Short Sighted Vs Long Sighted Vision - Definitions, Causes and More
Short and long-sightedness are common vision disorders caused by eye structure issues. The shape of the eye may be too long, too short, or too rounded, distorting images. Glasses or contact lenses are needed to help refract the light correctly because the eye can’t correct its shape, but laser eye surgery can repair the eye shape. let’s dive into everything about short sighted vs long sighted and its types, symptoms, and treatments.
What is Short-Sightedness?
Short-sightedness is also called nearsightedness or myopia. Short Sightedness occurs when the cornea and lens are too strong or the eye is too long. This causes the light to focus in front of the retina. People who are short-sighted can focus on close objects, and those in the distance appear blurred.
Myopia can worsen during growth spurts in the pre-teen and teen years when the body grows quickly, but by the age of 20, it usually stabilises. When an adult is diagnosed with myopia, it’s usually caused by stress, diabetes, or cataracts.
Types of Myopia
Myopia, or short-sightedness is a common, mild condition that requires visual aids. However, there are rare, severe forms – high myopia and degenerative myopia. High myopia occurs when a child’s eyeballs grow longer or the cornea is too steep. It has a refractive error greater than negative six and can progressively worsen until the 20s. High myopia increases the risk of cataracts, glaucoma, and detached retinas later in life. Understanding long-sighted and short-sighted meanings helps in identifying vision issues accurately.
Degenerative myopia is a severe form of myopia because it damages the retina and is a leading cause of legal blindness.
Symptoms of Short-Sightedness
The following signs are common in children and adults with myopia:
- Headaches
- Eye strain
- Squinting
- Holding objects close to see clearly
- Objects in the distance appearing blurred
- Tiredness when looking in the distance
Causes of Short-sightedness
The cause of myopia is unknown, but it’s thought to have originated by inheritance or environmental factors. At least one or both parents likely have myopia when a child is diagnosed with the condition. Moreover, environmental factors include doing a lot of close-up, focused work such as reading or computer work. As mentioned, the condition usually emerges during childhood or adolescence when the eye is growing but stabilises in early adulthood. Nevertheless, in some cases, myopia doesn’t level out and worsens with age. Around 25% of the Australian population are myopic.
Treatment of Short-Sightedness
The most common way to address myopia in children and adolescents is with glasses, while contact lenses are also an option for teens and adults.
The first clinical trial of low-concentration atropine drops in Australian children was recently conducted, and the results were published in August 2022. The trial found promising results, with the atropine drops slowing down myopia progression by 35% and slowing down eye growth by 33% after 18 months of treatment.
For those people wanting to correct their myopia, laser eye surgery is also an option. Myopia patients can access refractive eye surgery to permanently improve their eyes. In most cases, LASIK eye surgery is recommended.
LASIK (laser in-situ keratomileusis) is a technique using the SCHWIND ATOS to create a partial thickness flap of the cornea. The excimer laser then reshapes the surface beneath the flap. Patients with a thin cornea may be advised to have PRK (PhotoRefractive Keratectomy), another form of laser refractive surgery. Your laser eye surgeon will discuss the best option for you when you visit Lions Laser Vision.
What is Long-Sightedness?
Long-sightedness is also called far-sightedness and hyperopia. Long-sightedness occurs when the cornea and lens aren’t strong enough or the eye is too short. Light is then focused behind the retina.
Hyperopia often occurs in childhood before the age of 10 but usually improves as the eye grows and glasses are no longer needed. Long-sightedness can develop in adults in their 20s and 30s, which is often noticed in their reading vision. Progression usually continues until the eyes stabilise in the early 60s. After the age of 50, people with hyperopia may also notice their distance vision becoming blurry. At this point, one will need to upgrade their glasses to bifocal or varifocal glasses (or have two pairs of different strengths).
As we age, it becomes more difficult to see objects in the near distance and later to see in the distance.
Causes of Long-Sightedness
Most people who are far-sighted were born with it. There is a greater chance of being far sighted if other members of the family are.
Other causes include some medications, cancer around the eye, and diabetes.
Symptoms of Long-Sightedness
The signs of hyperopia include:
- Difficulty seeing things up close
- Tired, sore eyes
- Headaches
- Eye discomfort after doing close tasks
A child with severe farsightedness is at greater risk of crossed eyes or lazy eyes.
Treatment of Long-Sightedness
Eyeglasses and contact lenses are commonly used to treat far-sightedness.
Adults can be treated with laser eye surgery. The laser is used to steepen the cornea’s shape and cause the focusing point on the eye to move forward and match up with the surface area of the retina. Most cases of hyperopia are treated with our LASIK procedure, but your eye surgeon will discuss the best options for your case. Hyperopic laser eye surgery patients benefit most from laser eye surgery. Most patients notice improvements in vision at every distance. However, the condition progresses with age, meaning laser eye surgery isn’t a permanent cure.
How Will You Know If You’re Short or Long-Sighted?
If you start noticing objects appear blurry up close or in the distance, don’t hesitate to visit an optometrist for a simple eye test that will tell you if you are short-sighted or long-sighted. We hope now you have some better understanding about short sighted vs long sighted as understanding the differences between long-sighted and short-sighted meanings is crucial for proper diagnosis and treatment planning.
If you have any questions or wish to discuss laser eye surgery further, please contact us online or call (08) 9381 0758 to speak with one of our clinical coordinators. Alternatively, you can take our free online suitability test to find out if you may be eligible for laser eye surgery.
Contact Lions Laser Vision
Please call us at Lions Laser Vision and speak with one of our clinical coordinators who will be able to answer your questions and schedule an initial consultation with one of our refractive surgeons.
Alternatively, complete the form below and we will get back to you as soon as we can.
PHONE: 08 9381 0758
FAX: 08 9381 0700
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Lions Eye Institute
Lions Laser Vision
1st Floor,
2 Verdun Street
Nedlands WA 6009
St John of God Murdoch
Murdoch Medical Centre
Suite 4B,
Ground Floor,
100 Murdoch Dr
Murdoch WA 6150