
Dr. Dr. Todd Cohan, OD
Optometrist
3500 W Peterson Ave Suite 401 Chicago IL, 60659About
Dr. Todd Cohan is an optometrist practicing in Chicago, IL. Dr. Cohan specializing in providing eye care services to patients. As an optometrist, Dr. Cohan performs eye exams, tests vision, corrects vision by prescribing eye glasses or contacts, detects certain eye disorders and manages and treats vision problems. Optometrists often work closely with ophthalmologists who may need to further treat patients with surgical procedures.
Education and Training
Indiana University Bachelor Degree 0
Illinois College of Optometrists Doctor of Optometry degree 0
Provider Details

Dr. Dr. Todd Cohan, OD's Expert Contributions
My nephew is 7 years old and has been diagnosed with cataract. What should we do?
You should seek out a couple opinions from different pediatric ophthalmologists in regard to best treatment. READ MORE
Why do my eyes turn bloodshot by the end of the day?
They are dry and tired. Use tear drops throughout the day like Systane complete 1 drop 3x a day. READ MORE
What should I do for recurrent pink eye?
Never is a strong term. Don't touch your eyes, and use Avenova spray every night to help minimize the bad bacteria around your eyelid margins. READ MORE
My eyes are puffed up and feel heavy. Why?
If both eyes are puffy, most likely seasonal allergies, but you should have it checked by an eye care professional. READ MORE
Are there any drops to keep my eyes clear of infections?
I would recommend Avenova spray every night. READ MORE
What causes dry eyes?
There are lots of reasons for dry eye: medications, computer use, hormonal changes, autoimmune issues, etc. These days, we are seeing lots of dry eye even in young patients due to excessive computer use. The most common cause of dry eye is Meibomian gland dysfunction. READ MORE
What will happen if I sleep with my contact lenses?
You can get an eye infection unless the brand of your lenses is fda approved for overnight wear. READ MORE
Does LASIK surgery have any side effects in the long term?
It most often will cause dry eyes down the road as well as some increased nighttime glare. READ MORE
I have a problem seeing in dim light. Could it be night blindness?
Possible or a macula pigment deficiency. Get a comprehensive dilated eye exam. READ MORE
Can the UV rays make someone blind?
Wear polarized sunglasses and don't look into the sun READ MORE
I am have hazy vision in the mornings. Could it be due to my blood pressure?
Yes. You should get your eye pressure and retina health checked as well. READ MORE
Is there any supplement to improve eyesight?
Not really but we highly recommend this vitamin. https://www.eyepromise.com/product/eyepromise-screen-shield-teen-2/?utm_medium=ppc&utm_source=adwords&utm_campaign=Branded READ MORE
My mother is a blood pressure patient. Will this cause complications in her cataract surgery?
It shouldn't but make sure the surgeon knows ahead of time READ MORE
I am having a dull pain in my left eye along with a minor headache. What could this be?
It could be several different things. I would suggest you get it checked out. READ MORE
Is there such a thing as a whole-eye transplant surgery?
No. Unfortunately not. READ MORE
Can high thyroid hormone levels also affect the eyesight of a person?
Yes by all means it could. READ MORE
I had corrective eye surgery, but I still can't read without glasses. Is something wrong?
That's normal if you are close to or are in your 40s. Your doctor should have told you that. It's called presbyopia. READ MORE
Can blood pressure medicines cause blurred vision?
Yes. It could be. READ MORE
My son has been having a yellowish discharge from his eyes. What could this be?
Bacterial conjunctivitis (aka pink eye). Should have antibiotic eye drops and in the first 48 hours if contagious. READ MORE
My refractive error in both the eyes is about 6. Can you please suggest a possible treatment?
Glasses or contacts or Lasik or corneal refractive therapy, which involves sleeping with contacts at night to correct your vision during the day. READ MORE
Areas of expertise and specialization
Dr. Dr. Todd Cohan, OD's Practice location
Practice At 3500 W Peterson Ave Suite 401
3500 W Peterson Ave Suite 401 -Chicago, IL 60659Get Direction
Forsight Vision
4160 Il Route 83 Ste 107 -Long Grove, IL 60047Get Direction
Dr. Dr. Todd Cohan, OD's reviews
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Get to know Optometrist Dr. Todd Cohan, who serves patients in Long Grove, Illinois.
An established optometrist, Dr. Cohan is affiliated with Forsight Vision in Long Grove, Illinois. He practices full scope optometry, providing treatment and management of ocular diseases, corneal refractive therapy, and contact lenses and vision therapy. He continues to be on the forefront of technology to provide the most up-to-date and comprehensive care for his patients for the treatment and management of all types of ocular disease.
Maintaining his strong commitment to vision development, he continues to specialize in pediatric vision care programs, including particular expertise in vision therapy and the diagnosis and treatment of learning related vision problems. He also specializes in hard-to-fit contact lenses as well as extensive expertise fitting bifocal contact lens patients.
Academically, Dr. Cohan is a graduate of Indiana University, where he earned a Bachelor of Arts degree in Psychology. He earned both a Bachelor of Science degree in Visual Science and his Doctor of Optometry degree from the Illinois College of Optometrists (ICO), and was the sole recipient of ICO’s College of Optometrists in Vision Development Award for excellence in vision therapy and pediatrics. He achieved Clinical Honors in all of his optometric rotations during his externship year of optometry school.
In his professional experience, he lectures frequently on contact lenses to other optometrists for Alcon Vision Care as well as being a pre-clinical evaluator for newly developed contact lenses before they are launched nationally. He also serves as an optometric medical billing consultant helping fellow optometrists institute the medical model of optometry to their practices.
Optometry is a health care profession that involves examining the eyes and applicable visual systems for defects or abnormalities, as well as diagnosing and managing eye disease. Optometrists are healthcare professionals who provide primary eye care through comprehensive eye examinations to detect and treat various visual abnormalities and eye diseases. Being a regulated profession, an optometrist’s scope of practice may differ depending on the location. Thus, disorders or diseases detected outside the treatment scope of optometry (i.e. those requiring certain surgical interventions) are referred out to relevant medical professionals for proper care, more commonly to ophthalmologists who are physicians that specialize in the tertiary medical and surgical care of the eye. Optometrists typically work closely together with other eye care professionals, such as ophthalmologists and opticians, to deliver quality and efficient eye care to the general public.
Recommended Articles
- What are the Causes and Symptoms of Pink Eye?
Pink eye, or conjunctivitis, is a contagious eye condition caused by the inflammation and infection of the conjunctiva. The conjunctiva is the transparent membrane covering the white part of the eye and the eyeball. Infection and swelling of the the mucous membrane becomes reddish, and the entire...
- What to Expect After LASIK Eye Surgery
LASIK eye surgery is a corrective procedure that aims to rectify vision distortions that are caused by the changing curvature of the cornea and shifting length of the eyeball. The cornea is a transparent coating that bulges on the outside of the eyeball, and allows light to penetrate its surface at...
- What Causes Iritis?
What is iritis?The colored part of the eye is called the iris. When the iris gets inflamed, the condition is called iritis, which is also called anterior uveitis. The muscles present in the iris help in pupil contraction and relaxation. The anterior and posterior chambers of the eye are also...
- What is Secondary Cataracts?
Everyone who has had their cataracts removed surgically remembers how happy they felt when they finally regained their ability to see. The world all of a sudden became more lively and full of color. You began doing things you couldn't do when you had the cataracts. But then you began noticing your...
- What Could a Swollen Eyelid Mean?
Your eyelid’s skin is stretchy and loose with a thickness of less than 1 mm. Your eyelids can swell if there is a buildup of fluid in the tissues that surround your eyes.In most cases, swollen eyelids are not a cause for concern and can return back to its normal shape and size after a few days....
- What Causes Albinism?
What is albinism?Albinism is a group of genetic disorders that cause little or no production of the natural pigment called melanin. The color of your skin, hair, and eyes depend on the type and amount of melanin produced by your body. Most individuals with albinism have sun sensitivity, which makes...
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