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Mark L. Buehnerkemper, Optometrist

A Message from Dr. Mark


During the Shelter in Place Order, we will be available for urgent and emergent care only. All other routine or non-urgent visits will be rescheduled. We will contact you to arrange for a new date and time.

If we have glasses or contact lenses for you to pick up, please call and we can arrange to bring them out to your car.

If you are running out of contact lenses or need a refill of medication, contact us and we can arrange to get those taken care of. During this time, we are offering free shipping of contact lens orders to your home for two or more boxes at no additional charge.

You can contact us at our office number 707-263-4294. If no one is available to answer our office phone, my direct cell number is 707-349-2810.

You can also contact me directly via email at or

Please be safe. We look forward to providing for your continued eyecare when the situation gets back to normal.

Dr. Mark

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Q&A with Dr. Mark Buehnerkemper | Dry Eye Syndrome
What is the examination like to determine if someone has dry eyes?

A large part of the examination is finding out what the patient is experiencing and determining the type of dry eye causing the symptoms. We examine the surface of the eye under a microscope to look at the quantity and the quality of the tear film. Additionally, we examine the eyelids and the glands inside the eyelids to insure they are healthy. 

What are the typical treatments for dry eyes?

There are a wide range of treatments ranging from over the counter products to specialty laser procedures. Many times using artificial tears and vitamin supplements can help boost the tear film. There are prescription eye drops that can aid in tear production as well as laser procedures for patients with more advanced dry eye. 

Are there any recommendations to help people avoid dry eye?

Of course – stay hydrated and making sure you consume enough water each day. Additionally, take breaks from your computer and smart phone. I recommend the 20/20/20 Rule – take a 20 second break every 20 minutes and look 20 feet away and blink your eyes. Finally, wearing sunglasses is critical to protecting the surface of the eye and the eyelids from UV exposure. 

More about Dry Eyes
Mark L. Buehnerkemper, OD
120 South Main Street
Lakeport, CA 95453
  • 9:00 AM - 5:00 PM
  • 9:00 AM - 5:00 PM
  • 9:00 AM - 5:00 PM
  • 9:00 AM - 5:00 PM
  • 9:00 AM - 4:00 PM
  • Closed
  • Closed

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Eye Emergencies

If you experience loss of vision, double vision, swelling, infection or any eye emergency, contact us immediately for guidance. We’ll help you with the best treatment to prevent complications and promote long-lasting clear eyesight.

Please call our office at: 707-263-4294 for further instructions. Use your best judgment on urgency, if you feel the need to find the nearest emergency room.