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.


Can Eating Foods Rich in Vitamin C Prevent Cataract Progression?

Can vitamin C foods slow down cataracts?

More than 22 million Americans age 40 and older have cataracts, which is the clouding of eye’s natural lens. Common symptoms of cataracts include hazy, blurry vision, glare and halos around lights. Although there is no medical cure for cataracts, there are several ways to reduce your risk of developing the condition or if you have it, slow down its progression. According to one study, eating foods rich in vitamin C can cut the risk of cataract progression by a third. Here, cataract surgeon Mark Mandel, MD, discusses the study’s findings in detail.

What the Study Found

Researchers at King’s College in London looked at data from more than 1,000 pairs of female twins in the United Kingdom. Participants filled out questionnaires on their intake of vitamin C and other nutrients such as vitamin A, vitamin E, manganese and zinc. The severity and progression of each participant’s cataracts was documented at the beginning of the study. A follow-up measurement was also performed on 324 pairs of twins 10 years later.

During the first measurement, individuals who ate diets rich in vitamin C had a 20 percent lower risk of cataract progression than those who didn’t consume a vitamin C rich diet. After 10 years, researchers found that participants who reported eating more foods high in vitamin C had a 33 percent risk reduction of cataract progression.

“The most important finding was that vitamin C intake from food seemed to protect against cataract progression,” said Christopher Hammond, M.D., FRCOphth, professor of ophthalmology at King’s College London and the author of the study. “While we cannot totally avoid developing cataracts, we may be able to delay their onset and keep them from worsening significantly by eating a diet rich in vitamin C.”

About Cataract Surgery

Although the early stages of cataracts can be managed with prescription eye glasses and contact lenses, advanced stages require surgical removal. Cataract surgery is one of the most common and safest surgeries performed today. The procedure involves removing the cloudy natural lens ( cataract ) and replacing it with an artificial intraocular lens (IOL) to restore crisp, clear vision. Recovery from cataract surgery is short. Most patients notice improvements in their vision soon after surgery and are able to return to work a few days after.

To learn more about cataract surgery, please schedule an appointment with cataract surgeon Dr. Mandel by calling 877-210-2020 ext. 3.

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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1237 B Street
Hayward, CA 94541

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

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

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