Contact ONO Eyecare Center 1345 S Diamond Bar Blvd, #C Diamond Bar, CA 91765 Phone: (909) 653-1888 Send Us A Message NameThis field is for validation purposes and should be left unchanged.Please use this form for general information purposes only. DO NOT send personal health information through this form. Specific patient care must be addressed during your appointment.Name*Phone*Email* MessageCAPTCHA