Dr. John McDougall started International Eyecare Center, Inc. in 1981 after working for four years in an ophthalmology settin ... g in Quincy. Since that time, IEC has expanded to include seven offices throughout Illinois and Missouri. Dr. McDougall's flagship office and IEC corporate offices are located in Quincy, Illinois. His Quincy office is considered one of the largest single optometric practices in the country read more