Charles Ahn, MD, Naperville Ophthalmologist

Charles S. Ahn, MD


439 Ratings
Years in Practice: 25 years
Practices In: Downers Grove, Naperville
Patients Seen: Adolescents and Adults

I believe in treat­ing patients with their best inter­est in mind and to treat them with com­pas­sion as I would want to be treat­ed. I strive to uti­lize the lat­est in tech­nol­o­gy, tech­niques and exper­tise in man­ag­ing patients to obtain the best pos­si­ble outcomes.

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Board Certifications
English, Korean
Awards & Accolades
Resident Research Fellowship, University of Illinois 2000
Chicago Magazine, Top Doctors 2022
Clinical Interests

Com­plex cataract surg­eries, Corneal trans­plan­ta­tions, Refrac­tive surgery

Personal Interests

Spend­ing time with my fam­i­ly, Human­i­tar­i­an work involv­ing mis­sion trips to pro­vide both med­ical and sur­gi­cal care to those in need, Ten­nis, Golf, Ski­ing, Ice hockey

American Academy of Ophthalmology American Society of Cataract and Refractive Surgery Illinois Association of Ophthalmology International Society of Refractive Surgery
Advocate Good Samaritan Hospital
3815 Highland Avenue Downers Grove, Illinois 60515 630-275-2700 Get Directions
Edward Hospital
801 S. Washington St. Naperville, Illinois 60540 630-527-3000 Get Directions
University of Michigan Medical School Graduation Date: 1993 Degree: MD
University of Illinois at Chicago Resident in Ophthalmology
University of Utah, John Moran Eye Center Cornea, External Disease and Refractive Surgery


Cataract Evaluation and Surgery, Cornea Transplant Surgery, DALK, DMEK, DSAEK, ICL Surgery, PKP, PRK, Phacoemulsification & Intraocular Lens Implants, Pterygium Surgery, Refractive Surgery, YAG Laser Iridotomy and Capsulotomy


Eye Infections, Ocular Trauma


Ratings Category

The Patient Satisfaction Rating score is an average of all responses to care provider related questions on our independent rating system, the Press Ganey Patient Satisfaction Survey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Learn more about our patient satisfaction survey.

Patient Satisfaction Rating

439 Ratings

Ease of scheduling appointments

432 Ratings

Provider showed concern

433 Ratings

Provider explained things clearly

431 Ratings

Provider included you in decisions

422 Ratings

Likelihood of recommending this provider

429 Ratings


Comments are collected in our Press Ganey Patient Satisfaction Surveys. Patients are de-identified to protect confidentiality and patient privacy. Learn more about our patient satisfaction survey.
"Will highly recommend Dr. Ahn to others."
Aug. 19, 2022
"An excellent provider."
Aug. 16, 2022
"I felt the physician was a good referral for my need and concern. I have a plan toward the next stage with the doctors onsite and future appointment. He was kind to give more information toward the kind of surgery involved etc. Its now a waiting for the condition to reach the stage for surgery. He agrees with last years suggested alternative implemented to get me through involving dual prescription glasses adjusted to match a customized formulation need to use both daily to function especially a work etc."
Jul. 30, 2022
"Very thorough"
Jul. 26, 2022
Jul. 13, 2022
"Dr. Ahn's professional qualities are unquestionably of the very highest standard."
Jul. 12, 2022
"Dr Ahn is my new BEST friend! He came in BEFORE the procedure to see me and answer ALL my questions which relaxed me. Great bedside manners. Absolutely GOLD STARS to him!!!!"
Jun. 16, 2022
"For Ahn and staff very impressive!"
Jun. 12, 2022
"Good experience with straight forward explanation!"
Jun. 10, 2022
"Dr. Ahn is the best! tech had to do numerous tests and did an awesome job."
Jun. 6, 2022
"My care provider dr ahnn is very good and he listen and guide very good"
Jun. 5, 2022
"I've been a patient of Dr Ahn for years. He's very good at managing my care and options."
Jun. 1, 2022
"Dr. Ahn is very professional, excellent listener a great doctor. Excellent diagnostician."
May. 25, 2022
May. 20, 2022
"Dr Ahn is Outstanding!!! He set modest expectations and delivered AMAZING Results!!! I was a bit apprehensive thinking about DSEK eye surgery. DSEK is fairly complex procedure, Dr Ahn broke things down so it was easy to understand. We came through two sugeries R/L eyes and I am so happy with the results and working with Dr Ahn!! I cannot say enough good thing about Dr Ahn"
May. 20, 2022
"Dr. Ahn is one the best doctors I've had in my 65+ years. Skill level is expectional."
May. 12, 2022
"Dr Ahn gave clear directions for my meds and future follow up!"
May. 9, 2022
"Dr. Ahn is an amazing physician. His down-to-earth persona is rare. I found him to be Empathetic. His ability to listen was exceptional. I have never seen a physician who displayed these extraordinary & unique traits. He was humble and did not come across as condescending (like most of the physicians today)."
May. 7, 2022
Apr. 29, 2022
"Great staff and doctors. Thank you!"
Apr. 26, 2022
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