Certified Iridology Instructors


Sandra O'Connell is a Certified Iridologist, Naturopath and Herbalist from Ireland. Her qualifications include, Diploma of Applied Science – Naturopathy and Practitioner Herbal Medicine 1995, Touch for Health 1993 - from the Australian College of Natural Medicine; Certificate IV in Workplace Training – Northpoint Institute of Tafe 1999;   Certificate IV in Bookkeeping – Bremer Institute of Tafe 2012; Australian Bush Flower Essences Teacher  2016;  Certified Iridologist 2018 (IIPA), Certified IIPA Instructor 2019 – International Iridology Practitioner Association (IIPA).

Sandra, treats her clients with a combination of Iridology, Naturopathy, Herbal Medicine, and Flower Essences in her clinic for over 5 years in Ireland and over 8 years in Australia. She has worked in Countries such as Fiji, Vanuatu, Hong Kong and Dubai, conducting Iridology and Naturopathic Consultations.  Sandra is very passionate about Iridology and loves to speak about it at any opportunity she gets on stage or at Colleges she speaks at, as a guest speaker and lecturer. She is a guest lecturer at Kinesiology College of Ireland and the College of Natural Medicine.  She is an enthusiastic and dynamic hands on teacher and is committed to sharing her passion for this emerging Naturopathic & Iridology field. Sandra lives in a small village outside of limerick, with her amazing husband. They love to renovate old cottages and this is where you may find them both if you don't find Sandra in the classroom teaching or in clinic treating patients and mixing herbal remedies or on the road travelling around the country of Ireland and discovering its beauty. Iridology is amazing and has helped many people that have come into Sandra’s clinic to discover many things about themselves and about their health.

 Ballincaroona, Knocklong
Co. Limerick V35 TK26

Phone: +353871047727
Email: irisnt@mail.com


As the proprietor of Peek Iridology, I’d like to introduce myself. I was born and raised in Idaho Falls, Idaho. I attended Idaho State University as well as Eastern Idaho Technical College where I received my Associates of Applied Science Degree. After graduating at the top of my class, I became a Certified Medical Assistant. I have spent the last 15 working in physician offices caring for patients. In 2005, I moved to Jackson Wyoming and started working for a Holistic Internal Medicine Physician. I currently still work in the field. Iridology was introduced into my life at a young age. My little sister was diagnosed with Epilepsy when she was 4 years old. The doctors told my parents there was nothing that could be done but to put her on medication for the rest of her life. Knowing that was not an option for my sister, my parents found an Iridologist named Randy Anderson. After analyzing my sister’s irises she was able to strengthen and heal some imbalances of her body through supplements and diet. To this day my sister has never had another seizure. I knew someday I would like to be able to help others in a way Randy did my sister. A natural approach to achieve optimal wellness has always been a passion of mine. It is my ambition, as your Iridologist, to create an exceptional experience centered on your needs and wellness. With my compassionate nature, understanding, respect and confidence it is my genuine concern to help create personalized wellness within. Please allow me the opportunity to analyze your body’s weakness and strengths through your irises. The eye is the window to the soul.

P.O. Box 2224
Jackson , Wyoming 83001
United States
Phone Number: 307-699-1740
Email Address: jennifer@peekiridology.com

Virginia-PETER GUHL, O.D.

Dr. Guhl is the Director of Research for the International Iridology Practitioners Association. He has served on its Board of Directors for about ten years. Iridology has been a pursuit of his for almost thirty years. Initially certified by Dr. Bernard Jensen, he continued his studies, including Denny Johnson’s Rayid method and Dr. Daniele Lo Rito’s work He studied with IIPA’s founders Drs. Harri Wolf and Bill Caradonna. He is a Certified Comprehensive Iridology Practitioner and also a Diplomat Instructor for levels I and II. He has lectured and written about iridology as well as iris scanning systems for identification based on iris biometrics. He has an extensive background in alternative healthcare modalities and is pursuing doctoral degrees in nutrition and naturopathy. He is a member of the research team studying iridology from Howard University School of Medicine in Washington D.C. and The University of North Carolina Department of Health Sciences at Winston-Salem North Carolina. He has an active practice with an emphasis on Behavioral Neuro-Optometry. This specialty treats visual problems caused by brain disorders, including traumatic brain injury, stroke and developmental or learning difficulties. Dr. Guhl was a pioneer in incorporating Optometric Syntonic Color therapy into this field. He is versed in energy medicine and nutrition. He is certified in Lasik care by the Laser Optic Center and is a Certified Wave Designer of custom contact lens. He is a fellow of the American Academy of Optometry and the American College of Optometric Physicians. He is a charter member and is certified by the Neuro-Optometric Rehabilitation Association. He is an alumnus of the Ohio State University and did his professional studies at the New England College of Optometry in Boston. He interned at Walter Reed Army Medical Center in Washington D.C. Dr. Guhl served as president of the Connecticut Association of Optometrists while he practiced there. He is a recipient of the 2007 American Optometric Association’s Optometric Recognition Award. 

4102 George Washington Memorial Hwy
Yorktown, Virginia 23692
United States
Phone Number: 757-890-2020
Email Address: peterg2020@aol.com


Steven Horne is professional member and past President of the American Herbalists Guild (AHG) and a member of the International Iridology Practitioner’s Association (IIPA). He has also served on the Board of Directors of both organizations. An herbalist, natural health teacher, author, and consultant, his work has taken him all over the United States and Canada and to several foreign countries to share this wealth of knowledge. He is a popular speaker and students find what he teaches is practical and easy to understand and apply. Steven is the author of numerous books and course on natural healing, including: Coming Clean: Your Guide to Detoxification, Constitutional Iridology, The Endocrine Symphony, The Comprehensive Guide to Nature’s Sunshine Products and his latest release, The Heart’s Key to Health, Happiness and Success. Steven has also produced over 50 videos and DVDs on natural healing. Steven has been a consultant and product formulator for several herb companies, including Nature’s Sunshine Products, Tri-Light, Limited Edition and Cedar Bear Naturals. Steven is the founder Tree of Light Publishing. Recently he started the School of Modern Herbal Medicine, which is dedicated to “excellence in herbal education.”

P.O. Box 911239
St. George, Utah 84791
United States
Phone Number: 435-627-1682
Email Address: abcherb@mac.com


Bill Yeary is the founder and Chief Executive Officer of Life Training Institute, International Institute of Faith Based Counseling, Compassion Christian Counseling, Getting Well Naturally, and LifeHouse Church. He founded and instructs in the Biblical Naturopathic Doctorate program through Life Training Institute. He has been a practitioner since 2003. He lives near Beaumont, TX with his wonderful wife Jennifer.

6421 Barrows Drive
Kountze , Texas 77625
United States
Phone Number: 409-227-4192
Email Address: gwn@gettingwellnaturally.com


Rebecca has a Dr. of Naturopathy degree and a Ph.D. in Nutritional Counseling from LaSalle University in Mandeville, La. She was certified for Iridology by NIRA (which is now IIPA) in 1997, and is a Lifetime Member. She is currently serving as an IIPA Board member. She is certified for Sclerology by the International Sclerology Institute ad Grand Medicine. She lives in West Texas and has practiced natural healing, using Iridology and Sclerology as her touchstones, since 1993.

620 North Grant, Suite 902
Odessa, Texas 79761
United States
Phone Number: 432-333-9702
Email Address: eyeballs@att.net


Kianna Smith is a certified iridologist, instructor, consultant and author of “Iridology, A Handbook”, a textbook used nationally and internationally by iridologists and a natural health college. She teaches Comprehensive Iridology (SM) classes and mentors those who wish to become certified iridologists. Kianna is the former Director of the International Iridology Practitioners Association (IIPA) Certification and Standards Department. Kianna combines the science of iridology along with her gentle intuition and other methods of iris readings to bring forth each client’s unique health tendencies, gifts, skills, talents and purpose in the world. Kianna has a BA in adult education and is certified in life purpose hand analysis to bring more wholeness to all aspects of one’s life. Having worked in the computer industry for 22 years in the US and overseas in a prior career, Kianna brings a practical, useful approach to iridology, nutrition and lifestyle and through hand analysis helps people to understand their life purpose. Kianna specializes in nutrition for the diabetic.

13035 Scofield Farms Drive
Austin, Texas 78727
United States
Email Address: kianna.smith@prodigy.net


Kathy Norris is a certified Iridologist, foot Reflexologist and owner of Family Farm Health Food Store.  She has been practicing Iridology for the past 20 years and studied under Dr. Benard Jensen and Micki Jones.  Family Farm Health Food Store has been in successful operation for 40 years and Kathy has grown the store to new levels in the past 18 years of ownership. While visiting a friend in 1995, Kathy noticed the "big blue Iridology" book written by Dr. Bernard Jensen.  Curiosity overcame her and she bought the book from her friend.  Three weeks later she was taking her first class on Iridology.  She went on to actively study this mode of natural health and has a thriving practice today.  Kathy believes in taking a common sense approach that shows a person where they have come from and where they are going.  She uses Iridology to create a roadmap to help her clients find solutions to lifelong problems and concerns.  Kathy feels she personally grows with each experience with her clients and values the rewarding opportunity to teach and learn through every session. Kathy has a D.Ir. from the Holistic Health College and holds various certifications in nutrition and Herbology.  She is certified in Reflexology through the International Institute of Reflexology. Kathy resides in Houston, Texas and enjoys golf, fishing and racquetball in her spare time.

Houston, Texas 77375
United States
Phone Number: 713-582-2963
Email Address: knorris@iridologyfusion.com


Micki Jones has been involved in the study of nutrition and Herbology for the last 30 years. This intensified and expanded to include the study of Iridology during the past 28 years, working with many individuals throughout the United States and Worldwide. She teaches Master Herbology & Natural Therapies and is a Diplomate Instructor for the International Iridology Practitioner’s Association and teaches both IIPA Level I and Level II. Micki has been a past member of the Board of Directors for IIPA. Micki co-authored the book “A Practical Guide to Herbal Extracts” which was released in March of 1995 and sold over 1500 copies throughout the United States and Canada in the first two weeks. This book is now in its seventh revision and printing. She developed the “Universal Iridology Chart” which combines the American and European Iridology theories and markings. Her education includes Dr. Christopher’s School of Natural Healing and a Bachelor of Science Degree from Westbrook University in Clinical Nutrition and Doctor of Iridology and Naturopathy degree from the Holistic Medicine College of Wisconsin. Her studies include resident training with Dr. E. C. Watkins, the Center for Building Better Health Naturally, Dr. Bernard Jensen, Harri Wolf, and Dr. Daniele Lo Rito from Italy.

25511 Budde Road, Suite 1502
Woodlands, Texas 77380
United States
Phone Number: 936-224-4161
Email Address: mdjones@iridology.com


Birgit Lueders is a certified Master Herbalist, a Certified Iridology Instructor and Intuitive Wellness Coach. Birgit first learned the values of an organic herbal lifestyle in her home country of Austria. Since 2009 she has operated BirgitCare, a business focusing on health, wellness, and natural healing. Through BirgitCare, she offers services including wellness coaching based on private personalized evaluation, and Iridology, which is the analysis of spiritual, emotional, and physical health through examination of the eye. BirgitCare also features a line of related products designed to promote a healthful lifestyle, ranging from superfoods to organic skin care to tasty herbal tinctures. Birgit’s holistic approach towards optimum health is rooted in the belief that our bodies have their own healing powers – sometimes, though, we need a little help in deciphering what our bodies are telling us. www.centerforiridology.com

220 Pheasant Run Drive
Paoli, Pennsylvania 19301
United States
Phone Number: 484-222-1441
Email Address: birgitlueders@gmail.com
Website: www.centerforiridology.com


Cheryl Matschek is a practicing Doctor of Natural Health, Master Herbalist, and Iridologist in the Portland, Oregon area. She is an IIPA Certified Iridologist and IIPA Certified Iridology Instructor. She is Life Member of IIPA, and served on the IIPA Board for ten years – three of the ten as President. Cheryl Matschek holds a PhD in Natural Health, Nutrition and Iridology; a Master’s in Behavioral Science; a Master’s in Herbology; and a Bachelor’s in Psychology. She is an internationally known speaker, trainer, consultant and author since 1979 and is a member of the National speakers Association, the International speakers Association and a variety of other organizations related to the speaking and health industries. Cheryl is the owner and founder of The Cheryl Matschek Company, Inc, Soaring Horizons® and Princess Publishing and continues to serve on various Boards of Directors. Cheryl and her husband, Dr. Norman Matschek (a dentist), reside in the outskirts of Portland, Oregon. As committed Christians, they are very active in their church and in the community. They share their home with two adorable, spoiled miniature schnauzers, Holly and Sunshine. Together, they enjoy traveling, golf, walking/hiking, and reading. Cheryl enjoys writing, cooking, stained glass and playing her accordion. Her passion for what she does runs deep. She loves people, loves life and it shows! She has a great desire to help people become healthier, and more peaceful and joyful in their journey through life.

P.O. Box 1781
North Plains , Oregon 97133
United States
Phone Number: 503-647-5754
Email Address: cheryl@matschek.com


Alicia has been in private practice for over 38 years, now utilizing her time and experience in teaching and certifying practitioners, mentoring, and educating the community on the alternative and complementary health modalities. She is certified in IIPA Iridology, Emotional Iridology, Sclerology, Hypnosis and Regression Therapy, Shamanism, Herbology, Flower, Gem and Tree Essence Therapy, Energy Balancing, and Spiritual Counseling. Alicia is the owner of Natural Approach to Health, Minerva, Ohio, a business designed to distribute herbal products and essences–both via wholesale and retail sales, through its website and natural health store. She maintains a private natural health practice, and is a certified instructor. Her certified courses include:“ Running a Successful Natural Health Business”, IIPA certified Physical Iridology Levels I and II, Emotional Iridology, Herbal Detox, Herbal Protocols, Canadian Forest Tree Essences, Body Synergies Essences, and Gem Essence Therapy. Alicia is the U.S. distributor of Living Light Gem Essences and Canadian Forest Tree Essences as well as the Educational Director for Canadian Forest. She serves as the Educator/Trainer for Blessed Herbs regarding their cleansing kits. She has served as Assistant Educational Director in charge of Instructors for the International Iridology Practitioners Association (IIPA), and is a past member of the Mind Body Spirit Connected (MBSC), in Cleveland, Ohio, an organization which works with the Integrative Medical Services of the Cleveland Clinic. Alicia has written the curriculum for the Emotional Iridology and Essence Therapy courses. She is the author of “Create A Healing” taped series, “A Journey To Healing – A Guided Meditation” and “Deep Dark Secrets Behind Every Dis-ease” CDs, and “You’re Dead and You Don’t Even Know It” – A Book on Soul Evolution. She has recently developed her own line of essences called Heart and Soul Essences. The first kit is a Soul Detox kit with 4 essences and instruction booklet. Alicia is a long-standing member of IIPA, National Association of Transpersonal Hypnotherapy, National Guild of Hypnotists, Foundation for Shamanic Studies, Association of Area Research and Enlightenment, The Foundation for Personal Growth and Understanding, and the International Sclerology Institute.

3944 Whitacre Avenue S.E. 
Minerva , Ohio 44657
United States
Phone Number: 330-868-5353
Email Address: naturalapproachtohealth@frontier.com
Website: www.naturalapproachtohealth.com

North Carolina-WANDA J. SEITZ, ND, CCII

Dr. Wanda Seitz has had a lifelong interest in natural health; however, it wasn’t until her son was diagnosed with an incurable, but “treatable” disease that she began to look into natural medicine as a serious alternative to her son consuming tissue toxic drugs for the remainder of his life. These drugs were not only ineffective but actually made his condition worse. Wanda’s initial research revealed that the doctors were treating the symptoms not the cause of the disease, which turned out to be parasites in the joints. After successfully overcoming her child’s entire health crisis through the use of herbs and diet, she knew her destiny in life was to help others find natural solutions as she had. Wanda received her Certified Herbalist certificate from Dr. Jim Jenks, a graduate of Certified Natural Health Professionals, her Certified Nutritional Consultant and Doctor of Naturopathy degree from Trinity College of Natural Health. Wanda has completed additional research and studies in the fields of biochemistry, biology and biophysics. Wanda is a professional member of the American Naturopathic Medical Association, Association of Certified Nutritional Consultants, International Iridology Practitioners Association and Certified Natural Health Professional Association. Wanda shares her vast knowledge through lectures and classes throughout the country in person and as online “Webinars”. As the owner of a natural health clinic and a nutritional consulting practice in Colonial Heights, Virginia. Wanda has shared her knowledge with literally thousands of clients over the past 18 years.

1090 Longleaf Street, S.W.
Supply, North Carolina  28462
United States
Phone Number: 804-839-0723
Email Address: wanda@backtonatureherbs.net
Website: www.backtonatureherbs.net


Betty Sue is a student of Dr. Farida Sharan of the Boulder School of Natural Medicine. She has been certified through the School of Natural Medicine as a Master Iridologist, schooled in the tradition of Josef Deck, Dorothy Hall, Theodor Kriege, Josef Angerer and other great Iridologists by Dr. Sharan. She has studied with Dr. Bernard Jensen and has attended workshops with Denny Johnson (Rayid) and Danielle Lorito (Time Risk). She has an undergraduate minor in nutrition and science and a B.S. and M.S. degree in English. She lectures around the country on the subject of natural health and healing, teaching people how to take charge of their own health and deepening their understanding of their personal healing journey. In her classes she will present IIPA Iridology using current terminology and studying the irises of each of the participants in the class.

6404 Shore Drive
Ocean Springs , Mississippi 39564
United States
Phone Number: 228-257-1946
Email Address: betty.obrian@gmail.com
Website: www.southerninstituteofnaturalhealth.com


Beth Hovis has been in the natural health field for over twenty years.  Introduced to natural health by her midwife during pregnancy with her third child, she began her journey in discovering how to help her family and others through natural choices and raised her three children using natural health options.  She began work in her local herb shop in 1997, where she learned more about herbs, as well as, the science of Iridology.  Eager to learn more, Beth began taking classes and has obtained her ND, MH, CNHP, and CCII.  Beth owns The Herb Shop in Fayetteville, Georgia where she has offered Iridology and health consultations for the past twelve years.  She is now the Program Director for the Iridology Master Practitioner Program at Trinity School of Natural Health.  Beth and her husband Rob, live in McDonough, Georgia, and are blessed with three children – two daughters and one son, two grandchildren – a boy and a girl, and a baby boy on the way, all of whom are the joy of her heart.

McDonough, Georgia
United States
Phone Number: 470-205-4473
Email Address: herbshop45@gmail.com


Nancy is certified through IIPA, as an iridology instructor, and iridologist who also studied under Ellen Tart Jensen with Bernard Jensen International. She is certified in Nutrition, Herbology, and Muscle Testing through the California Board of Registered Nursing, also Health and Nutrition with The New Eden School of Natural Health. She is President and founder of Iridology Life since 2009 and her purpose is to teach and enlighten someone with the knowledge of Iridology and nutrition that can help people with the benefits of health awareness through preventive health. Nancy studied and worked in different areas with health and wellness for many years. Her interest in preventive health was brought on with her life experience as a teenager, from major complications during a minor operation which caused severe hemorrhaging, and required daily blood transfusions for weeks. One year later she was completely paralyzed from a virus in the nervous system, which also damaged her lungs and heart. There were concerns of being in a wheelchair for life or not making it at all. Four doctors misdiagnosed her, till she was carried into her fifth doctor by her new boyfriend which is her husband till today. This doctor combined his medical knowledge along with alternative methods, never thought of 45 years ago. He combined mega doses of B1 (thiamine) and B Complex through intravenous treatments. She later learned that he lost a family member to this crippling syndrome that 1 out of 100,000 people get and couldn’t except what he missed as a doctor and studied alternative methods which he used on Nancy, proving she had a Vit B1 deficiency He saved Nancy from a life of severe disabilities. His advice to her was to protect her nervous system, lungs and heart through which were severely damaged by this syndrome. She says she thanks God every day. She found Iridology 9 years after her dad’s passing. Ironically, Iridology honors her dad and her uncle. They both were breeders of champion race pigeons and horses. They looked into their eyes with their eye magnifiers and light and gave them the nutrients that were needed to make them champions. I don’t think they knew they were already doing animal Iridology. Nancy is honored to follow in their footsteps with the human eye. Who knew all this was going to lead Nancy into her life’s purpose. Nancy Rondone Email: info@iridologylife.com Website: www.iridologylife.com

United States
Phone Number: 954-415-6359
Email Address: info@iridologylife.com
Website: www.iridologylife.com