Mirror Therapy program for 2 weeks and convantional physiotherapy for 4 weeks. Exercises Frequency: 5 days/week; 2 days with the physiotherapist, other days as home program; 2 weeks in total. Exercises Duration: 20 minutes. Exercises Repetation: 20 repetation for each exercise.

Convantional physiotherapy for 6 weeks. Exercises Frequency: 3 times a day, 4 weeks in total. Exercises Duration: 15-20 minutes. Exercises Repetation: 10 repetation for each exercise.

Mirror therapy is the treatment method in which mental performance of movements is performed by observing the movements of the healthy extremities. In the case of mirror treatment, the mirror box is placed on a fixed floor. The mirror is positioned so that the patient's body can be fully centered and the mirror image can be seen. While the affected limb is placed on the rear side of the mirror, the firm extremity is opposite to the mirror. The patient focuses on the mirror image of the moving healthy hand and, through artificial visual feedback, perceives the affected limb as moving. The exercises are as follows: flexor tendon gliding exercises, median motor exercises, wrist and forearm ROM exercises and function-oriented exercises.

It is a self-administered questionnaire that assesses the severity and functional status of typical 24-hour symptoms of patients with Carpal Tunnel Syndrome (CTS) during the last two weeks. The Symptom Severity Scale (SSS) consists of 11 questions evaluating the severity, frequency, duration and types of symptoms. The answers that can be given to each question are scored between 1 and 5. The SSS score is calculated by dividing the total score by the number of questions answered. A high score means that the symptoms are more severe. The Functional Status Scale (FSS) consists of 8 questions that assess how much the CTS affects daily life. The degree of difficulty in doing activities is scored between 1 and 5. The FSS score is calculated by dividing the total score by the number of questions answered. Higher score means less functional capacity.

In this study, the outcome measure is assessing the change of functional activity and symptoms from pre-operative at 3 and 6 weeks.

It is used to evaluate patients' hand and finger skills. The pegboard is placed in the middle of the body. It is desirable that 9 wooden pins be placed randomly in the 9-hole wooden block as fast as possible, and then the pins are removed from the wooden block and placed in the storage compartment one by one. These times are measured and recorded with a stopwatch. A total of 20 seconds or more is considered a "loss of skill".