Distinguish Between Myopia and Hyperopia and Outline How Technologies Can Be Used to Correct These Conditions.
Distinguish between MYOPIA and HYPEROPIA and outline how technologies can be used to correct these conditions.
Hyperopia and Myopia are both vision problems and refractive errors but Hyperopia, more commonly known as farsightedness, is when a person has trouble seeing things far away but has no trouble seeing them close up, Myopia is known as near-sightedness, it is when the person can see things far away with no problems but when things are closer to them they have trouble focusing on them and their vision goes blurry.
Hyperopia is caused when light rays are bent so they travel to a point beyond the retina instead of directly on it. This is because the eye is too short, the cornea is not as curved as it should be or if the lens sits further back than normal.
It can be inherited, or heighten your chances of forming it.
Most people are born with either emmetropia or slight hyperopic vision, but this usually grows out as the infant grows and has been fully grown out by 4-5 years of age.
Myopic vision is caused when the eyeball is too long, or the lens is too curved. It causes light to focus in front of the retina instead of directly on the surface.
It is usually inherited but a growing cause is frequent prolonged use of a computer screen or reading small texts frequently also on a regular basis.
Both problems can grow out with age giving the person emmetropia, which is perfect vision (20/20). Presbyopia occurs with old age, were the lens becomes less and less flexible, so that muscle can adept less to the movements. Eventually the lens becomes essentially fixed, focused on infinity.
Symptoms Myopia * Headaches * Eyestrain * Squinting to look at something * Fatigue-while driving -Playing sport -Looking at signs or something far away * Children complain of not being able to see the board at school
Hyperopia * Straining eyes to be able to see * Blurry vision * Headaches * Children complain of
Hyperopia and Myopia are both vision problems and refractive errors but Hyperopia, more commonly known as farsightedness, is when a person has trouble seeing things far away but has no trouble seeing them close up, Myopia is known as near-sightedness, it is when the person can see things far away with no problems but when things are closer to them they have trouble focusing on them and their vision goes blurry.
Hyperopia is caused when light rays are bent so they travel to a point beyond the retina instead of directly on it. This is because the eye is too short, the cornea is not as curved as it should be or if the lens sits further back than normal.
It can be inherited, or heighten your chances of forming it.
Most people are born with either emmetropia or slight hyperopic vision, but this usually grows out as the infant grows and has been fully grown out by 4-5 years of age.
Myopic vision is caused when the eyeball is too long, or the lens is too curved. It causes light to focus in front of the retina instead of directly on the surface.
It is usually inherited but a growing cause is frequent prolonged use of a computer screen or reading small texts frequently also on a regular basis.
Both problems can grow out with age giving the person emmetropia, which is perfect vision (20/20). Presbyopia occurs with old age, were the lens becomes less and less flexible, so that muscle can adept less to the movements. Eventually the lens becomes essentially fixed, focused on infinity.
Symptoms Myopia * Headaches * Eyestrain * Squinting to look at something * Fatigue-while driving -Playing sport -Looking at signs or something far away * Children complain of not being able to see the board at school
Hyperopia * Straining eyes to be able to see * Blurry vision * Headaches * Children complain of