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Farsighted Eye - Can see far
- Also known as "Hyperopia."
- See objects better at distance.
- Images is focused behind the retina.
- The eye or some component of the eye might be too flat or too short.
Can it be fixed?
What are the solutions?
It depends on the amount and age of the patient. If, for example, a child is symptom-free and they have small amounts of farsighted-ness we may leave it uncorrected. If however, symptoms appear or the amount changes we can correct this with glasses, soft and RGP (hard) contacts, and laser surgery.
Astigmatism - Stuck in the middle
- Also known as having "cylinder" or a "toric" prescription.
- Difficulty with distance and near.
- Part of the image is focused in front of the retina while the other part behind.
- The eye or some component of the eye might have unequal curves or shapes.
Can it be fixed? What are the solutions?
If the eyeball, lens, or cornea is not perfectly round, a person may have astigmatism. In fact, 85-90% of all prescriptions show some amount of astigmatism. This can occur with being farsighted, nearsighted or alone. Uncorrected astigmatism generally causes blurred and distorted vision. Astigmatism causes annoying problems such as tiled or distorted objects, eyestrain, headaches, eye fatigue, sensitivity to light, and poor visual concentration.
Nearsighted Eye - Can see near
- Also known as "Myopia."
- See objects better at near.
- Images is focused in front of the retina.
- The eye or some component of the eye might be too steep or too long.
Can it be fixed? What are the solutions?
Yes, generally as you are growing up your
prescription might get "a little worse." However in some rare cases people have "progressive
myopia" which is generally due to genetic factors. You can also have "functional
myopia" at any age due to stress from close tasks such as reading, computer use,
etc. Fixes include: glasses, soft and RGP (hard) contact lenses, and surgery (LASIK,
lens replacement, etc).
Presbyopia - Ahh... the dreaded "bifocals"
- Near or reading vision becomes difficult
- Start around age 40 for everyone
- Hyperopic or farsighted people will notice it first
- Nearsighted people can remove glasses for sometime
Can it be fixed? What are the solutions?
Presbyopia may seem sudden but actually occurs over a few years. One misunderstanding is presbyopia is a weakening of the eye muscles but actually it is a loss of elasticity in the lens of the eye. Presbyopia constantly changes and you may require yearly updates. As we age, the lens gets progressively weaker requiring us to wear stronger glasses. As noted above, wearing correction for presbyopia does not cause your eyes to weaken; that will happen regardless. Fixes include bifocals, trifocals, progressive addition lenses (no-line), and surgical lens implants.
Want to learn more fun things about the eye?
Interesting Eye Facts ! Take the quiz!
The eye weighs ?
A) About 10 grams (around a sharpie marker)
B) About 28 grams
C) About 41 grams
D) About 56 grams
We learn how much from our eyes?
A) 30% of all learning
B) 55% of all learning
C) 70% of all learning
D) Over 80% of all learning
Your eyes can see the light of a candle from? A) 5 miles
B) 10 miles
C) 14 miles
D) 21 miles
The eyes use how much of our brain power?
A) 15%
B) 25%
C) 65%
D) 85%
How many times do you think you blink per day?
A) 1,500 times per day
B) 5,000 times per day
C) 10,000 times per day
D) 15,000 times per day
Did You know:
A frogs eyes help it push food down its throat!
The eye muscles are the only muscles which don’t require rest. Yep, they can work continuously!
Next to the brain, the eye is the most complex of all organs!
Your optic nerve, the part which connects the eye to the brain has over 1 million fibers... In just 5 mm diameter!
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