Almost all retinal detachments can be repaired with scleral buckle surgery, pneumatic retinopexy, or vitrectomy. But even with such a high rate of success for surgery, it is important to act quickly. The longer you wait to have surgery, the lower the chances that good vision will be restored.
The Earth's axis runs through the North and South poles and it is the line around which the Earth rotates. The geographic North Pole is located approximately 450 miles (725 km) north of Greenland, in the middle of the Arctic Ocean - the sea there has a depth of 13,410 feet (4087 meters).
The north celestial pole currently is within a degree of the bright star Polaris (named from the Latin stella polaris, meaning pole star).olaris can, of course, only be seen from locations in the northern hemisphere. Polaris is near the celestial pole for only a small fraction of the 25,700-year precession cycle. It will remain a good approximation for about 1,000 years, by which time the pole will have moved to be closer to Alrai (Gamma Cephei).