • Corneal Surgery and Treatments
  • Vascular Malformations Diagnosis and Treatment
  • Ophthalmology and Eye Disorders

Uniformed Services University of the Health Sciences
2011-2025

Madigan Army Medical Center
2021-2025

Walter Reed National Military Medical Center
2012-2022

Military Health System
2015

Elman Retina Group
2010-2014

University of Health Sciences
2014

Kirklandside Hospital
2012

Walter Reed Army Institute of Research
2006-2011

MedStar Washington Hospital Center
2009-2010

Georgetown University
2010

Two patients developed postoperative ischemic optic neuropathy (ION) after laparoscopic radical prostatectomy. One operation was robotically assisted; the other performed with conventional technique. These new minimally invasive techniques offer many advantages, but they require steep supine head-flexed (Trendelenburg) positioning. Until are mastered by surgeons, operative times may be prolonged beyond those associated traditional As a result, ION occur more frequently.

10.1097/wno.0b013e31815b9f67 article EN Journal of Neuro-Ophthalmology 2007-12-01

Difficulties in the recruitment of adults with intellectual disability (ID) to research studies are well described but little studied. The aim this study was investigate difficulties recruiting a specific project, order inform future ID research.Individual semi-structured interviews were held between September 2009 and May 2010 people who had been involved as intermediaries project. These transcribed verbatim independently analysed by two researchers using Framework approach, then agreed...

10.1111/j.1365-2788.2012.01573.x article EN Journal of Intellectual Disability Research 2012-06-06

To assess whether an organised programme of prevention including the use a health promotion nurse noticeably improved recording and follow up cardiovascular risk factors cervical smears in general practice that had access to computerised cell recall.Randomised controlled trial.General inner London.All 3206 men women aged 30-64 registered with practice.The intervention group their ascertained followed by practitioner, whereas those control were managed practitioner alone.Recording blood...

10.1136/bmj.298.6671.433 article EN BMJ 1989-02-18

Purpose To determine the impact of traumatic brain injury (TBI) on visual outcomes in combat ocular trauma (COT) and association between TBI severity types injuries. Participants One hundred fifty-two US casualties sustained 207 globe/oculoplastic Methods Retrospective, hospital-based cross-sectional study service members injured during Operations Iraqi Freedom Enduring were treated by Ophthalmology Service at Walter Reed Army Medical Center screened for Defense Veterans Brain Injury from...

10.1097/htr.0b013e3181956ffd article EN Journal of Head Trauma Rehabilitation 2009-01-01

The incidence of eye injuries in military service members is high the combat setting. This first study that identifies primary reason for poor visual acuity (worse than 20/200).This a retrospective, noncomparative, interventional case series analyzing US Operation Iraqi and Enduring Freedom who were evacuated from theater operations to Walter Reed Army Medical Center 2001 through 2011. Primary outcome measures length follow-up, globe survival, anatomic causes blindness. Secondary included...

10.1097/ta.0000000000000666 article EN Journal of Trauma and Acute Care Surgery 2015-07-01

Purpose To evaluate the incidence, refractive error (RE) association, and distribution of atraumatic rhegmatogenous retinal detachment (RRD) in U.S. military service members (SMs).

10.1080/09286586.2024.2434733 article EN public-domain Ophthalmic Epidemiology 2025-01-23

BACKGROUND AND OBJECTIVE: To examine the outcomes of vitrectomy in ocular trauma with opaque cornea. PATIENTS METHODS: This retrospective study included 17 eyes 16 patients who underwent temporary keratoprosthesis or endoscopy at Walter Reed Army Medical Center, Washington, DC, from March 2003 to October 2010. RESULTS: A was used 8 (47%) and 9 (53%). Overall, number visual acuity 20/200 better improved 0 baseline 5 (29%) 6 months. The retinal detachment also 10 (59%) 3 (18%) CONCLUSION:...

10.3928/15428877-20120618-09 article EN Ophthalmic surgery, lasers & imaging retina 2012-07-01

Abstract Objective Reticular pseudodrusen (RPD), a key feature of age-related macular degeneration (AMD), are poorly detected by human experts on standard color fundus photography (CFP) and typically require advanced imaging modalities such as autofluorescence (FAF). The objective was to develop evaluate the performance novel multimodal, multitask, multiattention (M3) deep learning framework RPD detection. Materials Methods A developed detect presence accurately using CFP alone, FAF or both,...

10.1093/jamia/ocaa302 article EN Journal of the American Medical Informatics Association 2020-11-17

10.1007/s00417-009-1236-x article EN Graefe s Archive for Clinical and Experimental Ophthalmology 2009-11-21

To examine the incidence and etiology of corneal corneoscleral injuries in setting combat ocular trauma, to determine what effect these have on overall visual impairment from trauma.Retrospective, noncomparative, interventional case series, analyzing U.S. service members who were evacuated former Walter Reed Army Medical Center (WRAMC). Primary outcome measures types injuries, length follow-up at WRAMC, globe survival, anatomical causes blindness. Secondary included surgical procedures...

10.7205/milmed-d-16-00041 article EN Military Medicine 2017-03-01
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