Davenport Vision Source

02/05/2026

02/03/2026

What is low vision?
Low vision is a term commonly used to mean partial sight, or sight that isn’t fully correctable with glasses, contact lenses, surgery, or medications. This condition is beyond the typical loss of vision that occurs with aging, and in fact, it can impact people of all ages.

Low vision is often caused by these conditions:

Age-related macular degeneration (AMD). AMD is a progressive eye condition. The disease affects the macula (central area of the retina) of the eye, where our sharpest central vision occurs. It leaves only dim images or black holes at the center of a person’s vision, leaving the individual with only the outermost, peripheral vision.
Glaucoma. Glaucoma is a group of conditions that causes damage to the major nerve of the eye called the optic nerve, part of the central nervous system that carries visual information from the eye to the brain. Pressure builds up inside the eye due to an imbalance of the fluid produced in the eye and the amount of fluid drained. Elevated pressure causes optic nerves fibers to die, leading to vision loss.
Cataract. Cataract is a disease that causes blurred vision. This happens when the eye’s lens becomes increasingly opaque, creating pinpoint vision and a feeling of continual fog. Common causes of cataract include aging, diabetes, injury, and cortisone medication.
Diabetic retinopathy. Diabetic retinopathy is caused by changes in the blood vessels of the retina, the light-sensitive tissue at the back of the eye. The blood vessels can swell, close or leak fluid inside the eye, stopping blood from passing through normally. If the retina doesn’t receive the blood it needs to function properly, vision is affected.
The most common causes of low vision in the United States are age-related macular degeneration, glaucoma and diabetic retinopathy. Worldwide, cataract, glaucoma, macular degeneration, and diabetic retinopathy, are four of the five primary causes of vision loss, affecting 120 million people. And there are millions more people living with condition that need routine eye care services to prevent or delay vision loss.

01/07/2026

How does your eye doctor test for Glaucoma?

There are now five different ways to look and test for Glaucoma. The method chosen is carefully considered after conversations with you and your doctor. Some examples of testing are measuring pressure inside the eye, examining the shape and color of the optic nerve, measuring your field of vision, and examining your eyes to see the thickness of the cornea and the angle of the eye. The most important thing to keep in mind is that there are now many options for testing, and your doctor will do what is best for your situation and comfort level.

01/05/2026

What causes Glaucoma?

The main cause is high pressure levels in the eye. If the pressure is too high, it can damage the optic nerve and cause vision loss. There are various types of Glaucoma. Open-Angle and Angle-Closure are the most common, but there are as many as six variations of these two types and all can have different symptoms. Different symptoms of having Glaucoma can include severe eye pain, a feeling of sand in the eye, nausea and headaches, blurred vision, or vision loss. Other times, there are no symptoms at all, or they do not develop until much later. This is why it is so important to visit your eye doctor on a regular basis, because many do not have symptoms and you can be more preventative if you have your eyes checked regularly.

01/03/2026

In honor of Glaucoma Awareness Month, we wanted to spread some awareness of this visual impairment and allow people to have more knowledge about what it encompasses and how it can affect us. Glaucoma is an eye disease that gradually steals your vision. Today, more than 3 million people in America have Glaucoma. About half of them don’t know it. Most people who live with Glaucoma retain their vision, but there are some who have blindness from it. If you regularly visit your eye doctor, you can better detect if you have Glaucoma, and if you do, you will be able to treat it early and be preventative. Watch as we share more information this month.