Mark R. Mandel, MD

Mark R. Mandel, MD has been selected by hundreds of eye doctors and other physicians to perform LASIK, corneal transplant, and cataract surgery on themselves, their families, and their office staff.

Mark R. Mandel, MD

As a sub-specialist Dr. Mandel has performed over 70,000 LASIK procedures and 20,000 cataract/IOL procedures. He has been serving Bay Area patients since 1983.

Mark R. Mandel, MD

We are proud to offer state of the art technology for measuring the eye and performing the latest in advanced surgical techniques… always striving to achieve the best possible outcomes.

Mark R. Mandel, MD

Graduate of Oxford University, UCLA School of Medicine, Fellowship trained cornea transplant and refractive specialist. Chosen by more surgeons to perform surgery on themselves and their families.


Could the Way You Sleep Contribute to Dry Eye?

Dry eye caused by sleep position

Could the way you sleep improve or worsen dry eye syndrome? A team of ophthalmologists from Long Island, N.Y., believes it might. A study discovered that patients who sleep on their sides tend to experience more severe dry eye symptoms, including burning, itching or stinging eyes, eye fatigue and sensitivity to light.

Read on as Mark Mandel, MD, a corneal specialist serving the Bay Area with offices in San Jose, Hayward, Castro Valley and Concord, explains what you should know about the study.

Side Sleepers Experience Worse Symptoms

Dr. David Alevi and his team at Ophthalmic Consultants of Long Island (OCLI) conducted a study of 125 patients with dry eye syndrome who said they slept on their sides. Many of the participants had issues with the function of the meibomian gland, which is responsible for secreting oils that prevent tears from evaporating too quickly.

The participants were asked to complete a questionnaire called the Ocular Surface Disease Index to assess the severity of their dry eye symptoms. Tests were performed in conjunction with the questionnaire to grade dry eye severity from patient to patient.

Dr. Alevi asked patients to switch from a side sleeping position to sleeping on their back. After changing sleep position, many patients experienced an improvement in their dry eye symptoms.

Although the research team couldn’t confirm the exact causal relationship between sleep position and symptoms of dry eye syndrome, they suggested that side sleepers may experience improper tear drainage. Another plausible theory is that patients that sleep with an eye pressed against a pillow may compress or clog their meibomian glands, preventing the glands from functioning properly and throwing off the composition of the tears.

What Does This Mean for People with Dry Eye Symptoms?

The OCLI study was a small study. Certainly more research is needed to make any conclusions about the relationship between sleep position and dry eye symptoms. However, if you are suffering the uncomfortable or debilitating symptoms of dry eye, it may be helpful to try sleeping on your back and look for any improvements.

Dr. Mandel can also work with you to find other ways to relieve your symptoms, such as the use of artificial tears, dietary supplementation or the placement of punctal plugs. After identifying the specific cause of your problems, Dr. Mandel can suggest the most appropriate course of treatment.

Contact Optima Eye

To book an appointment to discuss dry eye syndrome, please call 877-210-2020 ext. 3 or send us an email.

Sarah Lee shares her successful LASIK experience. Click below to enjoy her video.

Physicians and patients have traveled from all over the world to Mark R. Mandel, MD

If you would like to meet with Dr. Mandel to discuss your personal vision needs, please contact our office today to schedule a consultation.

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Laser Refractive Surgeries

Laser refractive surgery corrects focusing errors of the eye (e.g., nearsightedness, farsightedness, astigmatism) in order to improve visual sharpness and clarity. Procedures include LASIK, laser cataract surgery and refractive lens exchange.


Premium Cataract Surgery

At Optima Eye we offer premium cataract surgery. Patients can opt for laser cataract surgery and / or premium intraocular lens implants, with several options to fit your unique lifestyle.


Complete Eye Care

Dr. Mandel and his team of professionals offer a complete continuum of general eye care services to accommodate every patient’s needs — whether those needs are as simple as a routine eye exam, or as complex as laser vision correction.


Dry Eye Treatment

Dry eye syndrome, which affects more than 100 million people worldwide, can be painful and debilitating. Dr. Mandel uses several approaches to treat dry eye, ranging from medication to punctal plugs.


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Hayward Location

1237 B Street
Hayward, CA 94541

San Jose Location

455 O’Connor Drive, Suite 360
San Jose, CA 95128

Castro Valley Location

20400 Lake Chabot Road, Suite 302
Castro Valley, CA 94546

Concord Location

1401 Willow Pass Rd., Suite 100
Concord, CA 94520
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