Grand Medicine · Established 1972
What if Your Eyes
Could Tell You Everything
About Your Health?
They already can. For over 50 years, Grand Medicine has been unlocking the extraordinary language your eyes speak — mapping health, personality, and healing potential that most people never knew existed.
"As you begin to discover what lives in your eyes, you may find yourself seeing your own health — and your life — in a completely new way."
Imagine for a Moment
What Would Change If You Already Had the Answers?
"Imagine looking into someone's eyes and knowing — not guessing — exactly where their body is struggling, what their personality is built from, and what has the power to transform their health… permanently."
"That's not a fantasy. That's Eyology. And it's been quietly changing lives since 1972."
- Identify developing health problems up to 3 years before symptoms appear
- Understand personality traits, emotional patterns & relationship dynamics
- See real-time body stress & congestion — and what to do about it
- Empower your clients with a truly whole-person health picture
- Join a 50-year living research community that keeps evolving
About Grand Medicine
50 Years of Passion, Research & Transformation
Grand Medicine is a private company in Fallbrook, California, directed by retired Traditional Naturopath Leonard Mehlmauer and Nenita Sarmiento. Clinical practice began in February 1972 — and every day since, they have been teaching, studying, and researching the Eyology sciences, health, and higher ways of living.
Hailed by the late Dr. Bernard Jensen as "one of the pioneers of Iridology," Grand Medicine is considered the world's leading authority in Sclerology. They have authored textbooks in all three Eyology sciences and built a global practitioner network that spans decades.
Their experience, product quality, research, brand, and intensity are their integrity. Life is a school — and class is always in session.
"One of the pioneers of Iridology."
— Dr. Bernard Jensen, DC · Escondido, CaliforniaThree Sciences. One Complete Picture of You.
Science 01
Physical Iridology — Your Body's Blueprint
The iris of your eye is the most detailed map of your physical body that nature ever designed. Physical Iridology is the art and science of reading that map — revealing what few practitioners even know to look for.
"Most people are walking around with developing conditions their bodies are already signaling — and no one taught them to read the signs. Physical Iridology changes that, forever."
- 🧬 Genetic tissue predispositions passed down through generations
- 🫀 Organ and system assessments — every major body system mapped
- ⚗️ Nutritional deficiency and toxin accumulation indicators
- 🪱 Parasite, drug and chemical influence patterns
- ⏰ Developing problems visible up to 3 years before symptoms
- 📈 Tissue changes trackable within just 3 days of treatment
Science 02
Personality Iridology — Your Mind's Architecture
What drives you? Why do you react the way you do in relationships? The answers have been in your eyes this whole time — and Personality Iridology is the key to reading them.
"Personality Iridology gives you a window into the 'why' behind human behavior — your own and those you love. Once you see it, you can't unsee it."
Science 03
Sclerology — Your Body's Live Dashboard
While the iris tells a story of genetics, the whites of your eyes — the sclera — broadcast a real-time signal of everything happening in your body right now. Grand Medicine is the world's leading authority on this extraordinary science.
"In terms of overall data at the gross physical level, the scleras typically display twice that of Physical Iridology. Most practitioners haven't even scratched the surface."
- 🩺 Real-time pathology & current health status indicators
- ❤️ Cardiovascular & nervous system live signals
- 🔥 Inflammation, toxicity & congestion markers
- ⚡ Etheric-emotional energy patterns
- 🎯 Body areas most at risk of disease — right now
Sydney Sclera Master Class — Grand Medicine teaches globally
What Eyology Reveals
The Most Thorough Eye-Health Assessment on Earth
Non-toxic. Non-invasive. Inexpensive. And extraordinarily powerful. Here is what Eyology's integrated sciences can reveal about any person:
Note: Eyology data is evaluative, not diagnostic. Its signs are generic and holistic — targeting root causes and patterns rather than named medical pathologies.
The Great Liquid Diet
The Protocol That Has Been Quietly Transforming Lives Since 1975
This is not a fad diet. This is a 50-year clinically-proven purification protocol — prescribed clinically since 1975 — with results that speak for themselves every single time.
What if 30 Days Could Change Everything?
The Great Liquid Diet is perfect for anti-aging, gentle weight loss, rejuvenation, and almost every disease circumstance you can name. No harsh fasting. No suffering. Just pure, delicious transformation — backed by half a century of clinical results.
Your author typically loses 15 lbs in 30 days — but far more important is the purification, and the enormous health benefits: eliminating pain, toxins, inflammation, and chronic disorders. Gaining longevity, youthful appearance, and radiant health.
Leonard wrote one-page daily notes for all 30 days to guide participants through the GLD. Now he offers these as a free gift. Sign in at gldiet.co and they'll arrive daily for 30 days — the perfect companion to your transformation.
Sign Up Free at gldiet.co →From 80+ years of life experience, Leonard distills practical wisdom into weekly Lifestyle Gifts — covering dental health, longevity, water safety, skin care, and much more. A weekly upgrade to your life, for less than a coffee per month.
Subscribe at gldiet.co →Choose Your Path
You Belong in This Community.
Which Path Calls to You?
Whether you're seeking personal transformation or want to become a world-class certified Eyology practitioner — there is a seat waiting for you. Both paths lead to extraordinary places.
"As you read about each path below, notice which one creates a sense of excitement in you — that feeling of recognition that says 'Yes, that's exactly where I'm meant to go.' Trust that."
You've been searching for answers that conventional approaches haven't given you. The Great Liquid Diet and the Eyology community are designed for exactly where you are right now. Your journey doesn't just heal you — it contributes to a living 50-year research legacy.
- ✓ Free introduction to the Eyology sciences
- ✓ 30-Day Great Liquid Diet program + daily support
- ✓ Private community — share, support & be supported
- ✓ Monthly live sessions with Leonard & Nenita
- ✓ Personal eye analysis consultation option
- ✓ Daily GLD Notes to your inbox (free gift)
You already know that the tools you have only tell part of the story. Eyology certification gives you a complete picture — one that will set you apart from every other practitioner your clients have ever worked with.
- ✓ Full Sclerology certification — Basic & Advanced
- ✓ Physical Iridology (Iris-1) full certification
- ✓ Personality Iridology (Iris-2) full certification
- ✓ Streaming access to all course video libraries
- ✓ Practitioner community & clinical case study library
- ✓ HIPAA-level data encryption (coming soon)
Certification Courses
The World's Finest Eyology Education
Grand Medicine has authored textbooks in all three sciences. These are the gold standard of Eyology education, taught by the world's leading authorities.
The Marketplace
World-Class Charts, Maps & Reference Materials
Grand Medicine ships worldwide. The definitive reference materials for Eyology practitioners and students.
Testimonials
The Words of Those Who Already Know
As a healer involved in the field of cancer and chronic degenerative disease, I highly recommend Grand Medicine teachings for both practitioners and those who want to improve their health.
When I received and utilized the information from Grand Medicine's Sclerology course I learnt so much more about analysing health from the eyes. I really feel that I now offer my patients a much better standard of care.
Dr. Leonard Mehlmauer is a towering figure of world-class expertise in Sclerology, Iridology, and healing — a presenter par excellence. He demonstrates humility and magnanimity, a servant to humanity and a lover of the Divine.
Received your kind letter and my wish is that your work continue. If there's anyone who wants to know more about Sclerology, I will certainly recommend your book. I wish you everything good.
The Next Step is Yours
You've Felt It Reading This.
Something is Waking Up.
"The people who find Grand Medicine don't arrive here by accident. They arrive because something in them is ready — ready to see themselves clearly, to heal deeply, and to understand what their body has been trying to say all along."