EYE CONDITIONS
Our eyes are amazing part of our body that help us process life visually, and provide us with a lifeline to everyday tasks and moments.
By the time progress, you might not have any symptoms at first but cataract may develops which can cause change in your vision. When your cataract affects quality of your life, you should get surgery which may also give you the opportunity to address other eye conditions: Presbyopia and Astigmatism.
Presbyopia: Definition and Causes
Presbyopia is a visual condition that develops gradually over time and typically becomes apparent after age 40 for most of people, when they start having trouble seeing nearby objects and small print clearly such as text messages on their phone. It is an age-related process.2 This condition is characterized by a loss of lens elasticity, which causes defective accommodation and diminishes the ability to focus on nearby objects.1
Although presbyopia cannot be prevented, Presbyopia-correcting intraocular lenses (IOLs) can expand your range of clear vision. Trifocal IOLs eliminate presbyopia and provide patients clear and spectacle-free vision at all distances.3
Signs and Symptoms of Presbyopia1
- A need for reading glasses
- A tendency to hold reading material farther away in order to make the letters clearer
- A blurred vision at normal reading distance
- Eyestrain or headaches after reading or performing close-up work
Astigmatism: Definition, Causes and Treatment
Astigmatism is an imperfection in the curvature of your eye’s cornea or lens. Astigmatism is a common visual impairment that causes blurred vision at all distances.4 If your cornea or lens isn't evenly curved, light rays aren't refracted properly. With astigmatism you have blurred or distorted vision at near and far distances.5
Signs and Symptoms of Astigmatism
Astigmatism symptoms may include 6:
- Blurry vision or areas of distorted vision
- Eyestrain or eye discomfort
- Headaches
- Squinting to try to see clearly, or
- Difficulty with night vision / poor night vision
How to correct Astigmatism
Normally If you do not have a cataract, astigmatism can be treated with spectacles or special contacts. However if you have cataracts, there are several ways modern cataract surgery can correct astigmatism. One option is to replace the eye's cloudy natural lens with a special type of premium intraocular lens (IOL) called a toric IOL.4 Surgeon can implant a toric intraocular lens (IOL) in the eye to correct astigmatism and remove a cataract at the same time.5 There is an advantage of using a toric IOL to correct astigmatism when a cataract is removed: Because the IOL is positioned securely inside the eye, it can provide a more stable correction of astigmatism than a toric contact lens, which moves on the surface of the eye with each blink.7
