Find a Specialist

Dr. David Portney is a comprehensive ophthalmologist at Grosinger, Spigelman & Grey who specializes in cataract and refractive surgery along with the medical management of diabetic eye disease and glaucoma. Trained from undergraduate through medical school, internship, and residency at the University of Michigan—including ophthalmology residency at the Kellogg Eye Center—he brings a consistent standard of excellence and a thoughtful, patient-first approach. In the clinic and surgery center, Dr. Portney focuses on clear communication and shared decision-making. He offers modern cataract surgery with advanced lens options, evaluates candidacy for laser vision correction, and guides patients with chronic conditions such as diabetes and glaucoma using current, evidence-based care. Patients appreciate his attentive manner, practical explanations, and commitment to seamless experiences before, during, and after treatment. His goal is to ensure every visit ends with clarity and confidence about the next steps.

Dr. Matthew Pieters is a board-certified ophthalmologist at Fraser Eye Care Center who specializes in anterior segment and cataract surgery. He provides patient-centered, evidence-based care, helping people understand their options and choose personalized treatment plans that fit their visual goals and lifestyle. In addition to surgical care, he offers comprehensive ophthalmology services and partners closely with the care team to ensure a smooth experience before and after surgery. Dr. Pieters graduated summa cum laude from Washington University in St. Louis and earned his medical degree at Emory University School of Medicine. He completed an ophthalmology residency at the renowned Wills Eye Hospital and an internship at St. Francis Hospital. Originally from the Chicago suburbs, he is proud to serve patients across metro Detroit with clear communication, attention to detail, and a calm, supportive bedside manner.

Dr. Sean Hansen is a board-certified ophthalmologist who provides comprehensive eye care, including medical and surgical treatment for common eye diseases. He performs cataract surgery and offers advanced lens options, including premium intraocular lens implants and laser-assisted cataract surgery, to help patients meet their vision goals. After earning his medical degree from the Medical College of Wisconsin, Dr. Hansen completed internship training at St. Joseph Mercy Hospital in Ann Arbor and ophthalmology residency at the University of Michigan’s Kellogg Eye Center. He cares for patients with cataracts, glaucoma, macular degeneration, and diabetic eye disease, and he performs minimally invasive glaucoma surgery with the iStent when appropriate. Dr. Hansen focuses on listening closely, explaining choices clearly, and helping patients feel confident about their care.

Dr. Xihui Lin is an ophthalmologist at Kresge Eye Institute who cares for patients with uveitis, vitreoretinal conditions, and related eye diseases. He focuses on careful diagnosis of retinal and inflammatory eye problems and partners with patients on treatment plans that prioritize both vision outcomes and day-to-day quality of life. Dr. Lin completed medical school and residency training at the University of Texas Southwestern Medical Center and pursued fellowship training at Kresge Eye Institute. His clinical and academic work includes research and publications on topics such as uveitis, diabetic macular edema, retinopathy of prematurity, retinal vascular conditions, and advanced retinal imaging. He brings this evidence-based perspective to each visit, emphasizing clear communication and thoughtful follow-up.

Dr. Sarah Jayne Garnai is a comprehensive ophthalmologist who enjoys caring for adults with both routine and complex eye concerns. She offers thorough eye exams, helps patients navigate blurry or fluctuating vision, and tailors treatment plans for conditions such as cataracts, astigmatism, and eyelid or ocular surface disease. Dr. Garnai values clear communication and shared decision-making—she takes time to explain test results, demonstrate how medications are used, and review what to expect before and after procedures. She graduated from Harvard Medical School and completed ophthalmology residency at the University of Michigan. In clinic, her goal is simple: to help people see comfortably and confidently so they can focus on the moments that matter at work, at home, and on the road.

Dr. Grace Meng Wang is a pediatric ophthalmologist who provides diagnosis and treatment for eye conditions in children. She cares for families dealing with strabismus (eye misalignment), amblyopia (lazy eye), and related childhood vision problems, and she also treats pediatric lacrimal disorders, glaucoma, cataracts, and inherited eye diseases. Dr. Wang earned her medical degree at Johns Hopkins School of Medicine (2012) and completed ophthalmology residency training at the University of Michigan (2016). Her clinical work includes evaluating children with crossed or wandering eyes and helping guide families through treatment options and follow-up plans. She is committed to helping parents understand what a diagnosis means for vision development and what to expect from monitoring or treatment over time.

Dr. Liesel M. Zima is a comprehensive ophthalmologist who diagnoses and treats a wide range of eye conditions, with a focus on medical retina and cataract surgery. She joined Kalamazoo Ophthalmology in July 2018 and provides care designed to protect vision and support long-term eye health. Dr. Zima graduated from the University of Michigan, where she majored in neuroscience and minored in music. She earned her medical degree from the University of Michigan Medical School in 2014 and received clinical honors in ophthalmology. She completed her ophthalmology residency at Indiana University and the Glick Eye Institute. During training, she participated in research in pediatric ophthalmology, macular degeneration, vitreoretinal surgery, and cataract surgery. Dr. Zima is board-certified by the American Board of Ophthalmology and is a member of the American Academy of Ophthalmology and the American Society of Cataract and Refractive Surgeons.

Dr. Farida Hakim is a cornea, cataract, and refractive surgery specialist at the University of Michigan. She treats the full spectrum of corneal disorders and offers advanced options for vision correction and ocular surface rehabilitation. Her clinic visits emphasize education, shared decision-making, and careful follow-up, whether a patient needs cross-linking for keratoconus or lens-based refractive care. Dr. Hakim earned her medical degree from the University of Chicago Pritzker School of Medicine and completed ophthalmology residency at the University of Chicago. At Kellogg Eye Center she sees patients at multiple locations and works closely with the Cornea & Refractive Surgery Service.

Dr. Daniel Kasprick is an ophthalmologist who provides comprehensive medical and surgical eye care, with training that emphasizes careful diagnosis and practical treatment planning. He earned his medical degree from the University of Michigan Medical School and completed residency training in medical and surgical ophthalmology at the Kellogg Eye Center at the University of Michigan. After residency, Dr. Kasprick served as a faculty member and Chief Resident, contributing to resident surgical education. He began practicing in Rochester Hills in 2018 and later established a practice location in Lake Orion to expand access for patients in Oakland County. He values long-term relationships with patients and focuses on clear, step-by-step explanations so people feel informed and comfortable with their care.

Dr. Ryan Jaber is a board-certified, fellowship-trained ophthalmologist who specializes in cataract, cornea, and external diseases of the eye. He offers both medical and surgical care for corneal conditions such as dry eye disease, Fuchs' dystrophy, keratoconus, pterygium, and corneal infections, and he tailors treatment plans to help patients see more comfortably and clearly. Dr. Jaber also performs routine and complex cataract surgery and provides advanced corneal transplant procedures when needed. He completed residency training at SUNY at Buffalo Affiliated Hospital and fellowship training at the Cole Eye Institute at Cleveland Clinic, after earning his medical degree from Dartmouth Medical School. He has published in peer-reviewed journals and collaborates with the local eye bank to support high-quality corneal care.

Dr. Jacob Diskin is a comprehensive ophthalmologist with special interests in cataract, refractive, and glaucoma surgery. He emphasizes attentive listening and collaborative planning so patients fully understand their diagnosis and choices, from nonsurgical therapies to advanced surgical options. Dr. Diskin manages a wide range of conditions—including dry eye disease, diabetic eye disease, macular degeneration, uveitis, and glaucoma—and tailors care plans using current evidence and modern technology. A Michigan native, he earned his MD at Wayne State University School of Medicine and completed ophthalmology residency at the Kresge Eye Institute, finishing his training in 2023. He enjoys educating patients about lens choices and recovery after cataract surgery and offers minimally invasive procedures when appropriate to reduce glaucoma medications. Dr. Diskin’s approach blends precision in the operating room with clear, practical guidance at every visit, helping patients make confident decisions and maintain comfortable, long-term vision.

Dr. Pimkwan Jaru-Ampornpan is an American board-certified ophthalmologist with subspecialty training in oculofacial plastic and reconstructive surgery. She focuses on conditions involving the eyelids, orbit, and lacrimal (tear) system, and she is known for careful evaluation and surgical planning for both functional and reconstructive concerns around the eyes. She graduated with academic distinction from Harvard University and earned her medical degree from Vanderbilt University School of Medicine. Dr. Jaru-Ampornpan completed ophthalmology residency training at the University of Wisconsin–Madison and then pursued a two-year, ASOPRS-accredited fellowship in Ophthalmic Plastic and Reconstructive Surgery at the University of Michigan’s Kellogg Eye Center. In her care, she prioritizes clear communication, realistic expectations, and a personalized approach so patients understand their options and feel supported through recovery.

Dr. Aleksey I. Mishulin is an ophthalmologist specializing in complex and refractive cataract surgery, LASIK, and minimally invasive glaucoma procedures. He combines advanced technology with a practical, step-by-step approach to help patients choose the option that best fits their vision, lifestyle, and recovery goals. He also provides comprehensive eye care and enjoys educating patients about what to expect before and after surgery. Dr. Mishulin earned his medical degree from Wayne State University School of Medicine and completed his ophthalmology residency at the Kresge Eye Institute in Detroit. He teaches residents and fellows as an Associate Professor at Wayne State University, with interests that include refractive surgery, premium intraocular lenses, and high-resolution ophthalmic imaging. Dr. Mishulin was among the first in Michigan to be named a Fellow of the World College of Refractive Surgery & Visual Sciences and was part of its inaugural group of surgeons board-certified in refractive surgery. He also participates in international surgical outreach, helping restore sight for patients with limited access to care.

Dr. Sayeeda Fatima is a comprehensive ophthalmologist with Northwest Eye Physicians. She cares for patients with a wide range of eye conditions and provides both medical management and surgical care, including treatment for cataracts, glaucoma, and diabetic eye disease. Dr. Fatima earned her undergraduate and medical degree through Wayne State’s Med-Start Program and completed her ophthalmology residency at Kresge Eye Institute. She has been with Northwest Eye Physicians since 2016 and is dedicated to providing exemplary care for her patients. She is affiliated with Ascension Providence Hospital and Straith Hospital, as well as Novi Surgical Center, where she performs surgery, and she is board certified by the American Board of Ophthalmology. Patients can expect practical guidance, clear explanations, and a focus on protecting long-term vision and eye health.

Dr. Joshua R. Ehrlich is a glaucoma specialist and clinician-scientist at the University of Michigan's Kellogg Eye Center. He cares for patients with glaucoma, cataracts, and anterior segment disease, offering both medical therapy and a range of surgical options when appropriate. He completed undergraduate education at Washington University in St. Louis, earned his MD from Weill Cornell Medical College, and received an MPH from Columbia University's Mailman School of Public Health with a focus on epidemiology. Dr. Ehrlich completed ophthalmology residency at Wills Eye Hospital and then pursued fellowship training in glaucoma at the Kellogg Eye Center. In addition to clinical care, his research focuses on understanding how vision impairment affects health, disability, and quality of life—particularly for older adults—and on improving how eye care is measured and delivered.

Sanah Aslam, M.D., is a Refractive Cataract and Complex Anterior Segment Surgery Fellow with Oakland Ophthalmic Surgery, serving patients in Birmingham and Troy, MI. She is passionate about providing exceptional, patient-centered care with a focus on the latest innovations in vision correction and cataract surgery. Dr Aslam is originally from Georgia and completed a rigorous 7-year BS/MD program, earning both her undergraduate and medical degrees through an accelerated and highly competitive track. She went on to complete her ophthalmology residency in Detroit, where she distinguished herself through excellence in clinical care, research, and education. During residency, she received top honors for her research contributions, her score on the Ophthalmic Knowledge Assessment Program (OKAP) examination, and was nominated by her fellow residents for the Most Compassionate Physician Award. Dr. Aslam is actively involved in several national ophthalmology organizations, including the American Academy of Ophthalmology (AAO), Women in Ophthalmology (WIO), and the American Society of Cataract and Refractive Surgery (ASCRS). She is committed to lifelong learning and is always enthusiastic about integrating emerging technologies and surgical techniques into her practice to enhance patient outcomes. Outside of the clinic and operating room, Dr. Aslam enjoys an active lifestyle that includes pilates and biking. She also finds joy in gardening and experimenting with new recipes in the kitchen.

Dr. Brian C. Stagg is an ophthalmologist who specializes in the diagnosis and treatment of glaucoma. He also performs cataract surgery and has a special interest in geriatric ophthalmology, helping patients manage chronic eye conditions with a focus on preserving function and quality of life. He earned his medical degree at the University of Utah and completed ophthalmology residency training at the John A. Moran Eye Center. He also completed graduate training in health and healthcare research at the University of Michigan (M.S.) and later pursued glaucoma fellowship training at the Duke Eye Center. Dr. Stagg’s research focuses on using modern technology to personalize glaucoma care so that each patient receives appropriate treatment and monitoring over time. He has been recognized through acceptance into the University of Utah’s Vice President’s Clinical & Translational (VPCAT) Research Scholars Program.

Dr. Alexander Valentine is a comprehensive ophthalmologist and cataract surgeon who enjoys helping people see more clearly at every stage of life. He welcomes routine eye exams as well as complex cases, and takes time to explain findings, treatment options, and what to expect before and after procedures. Whether prescribing new glasses, monitoring conditions over time, or planning cataract surgery, his goal is to pair clear communication with evidence-based care so you can make confident choices about your vision. Dr. Valentine completed medical school at Boston University School of Medicine and ophthalmology residency at the University of Michigan, where he trained in advanced cataract techniques and the medical management of common eye diseases. He collaborates closely with subspecialists at the Kellogg Eye Center when needed so patients receive the right care at the right time. Patients appreciate his calm, thorough approach and his emphasis on comfort, safety, and long-term visual outcomes.

Maxwell Dixon, M.D. is a board-certified, fellowship-trained ophthalmologist at Huron Ophthalmology, serving patients in Ann Arbor. Dr. Dixon specializes in cataract surgery and glaucoma treatment. He is trained in the latest surgical techniques including small-incision cataract surgery, advanced technology intraocular lenses, and micro-invasive glaucoma surgery in addition to traditional glaucoma surgeries for advanced disease. He works closely with patients to match treatment options to their visual goals and daily activities. Dr. Dixon is a graduate of the University of Michigan Medical School. He completed his residency in ophthalmology and fellowship in glaucoma at Washington University in St. Louis. He returned to his home state of Michigan to join Huron Ophthalmology in 2021. He is committed to providing careful diagnostics, thoughtful counseling, and outcomes that prioritize safety, clarity, and long-term stability for his patients in southeast Michigan. Dr. Dixon is a member of the American Academy of Ophthalmology and the American Glaucoma Society. He has also published and reviewed numerous peer-reviewed articles in journals such as JAMA Ophthalmology, Ophthalmology Glaucoma, Ophthalmology Retina, Ophthalmic Genetics, and Cornea and presented at medical conferences nationally. Outside of work, he enjoys spending time with his family, traveling, photography, and cooking.

Dr. Breanna Tracey is a clinical instructor in ophthalmology who cares for children and adults with eye alignment and vision development concerns. At the Kellogg Eye Center, she sees patients in the Pediatric Ophthalmology & Adult Strabismus Clinic, providing thoughtful evaluations and collaborative care plans tailored to each family. Her clinical interests include amblyopia and a full spectrum of strabismus conditions, and she is committed to helping patients understand their diagnoses and treatment options in clear, approachable language. Dr. Tracey earned her medical degree from the University of Maryland School of Medicine and completed her ophthalmology residency at the Kellogg Eye Center–University of Michigan. She welcomes patients in Ann Arbor and at Trinity Health Oakland Hospital, and works closely with colleagues across U-M Health to coordinate care when needed. Patients can expect careful examinations, evidence-based recommendations, and a supportive environment designed to help them reach their best possible vision.

Dr. Abigail T. Fahim is a retina specialist at the University of Michigan's Kellogg Eye Center with a focus on inherited retinal diseases and medical retina. She works with patients and families facing conditions that can affect central or peripheral vision and helps guide evaluation, long-term monitoring, and care planning. Her clinical interests include retinitis pigmentosa, choroideremia, cone and cone-rod dystrophies, X-linked retinoschisis, Stargardt disease, Best disease, and other macular dystrophies, as well as autoimmune retinopathy and cancer-associated retinopathy. Dr. Fahim earned her MD from Baylor College of Medicine and her PhD from the University of Michigan. She completed ophthalmology residency and a Medical Retina fellowship at the Kellogg Eye Center. She also leads research on retinal pigment epithelial cell dysfunction in inherited retinal disease, using laboratory models to better understand disease mechanisms and support future therapies.

Dr. Alicia M. Eby is a board-certified comprehensive ophthalmologist with Traverse City Eye, seeing patients in Traverse City and Kalkaska, Michigan. She provides full-scope eye care, from routine and problem-focused exams to diagnosis and treatment planning, and she values practical recommendations that fit a patient's day-to-day life. Dr. Eby practices comprehensive ophthalmology with special interest in cataracts, glaucoma, and geriatric ophthalmology. She completed her undergraduate degree at Western Michigan University and received her medical degree from Wayne State University. She then completed her ophthalmology residency at Kresge Eye Institute in Detroit, Michigan. Throughout her education and training, she took on leadership roles including Chief Resident and held leadership positions in several student organizations. Originally from Ontario, Canada, she enjoys living and working in Northern Michigan and caring for the community she calls home.

Dr. Lev Prasov is a physician-scientist who cares for patients in comprehensive ophthalmology and ophthalmic genetics. He focuses on understanding the genetic basis of eye disease, including isolated and syndromic developmental ocular disorders, and works with patients and families who may benefit from a genetics-informed evaluation. Dr. Prasov completed his medical and graduate training through the University of Michigan Medical Scientist Training Program (MSTP), earning an MD and a PhD in Human Genetics. He completed ophthalmology residency training at the University of Michigan Kellogg Eye Center and fellowship training in Ophthalmic Genetics at the National Eye Institute (NIH). In addition to his clinical work, he is a NIH/NEI K08 scholar and has received recognition for early-career clinician-scientist work.

Dr. Taylor Fields is an ophthalmologist completing advanced oculoplastic surgery training. He cares for patients with medical and reconstructive concerns of the eyelids, orbit, and tear drainage system, and he prioritizes clear communication so every patient understands their options and recovery plan. Dr. Fields graduated magna cum laude from the University of Georgia with a B.S. in Biochemistry and Molecular Biology, earned his medical degree at the Medical College of Georgia, and completed both his internship and ophthalmology residency at Henry Ford Hospital in Detroit, Michigan. During his training, he has presented at the American Society of Cataract and Refractive Surgery and American Uveitis Society annual meetings, and his work has been published in journals such as Ophthalmology and Investigative Ophthalmology & Visual Science. Outside of medicine, Dr. Fields enjoys running, golf, snowboarding, and hiking with his dog, Bear.