## 3 Results  
### Descriptive Results  
This study sample comprised 34 elite male football players with a mean age of 25.5 \(\pm\) 4.5 years, a mean height of 1.79 \(\pm\) 0.08 m, a mean body weight of 73.4 \(\pm\) 9.6 kg, and a mean body mass index (BMI) of 22.9 \(\pm\) 1.5 kg/m\({}^{2}\). The analysis focused on parameters related to visual function and postural stability, with results presented in Tables 1 and 2. The mean logMAR static visual acuity values were \(-\)0.01 \(\pm\) 0.10 for the right eye, \(-\)0.02 \(\pm\) 0.10 for the left eye, and \(-\)0.03 \(\pm\) 0.09 for binocular vision. No significant differences were identified between the right and left eyes (\(p\) = 0.158). The mean spherical equivalent (M) was 0.06 \(\pm\) 0.44 D for the right eye and 0.07 \(\pm\) 0.50 D for the left eye, with no statistically significant differences between eyes (\(p\) = 0.686). Similarly, the mean astigmatic components showed no significant interocular differences (J0: \(p\) = 0.130; J45: \(p\) = 0.059). Anisometropia, defined as the absolute difference in the spherical equivalent between the eyes, averaged 0.29 \(\pm\) 0.31 D. Based on ametropia classification, 5.9% of the athletes were myopic, 79.4% were emmetropic, and 14.7% were hyperopic. Regarding postural stability, the mean mediolateral deviation in the frontal plane (Xmean) was \(-\)1.18 \(\pm\) 10.09 mm, indicating a slight leftward tilt with high variability. In the sagittal plane, the mean antero-posterior deviation (Ymean) was 43.42 \(\pm\) 19.67 mm, reflecting a pronounced forward lean (anterior body inclination relative to the vertical axis of balance). The mean center of pressure (CoP) displacement from the central point (DistMean) was 6.74 \(\pm\) 2.13 mm. The sway area (Surface), covering 90% of the CoP distribution, was 300.55 \(\pm\) 157.07 mm\({}^{2}\). Total sway amplitude (Length) was 889.10 \(\pm\) 270.52 mm, with medio-lateral (LengthX) and antero-posterior (LengthY) sway amplitudes averaging 729.77 \(\pm\) 262.81 mm and 377.95 \(\pm\) 93.63 mm, respectively. The postural stability index (LFS), reflecting energy expenditure to maintain balance, averaged 1.75 \(\pm\) 0.50 mm, while velocity variability (VarV) was 115.24 \(\pm\) 56.46 mm, suggesting increased rigidity in some participants. The load distribution analysis revealed a mean load of 0.28 \(\pm\) 0.07 mm on the left forefoot (LF), 0.24 \(\pm\) 0.09 mm on the left rearfoot (LR), and 0.30 \(\pm\) 0.07 mm and 0.18 \(\pm\) 0.07 mm on the right forefoot (RF) and rearfoot (RR), respectively. These findings indicate a relatively balanced plantar distribution with slight forefoot predominance. The antero-posterior load ratio (APR) was \(-\)16.50 \(\pm\) 25.19, reflecting anterior load bias, while the left-right load ratio (LRR) averaged 3.07 \(\pm\) 9.53, suggesting a slight preference for the left side. The vertical variability index, representing postural asymmetry (IVV (PA)), averaged \(-\)0.01 \(\pm\) 0.16 mm, suggesting minimal lateral dominance. Bilateral coordination between the feet (IntCorLR) was 0.76 \(\pm\) 0.15, approaching the lower limit of normal, indicating a potential need to enhance intersegmental stability. The Romberg quotients for surface area (QRBG(Surf)) and velocity variance (QRBVV) were