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Doctors & Staff

Meet the experienced and friendly doctors and staff who make Eyecare Associates Marshalltown the leading provider of vision care products and services in Marshalltown.


Dr. Abie R. Chadderdon

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.


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 St. Henry’s Parish, Noon Optimist, Marshalltown Young Professionals, Iowa Optometric Association. She has three beautiful little girls at home.


Dr. Collin Edwards

Dr. Collin Edwards is from Spencer, Iowa. He graduated from the University of Iowa in 2015 with a Bachelor of Science Degree in Human Physiology. He attended the University of Missouri-St. Louis College of Optometry completing externships at OMNI Eye Services in Atlanta, Saint Louis University Ophthalmology, and Vance Thompson Vision in Sioux Falls. These externships provided him the opportunity to work closely with cornea, cataract, oculoplastic, glaucoma, and retina specialists performing evaluations and post-operative examinations while also observing surgical procedures. He graduated from the University of Missouri-St. Louis College of Optometry in 2019 with a Doctorate of Optometry.

He is interested in expanding his skill set to include neuro-optometric rehabilitation for patients suffering from vision difficulties due to traumatic brain injury or stroke. He has spent time learning from Dr. Fitzgerald, Vice President of the Neuro-Optometric Rehabilitation Association, at Fitzgerald and Associates/Vision in Motion in Cedar Rapids, Iowa. Dr. Edwards is a member of the American Optometric Association and the Iowa Optometric Association.

He is a devoted fan of Iowa Hawkeye basketball and football. He enjoys playing tennis, basketball, and weightlifting in his free time as well as spending time with his dog Chief.


Rachel Brodin

Rachel is from Davenport, IA. She graduated from the University of Northern Iowa with a degree in Organizational Leadership Management B.A., with a minor in Leisure Youth and Human Services.

Rachel moved to Marshalltown three years ago and started working at Eyecare Associates shortly after. She most enjoys her job because of the great patients. She also enjoys seeing the staff grow and learn new skills.

She and her husband have three adorable fur babies; a cat and two dogs. She loves to travel whenever she gets the chance and is always excited for the next adventure!


Lori Ruddick

Lori was born and raised in Hampton, Iowa. She moved to Marshalltown in 1978 and attended Marshalltown Community College for two years. Lori has now been in the Marshalltown community for 42 years and has on staff at Eyecare Associates for nearly 25.

Lori most enjoys helping people and the relationships she has built with patients.

She has been married to her wonderful husband, Kim, for 35 years. Lori has two grandchildren, Kellen and Clayton. They are the sons of her son Jeremy and his wife Joanna. She also has a son Austin who is married to Stephanie.

Lori enjoys reading, spending time with friends and family and walking her dogs. In the past, she has raised four puppies for the Guide Dog Foundation in New York.


Marcella Castillo

Optical Manager

Marcella Castillo has been on the Eyecare Associates Team for one and a half years. In that short time, she has made a significant and outstanding impact. Marcella has recently accepted the position of Optical Manager.

She was born in Des Moines but has lived in the Marshalltown area all her life. She is grateful to have been raised here. Marcella graduated from MHS in 2014.

Marcella has an older brother who recently graduated from DMACC. He lives in Ames with his girlfriend. She also has a younger sister along with two half-sisters who live with her father in Mexico.

She enjoys spending time with her friends and family. She also loves to travel with her boyfriend of 7 years.

Marcella has been an invaluable asset to Eyecare Associates. In her own words,

“I really enjoy the people I work with. I l get to help the patient choose frames and educate them about our various lens options. Seeing how excited patients are when they put their new glasses on and are able to see so much better is extremely gratifying.”


Renee Anagnos

Renee is a Marshalltown transplant by way of New Hampshire. She continues to be a passionate New England Patriots fan and doesn’t hesitate to remind us of the score most Monday mornings.

She has a 28-year-old son, Jordan. She also daughter Amber, who is 14. Renee is married to Richard Anagnos, who in her own words is, “who knows how old.”

Renee and her family have Zeus the dog, Lizzy the cat, Daisy the rabbit, and a dozen chickens. “No partridge in a pear tree. Not yet at least,” she jokes.

She enjoys watching her daughter play volleyball and shoot trap. During the Iowa State Fair season, she enjoys assisting in the 4H Poultry Youth Development Program.

Renee most enjoys assisting patients while in the office and building relationships that continue and grow each visit.

We are lucky to have Renee on the Eyecare Associates Team.