The term “vision loss” can refer to either the complete or partial loss of vision. When a person begins to experience sight loss, they may experience a variety of symptoms, such as blurred vision, the presence of spots in their central vision, and the loss of peripheral vision.
Vision loss is a common occurrence. According to the
In this article, we outline the symptoms of vision loss and discuss the potential causes of blindness. We also list possible treatments and tips for healthy eyes.
If a person is experiencing sight loss, they may develop a number of symptoms. These
- blurred vision
- hazy vision and cloudiness
- wavy lines or spots in their central vision
- restricted peripheral vision
- poor vision at night or in the dark
- difficulty seeing colors
Below are some of the potential causes of vision loss.
Age-related macular degeneration
Age-related macular degeneration (AMD) occurs when aging
AMD is one of the leading causes of vision loss in older adults. It does not cause complete blindness, but losing the central vision can make it harder to:
- see faces
- do close-up work, such as cooking or fixing things
A cataract is a cloudy area that appears
When a person is young, their lens is often clear. Then, as they age, proteins in the lens begin to break down and clump together. These clumps cause the lens in the eye to become cloudy, causing cataracts.
Cataracts can take time to develop, and a person may not notice they have a cataract at first. Over time, the cataract can worsen, making a person’s vision:
- less colorful
Cataracts are a
Diabetic retinopathy (DR) is a potential complication of diabetes. DR occurs when diabetes causes damage to the blood vessels of the retina. The retina is the light-sensitive tissue at the back of the eye. DR varies in severity depending on the number of blocked blood vessels, but it can lead to permanent vision loss.
According to the
In the early stages of DR, a person may not experience any symptoms. Others may experience symptoms such as having trouble reading or seeing objects that are far away. These changes may come and go. In the later stages of DR, a person may see floating spots or streaks in their vision.
Early diagnosis and treatment of DR can help reduce the risk of vision loss. However, around 50% of people with DR receive a diagnosis that is too late for treatment to be effective.
Glaucoma is the name for a group of eye diseases that
In its early stages, glaucoma may not cause a person to develop any symptoms. Over time they may start to slowly lose their vision. This often begins with peripheral vision.
Currently, there is
Treatments for vision loss depend on the cause. Below are different treatment options for certain causes of vision loss.
There is currently
Wet AMD is a less common type of AMD that causes faster vision loss. If a person has wet AMD, a doctor may recommend anti-VEGF drugs and photodynamic therapy.
If a person has early stage cataracts, they may be able to make the
- using brighter lights at home or work
- wearing anti-glare sunglasses
- using magnifying lenses for reading and other activities
A new prescription for eyeglasses or contact lenses can help a person see better with cataracts. If a person’s cataracts start to get in the way of everyday activities, a doctor may suggest they have surgery to remove them.
Treatment for DR
- Injections: A doctor may inject anti-VEGF drugs into the eye to slow down or reverse DR.
- Laser treatment: Laser treatment can reduce swelling in the retina. Doctors can also use lasers to make the blood vessels shrink and stop leaking.
- Eye surgery: If the retina is bleeding a lot or there is excessive scarring in the eye, an eye doctor may recommend a type of surgery called a vitrectomy.
Treatment for glaucoma
- Medications: Prescription eye drops are the most common treatment for glaucoma. They lower the pressure in the eye and prevent damage to a person’s optic nerve.
- Laser treatment: Doctors can use lasers to drain fluid from the eye to reduce pressure.
- Surgery: If medications and laser treatment do not work, a doctor may suggest surgery. There are a number of types of surgery that can help drain fluid out of the eye.
To help prevent vision loss and maintain good eye health, the
- visiting an eye doctor for a regular comprehensive dilated eye exam
- carefully managing:
- blood sugar levels
- blood pressure
- being aware of family eye health history
- eating a healthy, balanced diet
- maintaining a moderate weight
- wearing protective eyewear where necessary
- avoiding smoking
- wearing sunglasses that block out 99–100% of both UVA and UVB radiation
- taking regular screen breaks
- properly cleaning hands and contact lenses
If a person notices a change in their vision, they should contact an eye doctor right away. This is because early diagnosis and treatment are
The term “vision loss” can refer to either the complete or partial loss of vision. Common symptoms of vision loss include blurred vision, the presence of spots in central vision, and the loss of peripheral vision.
There are a number of possible causes of vision loss, including AMD, cataracts, DR, and glaucoma. If a person experiences signs of vision loss, they should contact an eye doctor right away. This is because early treatment is important in helping prevent further damage to the eye.