Our Team
Meet the experienced and friendly team who makes Eyecare Associates Marshalltown the leading provider of vision care products and services in Marshalltown, Conrad, and Toledo.
Dr. Collin Edwards
Dr. Collin Edwards grew up in Spencer, Iowa, and earned his Bachelor of Science degree in Human Physiology from the University of Iowa in 2015. He went on to attend the University of Missouri-St. Louis College of Optometry, completing externships at OMNI Eye Services, Saint Louis University Ophthalmology, and Vance Thompson Vision. He earned his Doctor of Optometry degree in 2019.
Dr. Edwards is a member of the American Optometric Association and the Iowa Optometric Association and completed the Iowa Valley Leadership program in 2020. Outside of the office, Dr. Edwards is a devoted fan of the Iowa Hawkeyes and Los Angeles Rams. He enjoys weightlifting, tennis and playing with his dog. He especially values time spent with his wife and stepson.
Dr. Kacie Monroe
Dr. Monroe grew up on a farm near Conrad, Iowa and went on to attend the University of Northern Iowa in Cedar Falls, where she earned a Bachelor of Science in Biology in 2007. In 2011, she graduated from optometry school at Indiana University in Bloomington, Indiana. While in optometry school Dr. Monroe was active in volunteer organizations including VOSH (Volunteer Optometric Services to Humanity), Dr. Monroe also earned the David J. Kerko Low Vision Award and was honored as one of the Most Influential Women in Optical by Vision Monday magazine.
Dr. Monroe completed externships at a private practice in Kentucky specializing in pediatrics and vision therapy services, and at Bascom-Palmer Eye Institute, a world-renowned eye care hospital in Miami, Florida. In 2017, Dr. Monroe earned her Fellowship with Optometric Vision Development & Rehabilitation Association. This designation demonstrates her dedication to functional optometry and vision therapy.
Dr. Monroe practiced in a private practice in Cedar Rapids for 10 years after graduation before moving to Marshalltown to be closer to family in 2021. Dr. Monroe is passionate about providing excellent eye care for individuals of all ages and is excited to offer vision therapy and rehabilitation services as well. She enjoys bowling, golfing, and spending time with her husband and two children.
Dr. Connie J. Feldman
Dr. Feldman graduated from the University of Northern Iowa in 1994 with a Bachelor of Science Degree, majoring in Biology and Chemistry. She attended The Ohio State College of Optometry. She completed an externship at Dayton, VA Hospital during the fall of 1997. She also completed an Interdisciplinary Specialization in Geriatric for Health Professionals. She graduated from the Ohio State College of Optometry in 1998 with a Doctorate of Optometry. She was named the William Feinbloom Low Vision Student of the Year. She joined Eyecare Associates in July of 1998. She has served on the Young Professional Executive Board, the Noon Optimist Board, and the Elim Children Center Board. She has coached for her children at Marshalltown Area Soccer Club. She completed the Iowa Valley Leadership course in 2001. She is a member of Saint Francis of Assisi Parish, Noon Optimist Club, the Iowa Optometric Association and the American Optometric Association. She has three beautiful little girls at home.
Dr. Kyle Carnahan
Dr. Carnahan attended Washburn University in Topeka, KS where he played baseball and graduated with a Bachelor of Science in Biology in 2017. He went on to attend the University of Missouri – St. Louis College of Optometry where he completed externships at the Kansas City VA Hospital, Chickasaw Nation Medical Center in Ada, OK, and private practices in St. Louis, MO specializing in contact lenses and vision therapy. He was a recipient of the VSP Practice Excellence Award based on clinical and academic performance and commitment to enter the independent practice of optometry. He graduated in 2021 with a Doctorate of Optometry.
Dr. Carnahan spent 3 years after graduation serving on active duty in the U.S. Army and was stationed at Fort Carson in Colorado Springs, CO while practicing optometry at Evans Army Community Hospital.
Dr. Carnahan is an avid Iowa Hawkeye and St. Louis Cardinals fan. He and his wife both grew up in the Marshalltown area and are excited to be back home with their young daughter.
Rachel Brodin
Rachel is originally from Davenport and graduated from University of Northern Iowa in May of 2017 with a Bachelor of Arts degree in Organizational Leadership Management and a minor in Leisure, Youth, and Human Services.
Shortly after graduating, Rachel moved to Marshalltown and joined Eyecare Associates in June 2017. She currently serves as the Office Manager. One of her favorite parts of her role is building relationships with patients and helping create a positive experience for them. She also enjoys watching staff members grow professionally and develop new skills.
Rachel and her husband have two children. Outside of work, she enjoys spending time with family and friends, traveling, and making memories with those closest to her.
Alli Cole
Alli joined Eyecare Associates in 2022 as a Front Office Receptionist and has grown into a valued member of the team. In 2023, she expanded her role to include Vision Therapist, and in 2026 she stepped into the position of Co-Team Lead for the Front Office.
Vision therapy is where Alli’s passion truly shines. She finds deep fulfillment in getting to know her patients personally and walking alongside them on their journey to better vision. Whether it’s a small milestone or a life-changing breakthrough, Alli is invested in every step of her patients’ progress and the positive impact it brings to their daily lives.
Outside of the office, Alli enjoys outdoor adventures, rock and fossil hunting, and cooking. She lives in rural Marshalltown with her fiancé and youngest daughter.
Candice Callaway
Candice Callaway grew up in Liscomb, Iowa, where she continues to reside with her husband, Blake, and their two children, Emily and Aydien. She attended the BCLUW School District and graduated in 2009 before pursuing her education in cosmetology, earning her cosmetology degree in 2010. Candice later expanded her education in the medical field by obtaining degrees in Medical Administrative Assisting and Medical Coding, along with becoming a Credentialing Specialist.
Candice joined Eyecare Associates in 2019 and has continued to grow within the company through her dedication, versatility, and passion for helping others. Throughout her time there, she has taken on many important roles including Billing Coordinator, Credentialing Specialist, Front Office Co-Team Lead, and Vision Therapy Coordinator. Her experience in multiple areas of the office has given her extensive knowledge of daily operations and patient care.
What Candice enjoys most about her career is the people she works with each day. She values the relationships she has built with the staff and doctors, who have become like a second family to her. She loves helping patients from start to finish and appreciates how the entire team works together to create a positive experience.
One of the most rewarding parts of her job is seeing patients succeed through Vision Therapy and witnessing the benefits it brings to their lives. Candice also enjoys supporting and training staff in areas such as insurance and communication while striving to be a dependable and encouraging team member for everyone she works with.
Autumn Sewell
Autumn is a proud Iowa native who has called the Marshalltown area home since 2001. A graduate of East Marshall High School, she has dedicated her career to serving others through work in healthcare and community services. In July 2024, she joined Eyecare Associates as a Patient Care Technician and quickly advanced into the role of Team Lead in March 2025. She is currently working toward becoming a Certified Paraoptometric.
Autumn is passionate about creating a warm, welcoming environment where every patient feels valued, comfortable, and confident in the care they receive. She especially enjoys helping children overcome nerves and uncertainty, turning appointments into positive experiences filled with smiles, high fives, and fun. She values the close-knit atmosphere of a local practice, where both patients and coworkers become like family, and where every day brings new opportunities to learn and grow.
Outside of work, Autumn enjoys what she lovingly calls “nana hobbies,” including crochet, puzzles, cooking, feeding and watching birds, and spending quality time with her husband, daughter, and their dog, Willow.
Dr. Abie R. Chadderdon – Retired
Dr. Chadderdon graduated from the Southern California College of Optometry in 1981. He practiced four years at Eisenhower Medical Center in Ft. Gordon, Georgia, while serving in the U.S. Army from 1981 to 1985; joined Dr. Hinson in partnership. Shortly thereafter, the practice name was changed to Family Eyecare Associates and the Tama office was added. Dr. Chadderdon has additional training in pathology, contact lenses and children’s vision. He is a member of New Hope Christian Church, Noon Lions Club, Rotary Club, Chamber Ambassador, and he coaches youth sports. He has served on the Junior Achievement Board, Mid-Iowa Community Action Health Advisory Board, YMCA Board, and the United Way Executive Committee serving as co-chair in 2006. He is an active member of the Iowa Optometric Association, currently serving as Eyecare Benefits Chairman. He served as the 1995-1996 president and was named young OD of the year in 1986 and OD of the year in 2007. He is active in the American Optometric Association serving as state representative on two committees. He serves as a member of the Iowa Army National Guard now retired at a rank of Lt. Colonel.