The Positive: 1  Exercises using a cable puts muscles under a constant tension. With free weights, the angle of joints are often changing, thus the resistance on the muscle is also changing. 2  Cable machines can be extremely versatile. They can be used for a wide range of exercises through complete ranges of motion.
As these blood vessels leak fluid, they damage retinal cells. Over the course of days or weeks, scar tissue forms, creating a blind spot in the center of your vision. Although wet AMD occurs in only about 10 percent of cases, it's responsible for nearly 90 percent of severe vision loss from this disease.
blind spot, 1 a normal gap in the visual field occurring when an image is focused on the space in the retina occupied by the optic disc. 2 an abnormal gap in the visual field caused by a lesion on the retina or in the optic pathways or resulting from hemorrhage or choroiditis, often perceived as light spots or flashes. Ophthalmology. (1) A small circumscribed area of the retina where the optic nerve enters the eye; occurs normally in all eyes.