Table 5 Mean vectors of the precycloplegic, postcycloplegic and difference of refraction in non users
From: Ultrasound biomicroscopy study of accommodative state in Smartphone abusers
Non users | Matrix formalism (n = 40) | Standard notation (n = 40) | ||||
|---|---|---|---|---|---|---|
f11 | f12 | f22 | Sphere (dioptres) | Cylinder (dioptres) | Axis (degree) | |
Precycloplegic refraction | −0.79 | 0.05 | −0.89 | − 0.90 | 0.14 | 111° |
Postcycloplegic refraction | 0.12 | 0.05 | 0.03 | 0.00 | 0.12 | 113° |
Difference of postcycloplegic and precycloplegic | 0.90 | −0.001 | 0.92 | 0.90 | 0.01 | 4° |