I was not admitted, saying that my eyesight did not meet the physical examination standards for seafarers. Who can tell me what the standard is?

Article 29 Vision: The naked vision of each eye is less than 4.9(0.8), and students majoring in command, submarine, surface boat, tank, profile painting and radar are unqualified. The far vision of each eye is above 4.8(0.6), or the naked vision of one eye is above 4.7(0.5) and the naked vision of the other eye is above 4.9 (0.8); Or the naked-eye farsighted vision of each eye is above 4.6(0.4), and the corrected vision of each eye is above 4.9(0.8), and the technical student is qualified. Relatively speaking, undergraduate or junior college graduates can relax appropriately, and the far vision of each eye is above 4.6(0.4).