| 
      
        | c | EyeBlinking Frequency    (Blink/min) | Breakup time (seconds) | Schirmer tear test I (mm) |  
        | Sheep PATG n=20 |  
        | (Mean ± SEM) | 10.7 ± 0.3a | 8.2 ± 0.2b | 22.3 ± 0.6c |  
        | (range) | (815) | (610) | (1530) |  
        | Sheep PATG n=20 |  
        | (Mean ± SEM) | 9.3 ± 0.2 | 8.4 ± 0.2 | 20.4 ± 0.5 |  
        | (range) | (714) | (612) | (1627) |  
        | Tests groups | Eye Blinking Frequency    (Blink/min) | Breakup time (seconds) | Schirmer tear test II (mm) |  
        | People PATG (CDK) n=20 |  
        | (Mean ± SEM) | ND | 9.2 ± 0.7e | 10.1 ± 0.4f |  
        | (range) |  | (614) | (814) |  
        | People PATG (CDK) n=20 |  
        | (Mean ± SEM) | ND | 10.3 ± 0.5 | 11.6 ± 0.6 |  
        | (range) |  | (614) | (814) |  
        |  |  | (715) | (817) |  |
 | 
  |
  
    | ND:Nodone.    SheepPATGvs.sheepCAPT.a:p=0.04;b:p=0.60;c:p=0.27.    IndividualsPATG(CDK)vs.individualsCAPT.e:p=0.33;f:p=0.15. | 
  
    | Table 2: Ocular surface tests. |