Katherine E. Duncan, MD is an ophthalmologist whose professional work brings together comprehensive eye care, cataract surgery, and oculoplastic surgery. In practical terms, that means her field is not limited to asking patients to read tiny letters from across the roomthe classic eye-chart ambush. It also includes medical and surgical care involving the eyelids, tear ducts, tissues around the eye socket, and vision-related concerns that can affect comfort, confidence, and daily life.
Dr. Duncan practices with GBMC Health Partners Ophthalmology in Towson, Maryland, and serves as Lead Provider at the GBMC Health Partners Eye Center at Joppa Road. Her public professional profile lists a medical degree from the University of Maryland School of Medicine, ophthalmology residency training through the University of Maryland Medical System, and fellowship training in orbital, oculoplastic, and aesthetic surgery at the University of Pittsburgh Medical Center.
This profile explores Katherine E. Duncan, MD through the lens of her clinical training, ophthalmology work, public health education, published scholarship, and global eye-care efforts. It is intended as an informational overview, not as personal medical advice or a substitute for a direct evaluation by a qualified eye-care professional.
Who Is Katherine E. Duncan, MD?
Katherine E. Duncan, MD is a board-certified ophthalmologist associated with comprehensive ophthalmology, cataract surgery, and oculoplastic surgery. Her career sits at an interesting intersection: one part medical eye care, one part surgical precision, and one part the practical reality that the eyelids, tear ducts, and surrounding tissues are not merely decorative accessories for the eyeball.
Her role at GBMC Health Partners places her within a multidisciplinary eye-care setting that includes ophthalmologists, optometrists, optical services, and specialty support for patients ranging from children to older adults. That team-based environment matters because eye symptoms do not always fit neatly inside one category. A patient may arrive because of blurred vision, dry eyes, drooping eyelids, skin changes near the eye, or a concern related to cataracts or diabetes. The best next step depends on a careful diagnosis rather than a one-size-fits-all answer.
Education and Professional Training
Medical School and Ophthalmology Residency
Dr. Duncan earned her Doctor of Medicine degree from the University of Maryland School of Medicine and completed ophthalmology residency training through the University of Maryland Medical System. Ophthalmology residency is a rigorous period of supervised clinical and surgical training in diagnosing and treating eye disease. Training includes work across broad areas such as cataracts, glaucoma, retina, cornea, neuro-ophthalmology, pediatric ophthalmology, and oculoplastics.
The University of Maryland’s ophthalmology residency curriculum includes rotations in oculoplastics and neuro-ophthalmology alongside general and subspecialty eye care. That type of training helps physicians build the broad clinical foundation required for comprehensive ophthalmology before pursuing additional subspecialty experience.
Fellowship in Orbital, Oculoplastic, and Aesthetic Surgery
After residency, Dr. Duncan completed fellowship training in orbital, oculoplastic, and aesthetic surgery at the University of Pittsburgh Medical Center. Fellowship training is designed to provide added expertise in a focused area of medicine. In this specialty, the work centers on structures around the eye, including the eyelids, orbit, tear-drainage system, and nearby facial tissues.
Oculoplastic surgery can involve reconstructive, functional, traumatic, and aesthetic concerns. Depending on the patient and diagnosis, this may include evaluation of drooping eyelids, eyelid malposition, blocked tear ducts, orbital inflammation, facial injury, skin lesions near the eye, or eyelid changes that interfere with vision. It can also include cosmetic procedures, but the medical side is often just as important as the aesthetic sidebecause eyelids are surprisingly busy little body parts.
Clinical Focus: Comprehensive Ophthalmology and Oculoplastic Surgery
Comprehensive ophthalmology generally refers to broad medical and surgical eye care. Ophthalmologists evaluate vision changes, eye discomfort, common eye diseases, cataracts, dry eye symptoms, retinal concerns, glaucoma risk, and other conditions that may affect the eyes or vision.
Dr. Duncan’s public profiles identify particular professional interests in comprehensive ophthalmology, cataract surgery, and oculoplastic surgery. This combination can be valuable for patients whose concerns involve both vision and the tissues around the eye. For example, eyelid changes can sometimes affect the visual field, eye comfort, tear distribution, or the ability to fully close the eye.
Cataract Care
A cataract occurs when the eye’s normally clear lens becomes cloudy. Many people describe cataract-related vision changes as looking through a foggy window, a dirty windshield, or the world’s least helpful Instagram filter. Symptoms may include blurry vision, glare, faded colors, trouble seeing at night, and difficulty reading or driving.
Cataract surgery involves removing the clouded natural lens and replacing it with an artificial lens. It is generally performed as an outpatient procedure, but the timing, risks, lens choices, and expected outcome should always be discussed individually with an ophthalmologist.
Dry Eye and Eyelid Health
Dry eye disease can cause burning, scratchiness, blurred vision, redness, sensitivity to light, and a frustrating feeling that there is a grain of sand in the eye even when no beach vacation is involved. The National Eye Institute notes that dry eye can occur when the eyes do not make enough tears or when tears do not function properly.
Dr. Duncan has also participated in medically reviewed public education related to dry eye. A Healthline article reviewed by Katherine E. Duncan, MD discusses dry eye symptoms, risk factors, diagnosis, and questions patients may consider asking an eye specialist.
Eyelid health and dry eye can overlap. The eyelids help distribute tears across the surface of the eye, protect the cornea, and support a stable tear film. When eyelids do not close well, turn inward or outward, droop significantly, or develop chronic inflammation, patients may experience irritation, excessive tearing, dryness, or blurred vision.
Thyroid Eye Disease and Orbital Concerns
Orbital and oculoplastic specialists may also evaluate conditions that affect tissues around the eye. One example is thyroid eye disease, also called Graves’ eye disease. It can cause symptoms such as bulging eyes, eye dryness, double vision, eyelid swelling, pain or pressure around the eyes, and difficulty moving the eyes. Treatment varies widely depending on severity and may involve monitoring, lubricating drops, medication, surgery, or care coordinated among multiple specialists.
Not every red, watery, puffy, or uncomfortable eye means a person has thyroid eye disease. Still, persistent symptoms deserve appropriate evaluation, particularly when they occur with double vision, eye pain, sudden vision changes, or difficulty closing the eyelids.
Professional Credentials and Board Certification
Public reviewer profiles describe Dr. Duncan as certified by the American Board of Ophthalmology. Board certification is one useful credential patients may consider when reviewing a physician’s background. The American Board of Ophthalmology explains that certification reflects completion of accredited ophthalmology training and a formal evaluation process. Patients can use the organization’s physician-search tool to verify a physician’s current certification status directly.
Credentials are important, but they are only one part of choosing an eye-care professional. Patients may also consider a physician’s clinical focus, hospital or health-system affiliation, communication style, appointment availability, insurance participation, location, and whether the physician treats the specific concern involved.
Scholarship and Medical Education
Dr. Duncan has contributed to the medical literature. She coauthored a 2015 review article titled Medical Management of Blepharitis, published in Current Opinion in Ophthalmology. The article addressed the challenge of managing blepharitis, a common condition involving inflammation of the eyelids, and reviewed treatment approaches including eyelid hygiene, medications, and evolving management strategies.
Blepharitis can be chronic and stubborn. It is not usually a one-time “use this magical product and never think about your eyelids again” situation. For many people, management may involve consistent eyelid care, attention to symptoms, and follow-up with an eye-care professional when symptoms persist or worsen.
In addition to scholarly work, Dr. Duncan has served as a medical reviewer for consumer health content. Her public reviewer profile lists medically reviewed eye-health articles, including educational material related to dry eye and wet age-related macular degeneration. Medical review does not replace an in-person examination, but it plays a useful role in helping readers encounter clearer, clinically checked information online.
Project Theia and Global Eye-Care Work
Another notable part of Dr. Duncan’s professional story is her work as a cofounder of Project Theia, a nonprofit organization focused on specialized surgical care, surgeon training, and sustainable health-care efforts in low-income, middle-income, and developing countries. Project Theia identifies Dr. Duncan and fellow oculoplastic surgeon Jenny Yu, MD, as the organization’s cofounders.
Global eye-care programs can address more than an immediate medical problem. Sustainable work may include supporting local clinical teams, building training opportunities, improving access to equipment, and helping communities develop long-term solutions. A successful program is not simply about arriving with medical supplies, taking a dramatic group photo, and disappearing into the sunset. It is about partnerships, training, continuity, and respect for local needs.
Project Theia’s focus on specialized surgical care and professional education reflects a broader idea in global health: improving access to care works best when it supports the people and systems that remain in the community long after a visiting team has gone home.
What Patients May Want to Ask an Ophthalmologist
Patients considering an ophthalmology appointment may feel more prepared by writing down symptoms, questions, medications, prior eye surgeries, and family eye-health history. A few practical questions may include:
- What might be causing my symptoms or vision changes?
- Do I need additional testing, imaging, or a dilated eye examination?
- Could my eyelid position, tear drainage, or dry eye symptoms be contributing?
- What treatment options are available, and what happens if I wait?
- Are there warning signs that should prompt urgent care?
- Will this condition affect driving, reading, work, sports, or screen use?
- Should I coordinate care with another specialist, such as a primary-care physician, endocrinologist, dermatologist, or retina specialist?
Patients with sudden vision loss, a curtain-like shadow in vision, severe eye pain, major eye injury, sudden double vision, or chemical exposure should seek urgent medical attention rather than waiting for a routine appointment.
Experiences Related to Katherine E. Duncan, MD and Modern Eye Care
For many patients, an ophthalmology visit begins long before they sit in an exam chair. It starts at home, often with a small annoyance: eyes that feel dry after working on a computer, night-driving glare that seems more intense than it used to be, a drooping eyelid noticed in family photos, or the uncomfortable sensation that tears are constantly spilling over for no obvious reason.
These concerns can sound minor when described quickly. “My eye feels weird” is not the most detailed medical history in the world, but it is often where the real conversation begins. A good eye-care evaluation turns vague symptoms into more useful questions. Is the blur constant or intermittent? Does it affect one eye or both? Is there pain, pressure, redness, light sensitivity, tearing, itching, or double vision? Did symptoms appear gradually, or did they arrive suddenly and demand everyone’s attention like a smoke alarm at 2 a.m.?
In comprehensive ophthalmology, patients may encounter several familiar steps: visual-acuity testing, eye-pressure measurements, a slit-lamp examination, pupil dilation, imaging, or discussions about medications and lifestyle factors. These tests are not designed to make patients feel like contestants on a game show called “Guess Which Puff of Air Is Coming Next.” They help clinicians assess the eye’s surface, lens, retina, optic nerve, eyelids, and other structures that may affect vision or comfort.
For someone with cataract symptoms, the experience may involve deciding when blurred vision has become disruptive enough to consider surgery. That decision is personal. One person may be comfortable waiting; another may struggle with nighttime driving, reading, work tasks, or recognizing faces. The conversation is not only about whether a cataract exists. It is about how vision affects the person’s actual life.
For someone with dry eye or eyelid irritation, progress may feel less dramatic but no less meaningful. Relief might mean being able to use a computer without constant burning, wear contact lenses more comfortably, read without tears streaming down the face, or walk outdoors on a windy day without feeling as though the eyes are staging a rebellion.
Oculoplastic concerns can add another emotional layer. Eyelid drooping, tearing, skin lesions, facial asymmetry, or changes around the eyes may affect not only comfort and vision but also how a person feels when looking in the mirror. It is reasonable for patients to have questions about function, appearance, surgical recovery, scarring, safety, and expected results. A careful consultation should make room for all of them.
Experiences related to clinicians such as Katherine E. Duncan, MD also highlight the value of clear communication. Medical vocabulary can be useful, but it can also feel like being handed a dictionary during a fire drill. Patients benefit when a clinician explains the diagnosis in plain language, outlines the purpose of testing, reviews available options, and clarifies what symptoms should prompt urgent follow-up.
Eye care is not always a dramatic rescue scene. Often, it is prevention, monitoring, small improvements, and steady partnership over time. A routine examination may identify changes before vision is seriously affected. A discussion about dry eye may lead to better comfort. A cataract evaluation may help someone make a confident decision about surgery. An eyelid assessment may explain why the eyes feel tired, watery, irritated, or partially blocked.
That is the quiet value of ophthalmology: helping people preserve the ordinary moments that are easy to overlook until vision becomes difficult. Reading a menu, driving at dusk, seeing a child’s expression, watching a favorite movie, putting on makeup, spotting a curb, or simply opening the eyes in the morning without discomfortthose are not small things. They are daily life in high definition.
Conclusion
Katherine E. Duncan, MD is an ophthalmologist whose public professional profile reflects training in comprehensive ophthalmology, cataract surgery, and orbital, oculoplastic, and aesthetic surgery. Her work includes clinical practice at GBMC Health Partners, medical education contributions, public health-content review, and nonprofit involvement through Project Theia.
For readers researching eye-care professionals, the broader takeaway is simple: eye health involves much more than correcting blurry vision. The eyes, eyelids, tear system, orbit, and surrounding tissues all work together. When symptoms change, early evaluation and clear communication with a qualified professional can help protect both vision and quality of life.
