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Your Trusted Optometrists in Simi Valley
W Sam Shields, OD & Associates has been dedicated to delivering exceptional eye care for over 25 years. Our practice combines advanced diagnostic technology with personalized attention to address each patient's unique vision needs. Our team of experienced optometrists specializes in comprehensive eye exams, contact lens fittings, and management of ocular diseases. We prioritize patient education and long-term eye health, utilizing cutting-edge tools like retinal imaging for early detection of systemic conditions. Our commitment to community care is reflected in our approachable, friendship-focused service model.

We offer emergency eye care for urgent conditions and co-manage surgical procedures like LASIK and cataract surgery. Our expertise extends to treating dry eye syndrome and fitting specialty contact lenses for complex prescriptions. Located in Simi Valley, we serve as a trusted resource for vision correction and ocular health. Our practice maintains affiliations with top surgical specialists for comprehensive care coordination. We emphasize transparent communication and tailored treatment plans to ensure optimal patient outcomes.
Services
Comprehensive Eye Exam Retinal Imaging Contact Lens Fitting Medical Eye Exams LASIK Co-Management
Highlights and features
  • We offer over 25 years of specialized optometric experience
  • Our practice utilizes advanced diagnostic technology like retinal imaging
  • We provide personalized treatment plans for complex vision needs
  • Our team includes board-certified optometric specialists
  • We offer same-day emergency eye care services
Services
Comprehensive Eye Exam
Our comprehensive eye exams evaluate both vision quality and ocular health through multiple diagnostic tests. We assess visual acuity, eye pressure, color vision, and peripheral vision while examining for early signs of systemic diseases like diabetes. Using advanced imaging technology, our doctors create personalized vision correction plans that may include prescription eyewear or specialized treatments.
Retinal Imaging
Retinal imaging captures detailed digital images of the eye's posterior structures to detect ocular diseases and systemic health issues. This non-invasive procedure helps diagnose conditions like macular degeneration, glaucoma, and diabetic retinopathy. Our optomap technology provides ultra-widefield imaging that reveals 80% of the retina in a single capture, enabling more comprehensive assessments than traditional methods.
Contact Lens Fitting
Our contact lens fittings include specialized evaluations for various lens types including toric, multifocal, and scleral lenses. We conduct trial fittings and follow-up assessments to ensure optimal comfort and vision correction. Our doctors specialize in fitting patients with complex prescriptions and those requiring specialty lenses for conditions like keratoconus or post-surgical vision correction.
Medical Eye Exams
Medical eye exams address urgent and chronic ocular conditions including infections, injuries, and disease management. We treat conditions like pink eye, corneal abrasions, and allergic reactions while managing chronic issues such as dry eye syndrome. Our practice co-manages pre- and post-operative care for procedures like LASIK and cataract surgery with leading regional specialists.
LASIK Co-Management
Our LASIK co-management service includes pre-operative evaluations and post-operative care coordination with top regional surgeons. We assess candidacy for laser vision correction and implantable contact lenses, providing personalized recommendations based on corneal topography and vision goals. Patients benefit from continuity of care with their trusted optometrists throughout the surgical process.
People
W. Sam Shields, O.D.
Optometrist
Dr. Shields has practiced optometry for over 25 years, specializing in comprehensive eye care and ocular disease management. He focuses on building long-term patient relationships while utilizing advanced diagnostic technologies to maintain optimal eye health.
James K. Yi, O.D.
Optometrist
Dr. Yi brings expertise in contact lens fittings and vision correction solutions to our practice. He specializes in fitting specialty lenses for complex prescriptions and managing patients' visual needs through personalized care plans.
Dr. Maier
Optometrist
Dr. Maier contributes specialized knowledge in medical eye care and emergency treatment protocols. His practice emphasizes prompt diagnosis and management of acute ocular conditions while maintaining focus on overall patient wellness.
Questions
What services do you offer?
We provide comprehensive eye exams, retinal imaging, contact lens fittings, medical eye care, and LASIK co-management. Our practice also handles emergency eye care and specialty lens fittings.
Do you handle eye emergencies?
Yes, we offer same-day appointments for urgent eye conditions like infections, injuries, and sudden vision changes. Our doctors are equipped to handle red eye emergencies and corneal abrasions.
Can you help with LASIK surgery?
We provide pre-operative evaluations and post-operative care for LASIK patients. Our doctors coordinate with top regional surgeons to ensure comprehensive vision correction solutions.
What insurance do you accept?
We work with most vision insurance plans and medical insurance providers. Our staff can verify your coverage details and explain any out-of-pocket costs for specialized services.
How do I schedule an appointment?
You can request an appointment through our website, by phone at (805) 527-6164, or via email. We offer same-day emergency slots and Saturday appointments for convenience.