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.


Is Too Much Screen Time Hurting Your Eyes?

Take a moment to think about all the time you spend looking at screens throughout the day. Between your smartphone, tablet, laptop, desktop, gaming system and television, you may be spending more time looking at a screen than you do sleeping.

But what is this digital dependence doing to your eyes? Can screen time actually hurt your eyes and vision? Bay Area laser eye surgery specialist Mark Mandel, MD, explains what you need to know here.

Understanding Digital Eye Strain

One of the threats of so much screen time is a condition called digital eye strain, or a collection of symptoms that affect over half of all people that work in front of a computer. Digital eye strain symptoms include itching, burning or dry eyes, eye fatigue and headaches.

Experts believe these symptoms are caused by too much exposure to the “blue” light emitted by most digital devices. These very short, high energy wavelengths of light are thought to irritate the eyes, and some scientists even believe they can cause long-term damage to the retinal cells (though this is being debated).

The blue light emitted by digital devices also disrupts natural sleep patterns, which can contribute to eye strain.

Another factor that can fatigue the eyes is focusing at the near range of a digital device like a cell phone, tablet or laptop. This tires the eye’s muscles over time. And, people tend to blink less when fixated on a screen; a slower blink rate dries out the eyes.

How to Protect Your Eyes from Digital Eye Strain

There are a few things you can do to protect yourself from the eye damage associated with electronic devices. Obviously, it’s a good idea to limit screen time when not working. But it is impossible for many people to avoid using screens at work.

Following the 20-20-20 rule is helpful. Every 20 minutes, take a 20-second break to focus on an object 20 feet away. Look into special blue light filters, which may limit how much blue light reaches the retina, for your work computer, or download a blue light filter app for your smartphone. Reduce overhead lighting to eliminate screen glare. Finally, remind yourself to blink often, perhaps by placing a Post-It note on your work computer, which can help keep the eyes moist.

Email Our Bay Area Vision Specialist

If you have any questions about digital eye strain, feel free to email Mark Mandel, MD.

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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