False. All squares are rhombuses, but not all rhombuses are squares. A square is a parallelogram with four congruent sides and four right angles. A rhombus is a parallelog â¦ ram with four congruent sides, but it doesn't necessarily have to have right angles. 12 people found this useful.
Age-related macular degeneration, often called AMD, usually affects older adults and results in a loss of vision in the center of the visual field (the macula) because of damage to the retina. It occurs in âdryâ and âwetâ forms, and is a major cause of blindness and visual impairment in adults over 50 years of age.
Note that the definition of legal blindness differs from country to country and that the criteria listed above are for the US. Legally blind has nothing to do with the prescription numbers. Legally blind means that your best vision cannot be corrected with glasses or contact lenses any better than 20/200. A normal person with 20/20 vision can see objects clearly that is 200 feet away from him, while the legally blind person can only see the object clearly that is 20 feet away from him.