At Acacia Medical Center, world renowned expert Dr. Seyed Hamid Sajjadi provides routine and sub-specialized medical and trauma eye care for all ages. Clinical examinations and services at our center can be obtained for virtually every eye and vision disorder.

We have specialized treatments for:
  •   Refractive Surgeries.


      Catarct surgery

      Corneal transplant and diseases.

      Strabismus (crossed eyes) and Amblyopia treatment up to age 18 (lazy eyes).

      Glaucoma diagnosis, Laser and Surgery.

      Retinal diseases, Laser and surgery.

      Neuro-ophthalmology specializing in diagnosing all forms of headaches, Migraine, dizziness and Vertigo.

What is Refractive Surgery?

Refractive surgeries relieve or reduce dependence on glasses or contact lenses. Some options include:

  • Laser: Which includes Lasik (any flap making whether with automatic Machine or Laser).
  • Laser without flap, for patients with Keratoconus form Fruste or thinner corneas.
  • Intra-corneal rings for irregular astigmatism and Keratoconus.
  • Intraocular permanent second lenses also called, Artisan, or ICL.
  • Laser Astigmatic Keratotomy.

How can you prevent the need for Refractive Surgery for children and adults?


  • For Children: An ounce of prevention is worth a ton of treatment. This is especially true for children. Our emphasis is not to miss any condition that may cause decreased vision in children. This includes lazy eyes (Amblyopia), Migraine (headaches ) in children, need for glasses and crossed eyes. These are relatively common disorders that are often missed. In the past 10 years it has become evident that the lazy eye can be treated up to around the age of 18. We have had many 12-18 year olds that have tripled or quadrupled their vision with laser and Amblyopia therapy.

    The more rare conditions are congenital cataracts, corneal opacities and or glaucoma. These may need surgical intervention as early as first few weeks or months of life. The sooner you treat a condition in a child the better the recovery.

  • For Adults over age 19: There are a variety of diseases that are relatively common that may cause damage to the optic nerves and eventual decreased vision, one important one that is usually missed is Migraine headaches. We specialize in diagnosing Migraine types and offer speciliased treatment along with our neurology team. Adults (and children) should be examined by a Neuro-Ophthalmologist, which is an eye doctor that specializes in Neurology of optical system. A variety of systemic diseases cause decreased vision and damage to optic nerves such as rheumatoid diseases, Vitamin B12 and D deficiencies,Thyroid and Para-thyroid diseases and a variety of infectious diseases such as multiple sclerosis, that may not be severe enough for the patient to notice but severe enough to cause extensive optic nerve and or retinal damage.

What is a Cataract?

We all have a natural lens inside of our eyes. This is called the crystalline lens. This lens helps 15% our ability to focus.  Contrary to popular belief 85% of focusing in the eye is done by the cornea and not the lens. As our eyes age or other diseases affect the eyes, the natural lens becomes cloudy and disturbs usable vision. This is called a cataract. However a hardening of the lens is also a cataract called nuclear sclerosis which is the start of needing reading glasses at age 45 but does not require cataract surgery. Not every cataract needs surgery. So we choose our patients due to their visual needs and not when they have a simple cataract. For example an 80 year old lady with nuclear sclerosis may see 0.8 or 80% vision which may be enough for her to do her daily chores. On the other hand a 62 year old professor with 0.8 vision with a posterior sub-capsular cataract may not be able to do his or her daily chores making cataract and intraocular lens replacement surgery necessary.

Is Cataract Surgery painful?

Cataract surgery now days is relatively simple procedure for patients, however it is not by any means minor surgery. Most people say that there is no little or no pain during or after cataract surgery. There will be some redness for as little as 3 days or sometimes 3 weeks.

What are the precautions post Cataract Surgery?

For the first few hours after surgery, an eye patch is placed on the healing eye and the effects of anesthesia will be wearing off. During this time, we recommend restful activity. Eating, watching television, reading, and walking around the house are allowed. After the eye patch is removed, patients can begin administering their postoperative eye drops.

For the first few days after surgery, heavy lifting (more than 20 pounds) is not allowed, and we recommend avoiding eye makeup for one week. There are other restrictions as well after surgery. These are fully discussed with you by our team before surgery.

According to Dr. Seyed Hamid Sajjadi, this is often misdiagnosed and occurs in 70% of the population. He believes that contact lenses actually mask Keratoconus and makes it worse. If detected early, special surface lenses can be used to stop progression and worsening of the situation, which in some cases is loss of vision.

What is Keratoconus?

Keratoconus is a condition where the cornea becomes more cone-shaped and may undergo progressive thinning. The treatment in the past has been hard contact lenses or piggy-back soft-Hard contact lenses and corneal transplant. Contact lenses mask progression of keratoconus and in our opinion should not be fitted when other modalities such as intra-corneal rings can treat and stabilize the condition. Corneal transplant is an external source of tissue which always has risk of rejection. Again with laser and rings corneal transplants have become a decreasing choice of treatment.

What are the symptoms of Keratoconus?

Frequent changing of glasses or contact lens prescriptions (with high levels of astigmatism)
Experiencing Glare
Blurring and distortion of vision
Light sensitivity and increased irritation
If you experience one or more of these symptoms, contact your ophthalmologist
for a complete exam, to confirm if you are suffering from Keratoconus.

What Causes Keratoconus?

New research suggests the weakening of the corneal tissue that leads to keratoconus may be due to an imbalance of enzymes within the cornea. This imbalance makes the cornea more susceptible to oxidative damage from compounds called free radicals, causing it to weaken and bulge forward.

Risk factors for oxidative damage and weakening of the cornea include a genetic predisposition, explaining why keratoconus often affects more than one member of the same family.

Keratoconus also is associated with overexposure to ultraviolet rays from the sun, excessive eye rubbing, a history of poorly fitted contact lenses and chronic eye irritation.

The first step in any treatment for diabetic eye disease is to maintain blood glucose, blood pressure, and blood cholesterol levels as close to normal as possible. EARLY DETECTION of diabetic retinopathy is the best protection against sight loss. This is possible by having a complete eye examination including retina check-up once a year or more frequently if advised. In most cases the ophthalmologist can then begin treatment before sight is affected.

How Does Diabetes Cause Diabetic Retinopathy?

Diabetes mellitus (DM) causes abnormal changes in the blood sugar (glucose) that your body ordinarily converts into energy to fuel different bodily functions.

Uncontrolled diabetes allows unusually high levels of blood sugar (hyperglycemia) to accumulate in blood vessels, causing damage that hampers or alters blood flow to your body's organs — including your eyes.

What are the symptoms Of Diabetic Retinopathy And Other Diabetes-Related Eye Problems?

You first may notice diabetic retinopathy (DR) or other eye problems related to diabetes when you have symptoms such as:

  •   Fluctuating vision

      Eye floaters and spots

      Development of a scotoma or shadow in your field of view

      Blurry and/or distorted vision

      Corneal abnormalities such as slow healing of wounds due to corneal abrasions

      Double vision

      Eye pain

      Near vision problems


During an eye examination, your eye doctor will look for other signs of diabetic retinopathy and diabetic eye disease. Signs of eye damage found in the retina can include swelling, deposits and evidence of bleeding or leakage of fluids from blood vessels.

Who Gets Diabetic Retinopathy?

Beyond the presence of diabetes, how well your blood sugar is controlled is a major factor determining how likely you are to develop diabetic retinopathy with accompanying vision loss.

Uncontrolled high blood pressure (hypertension) has been associated with eye damage related to diabetes. Also, studies have shown a greater rate of progression of diabetic retinopathy in diabetic women when they become pregnant.

Of course, the longer you have diabetes the more likely you are to have vision loss.

The American Academy of Ophthalmology (AAO) notes that all diabetics who have the disease long enough eventually will develop at least some degree of diabetic retinopathy, though less advanced forms of the eye disease may not lead to vision loss.

What are the other types of this condition?

Background retinopathy - Your blood vessels are damaged, but you can still see OK. It can get worse if you don't manage your diabetes well.

Maculopathy- This is damage to the macula, a critical area of your retina. It can greatly affect your vision.

Proliferative retinopathy- It happens when cells at the back of your eye don’t get enough oxygen and new blood vessels start to grow. They’re fragile, so they can bleed and lead to a clot. This can cause scars and pull your retina away from the back of your eye. If it gets detached, you could have vision loss that can't be fixed. Sometimes this condition can be treated. Surgery is an option, so is a laser procedure that burns away the blood vessels. It can prevent blindness in up to half the people with early retinopathy.

What is Galucoma?

Glaucoma is a leading cause of blindness in the world but it should not be. If diagnosed early it will not cause decrease in vision. Since high pressure in the eye is painless, without routine eye exams it will be missed. When a patient can notice decreased vision in an eye there is usually 50% damage done to the optic nerve if from glaucoma. That is why a complete eye exam should be done at age 4, then every 4 years after that. If you have a condition you may need closer exams.

What is the treatment for Glaucoma?

Glaucoma may be treated with eye drops, pills, and or laser surgery, or traditional surgery with or without shunts. The goal of any treatment is to prevent loss of vision, as vision loss from glaucoma is irreversible. The good news is that glaucoma can be managed and if detected early, with medical and/or surgical treatment, most people with glaucoma should not lose their any further sight after diagnosis

What is Vitrectomy Surgery?

Vitrectomy is a type of eye surgery that treats disorders of the retina and vitreous.

The retina is the light-sensing tissue at the back of the eye. The vitreous is the clear, jelly-like substance that fills the middle of the eye.

The vitreous gel has to be cut in tiny pieces and removed during Vitrectomy surgery and usually replaced by normal or specia lized solutions. Most often it is eventually replaced by patient's aqueous humor fluid that fills the front of the eye. Vitrectomy surgery often improves or stabilizes vision. The operation removes any blood or debris (from infection or inflammation) that may be blocking or blurring light as it focuses on the retina.

Vitrectomy surgery removes scar tissue that can displace, wrinkle, or tear the retina. Vision is poor if the retina is not in its normal position. This surgery can also remove a foreign object stuck inside the eye as the result of an injury. Most foreign objects will damage vision if they are not removed.

  •   Corneal transplant and diseases.

      Watery/Dry eye management including Blocked tear duct plugs and surgery

      Neuro-ophthalmology specializing in diagnosing all forms of headaches, Migraine, dizziness and Vertigo.