CRT (Corneal Refractive Therapy), also referred as OK (Orthokeratology) lens and/or Dream Lens, is revolutionary technology, which corrects vision without the use of daytime contact lenses, eyeglasses, or surgery.  By using specialized contact lenses, worn only at night, most patients can achieve 20/20 or near 20/20 vision during the day.  The process is only performed by a handful of certified optometrists in the state of Michigan. Dr. Youn has been certified for all available corneal molding procedures.
To be more specific, CRT is a corneal molding technique utilizing FDA approved specialized contact lenses. Both CRT and Lasik surgery achieve the same effect in improving vision by correcting the cornea. However, CRT does not involve any surgery.  The best CRT candidates are people of any age with nearsightedness up to -6.00D with or without astigmatism and farsightedness less than +3.00D with or without astigmatism.  If you are in one of these groups and have a strong desire to have freedom from glasses and daytime contact lens, then CRT could be perfect for you! 

How CRT Works:
CRT lenses are worn at night while sleeping and are removed first thing in the morning. The molding effect of the cornea takes place rapidly while you sleep.  The patient is then closely monitored by Dr. Youn as he uses special noninvasive corneal mapping techniques during the first few days, at which the majority of the eye correction will take place.  Typically, it takes about 3 to 7 days for a CRT patient to achieve a stable daytime correction, however it may take longer for higher prescription corrections.