| Content: |
Eye to comprehend hammer environments, pupil and duty to give information about the same time anomalies, provide information about the visual mechanism, transfer brain reviewing body, the senses of sight to give information about the transfer of the eye to the brain , to determine the quality of one eye and both eyes to see , far point , close point and introducing the nodal point concept , explaining the eye refractive errors , abnormal eye away from the near point and the introduction of the nodal point of the concept is to comprehend theoretical information about which can be seen in the human eye and to introduce the form of invisible field. |