Family Optical

Est. 1993


Family Optical

Est. 1993


Our Eye Doctors

Tammy Hersch

Dr. Tammy Hersch, OD

Dr. Tammy Hersch earned her Associate of Science degree from Presentation College in Aberdeen, SD and her Bachelor of Science in Radiologic Technology degree from the University Of Mary in Bismarck, ND.  She then received her Doctor of Optometry degree from Pacific University in Forest Grove, Oregon in 1993.  Upon graduation she opened her optometric practice in Spearfish where she has been enjoying her profession since 1993.

She is a full scope practitioner and likes all aspects of optometry.  She enjoys patients of all ages from birth to geriatrics and takes a special interest in treating ocular diseases such as dry eyes, glaucoma, diabetes and macular degeneration management, co management of cataract and LASIK surgery patients, eye injuries and foreign body removal.

Dr. Hersch lives in Spearfish with her husband Patrick.  They have two children and one grandchild.  They enjoy hiking, biking, skiing and being grandparents. 

Eryn Caudill

Dr. Eryn Caudill, OD

Dr. Eryn Caudill is a Spearfish native who earned her Bachelor of Science Degree from Black Hills State University. She went on to complete a Doctorate of Optometry from the Illinois College of Optometry in Chicago, IL where she earned academic and clinical honors. She is a member of the American Optometric Association and the South Dakota Optometric Association.

Dr. Caudill is passionate about providing quality eye care for patients of all ages. Comprehensive eye exams to diagnose and manage eye diseases, prescribing glasses, contact lens fittings, and urgent eye care are some of the services Dr. Caudill provides. 

In her spare time, Dr. Caudill loves to spend time with her husband and young daughter. She enjoys getting together with family and close friends as well as running, hiking, skiing, and traveling.


Family Optical

Eryn Caudill

Pat Hersch, Office Manager

Along with Dr. Hersch, Pat has been with Family Optical since 1997. With many years of optical experience comes great knowledge, ensuring that the office is running smoothly. Pat wears many hats, from eyewear selection and repairs to all around handy-man. You are sure to be greeted with a smile no matter the task, big or small! In his free time, Pat enjoys skiing, hiking, golfing and spending quality time with his wife, two children and granddaughter.


Bobbie, Optician

Bobbie started her Family Optical journey in 2012. Over the last 11 years, she has mastered many duties in the office that range from eyewear selection to insurance and billing. As a life-long Spearfish resident, Bobbie brings the home town feel as she usually knows you by name as you walk through the door. Bobbie enjoys spending time with her husband and 2 kids. Along with following her kids in various activities, you can find her getting deals during peak garage sale season.


Christi, Optician

Christi has been with Family Optical since 2018. She is very knowledgeable in insurance and billing, as well as meeting with frame representatives to keep our frame boards filled with the most updated styles. In her spare time, Christi enjoys spending time with her family and two grandchildren as well as crafting!


Lexi, Optician

Lexi has been with Family Optical since January 2023. She excels in pre-screening patients and helping with frame selection. Originally from east river, she loves everything the Black Hills have to offer from snowmobiling to side by side riding. Lexi enjoys spending her free time with her husband and their 2 dogs. She also enjoys gardening and finding the best deals at the second hand store.