Abnormally shaped eyeballs are found in anyone who is farsighted or nearsighted, and it means that their eyes don’t refract light properly. Incoming light rays need to converge on the retina at a certain depth inside of the eye, or your vision can and will blur. Glasses and contact lenses are a way to fix this in people who have abnormally-shaped eyeballs, and surgery can help fix common vision problems as well.
These conditions are most likely inherited. Myopia, also known as nearsightedness, will usually be discovered by the time a child reaches grade school, but it can continue to worsen as they become an adult. Retinal detachment is a risk for anyone who is severely nearsighted, and that can lead to complete vision loss. People with this condition must be monitored by an eye doctor regularly.
How Nearsightedness and Farsightedness Affect Vision
Myopia, also known as nearsightedness, is caused by a longer than normal eye or the cornea having too many curves. This means that the light rays will enter the eye and not hit the retina correctly. With myopia people can see print or close objects clearly, but far away objects are usually very blurred.
Farsighted people, a condition also known as hyperopia, have shorter than normal eyes, or their corneas are curved too little. Close objects won’t focus correctly because the light will hit the retina incorrectly, and this makes the objects blurry. Farther away the objects become clearer.
Problems seeing TV, a movie, or even a blackboard are common for anyone who is nearsighted. Children will not usually recognize their sight problems, leading to academic difficulty.
Farsightedness leads to eyestrain, fatigue after reading or numerous activities that are close-up, a hard time concentrating, headaches, and the inability to do close work. One example is threading a needle.
How to Diagnose Nearsightedness and Farsightedness
To diagnose these conditions your eye doctor must test you by having you read lines on eye charts both distant and close up because this tests your visual acuity. A phoropter will be used, holding various lenses, and it measures refractive errors. This means it measures how far off the way you see light rays are. To check how th back of the eye in the retina reflects, your eye doctor will shine a light in your eye as well.
How to Correct Myopia and Hyperopia
Common methods to correct these diagnoses is to use contact lenses or eyeglasses. Eyeglasses will compensate for the abnormal shape of the eye, and it’ll help the rays hit the retina properly, correcting your vision. Contact lenses will also refocus the light. Sometimes contact lenses are better at improving vision due to how they sit directly on the eyes. However, they are more care.
Surgery is another available option. There are two very popular types of laser eye surgery, which are photorefractive keratectomy that helps those with myopia and LASIK (situ keratomileusis) for both. It removes corneal tissue and helps to reshape the eye. Therefore correcting the problem.
If a correct diagnosis is given and treatment precedes it, vision can clear up with the help of any of these procedures. Optometrist or ophthalmologists will help you understand your options.