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Envision Eye Specialists doctors, trained in the structure and function of the eye (ophthalmologists and optometrists), are experts in treating all types of vision and eye conditions.


Many area patients come to the clinic when their condition is unusual or complex or on an emergency basis.


Come visit us at any of our office locations in Sarasota, Crystal River,  Ocala or Largo Florida for your cataract, glasses, laser, eyelid surgery or cosmetic needs.


Our following doctors are the experts you can count on.


Dennis L. William, M.D.


Undergraduate/PreMed- Central Michigan University Mt. Pleasant
BS in Chemistry 09/65 – 05/69

Medical School- Wayne University Medical College 1975
07/1971 – 02/1975

Harper Hospital
(Affiliated University: Wayne State University School of Medicine)
07/1971 – 02/1975

Kresge Eye Institute
Degree: Ophthalmology
07/1975 – 06/1978

American Board of Ophthalmology Specialty: Ophthalmology


Florida September 20, 1980 ME37452
CNMI March 2014 – 2016

1986 – 1996 President of The Cataract Teaching Foundation
1990 – 1999 Medical Director of Medical Ministries International
1997 Selected “Best Doctors of Tampa Bay” publication
1998 Selected “Best Doctors in America” publication
1999 – 2000 Appointed to the Board of Directors American College of Eye Surgeons
2012 – 2014 Clinical I Instructor of Florida Osteopathic Education Institute

American Board of Ophthalmology – Board Certified 1979
Fellow American College of Eye Surgeons
American College of Sports Medicine
American Society for Cataract and Refractive Surgery
American College of Eye Surgeons


1993 University of South Florida
Faculty, Assistant Clinical Professor

1990 American Society of Cataract and Refractive Surgery, Los Angeles, CA

Secondary Lens Implant Course Instructor
1989 International Eye Surgery Congress, Washington DC
Secondary Lens Implantation Course Instructor
1988 Advanced Anterior Segment Surgery, Seminar, CO
Secondary Lens Implantation Course Instructor

1986 American Society of Cataract and Refractive Surgery, Los Angeles, CA

Secondary Lens Implant Course Instructor
1986 University of California College of Medicine
Clinical Instructor of Ophthalmology
1986 Children’s Hospital of Orange Elks Eye Clinic

Clinical Instructor

1977 – 1978 Wayne County Community College

Emergency Medical Services Course Instructor – Eye Emergencies

1977 – 1978 Wayne State University School of Special Education

Instructor – Eye Emergencies at the Annual Trauma Symposium


An Huynh, OD

Work Experience

FEB 2019 – Current
Crystal River Eye Center, Largo, FL – Optometrist

JUN 2018 – FEB 2019
Relocating to Florida

FEB 2015 - JUN 2018
Texas Eye and Vision Associates, Dickinson, TX - Optometrist

SEP 2014 – DEC 2014
Perfit 20/20 Optical, Woodlands, TX - Optometrist

AUG 2010 – May 2014
Salus University, Elkins Park, PA – Doctor of Optometry

JUN 2008 – MAY 2010
University of South Florida, Tampa, FL – Bachelor of Science: Biomedical Science

AUG 2005 – MAY 2008
University of Central Florida, Orlando, FL - Major: Micromolecular Biology

Language Proficiency
Fluent in Vietnamese

Sandra Sofinsky MD

Gustavo Munguba MD

Dr. Mark Rosanova MD

Dr. Seth Oppenheim MD

Dr. Daniel Richardson OD

Dr. Paul Casey MD

William Ausmus PA

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