The Visual Quality of Healthy Eye Lens for Different Tilt Effects

The importance and accuracy of the human visual system have led scientists researchers to do their best study it, know its problems, how treat them. eye lens tilt is possibly due a specific accident such as blow or like. So, this manuscript was submitted tilting effect on performance determine tolerance values. Using (ZEMAX-EE) software program relying Liou Brennan model Eye (LBME), one most accurate models for studying eye, some basic criteria used describe image formed in an optical system, Modulation Transfer Function (MTF), Root Main Square-spot size (RMSS), simulated including aberration, quality conducted. calculation area under MTF curve also Where tilted from (-5 5) degrees by (1 degree) (X Y) axes, zero decentering, with visible wavelength (0.486, 0.587, 0.656) µm, pupil diameter (2.5 mm), field view (5o).The results were that vision worsened when reduced MTF. Sagittal less sensitive than Tangential nature structure. proved (5) does not affect much, so it necessary values.It concluded inversely proportional increase. Exceeding deterioration increased aberration where ranges (± 5.1) (- 5.9 9) (x y) respectively.