Optometry Expert Dr. Spencer Franz Identifies Common Causes of Blurry Vision and Warning Signs

Dr. Spencer Franz explains how prescription changes, dry eyes, and underlying eye conditions can cause blurry vision and when an exam is needed.

CARLSBAD, N.M., Nov. 9, 2026 /PRNewswire/ -- What does it mean when your vision suddenly becomes blurry, or you notice it worsening over time? That's the focus of a HelloNation article featuring Optometry Expert Dr. Spencer Franz of Vision Source Carlsbad. The article explores the most common reasons behind blurry vision and when it's time to schedule a routine eye exam.

Blurry vision affects many people and often develops so gradually that the change goes unnoticed until it begins to interfere with daily life. As explained in the article, one of the most frequent causes is a shift in glasses or contact lens prescriptions. Vision naturally changes over time, and these adjustments may cause subtle symptoms like eye strain or headaches long before blur becomes obvious. A routine eye exam helps identify these vision changes early and allows for updated correction.

Another widespread cause of blurry vision is dry eye, especially in Carlsbad's dry and windy climate. When the tear film on the eye evaporates too quickly, vision may fluctuate throughout the day. The HelloNation article explains that temporary relief may come from blinking or using artificial tears, but recurring blur can be a sign that the eyes are not staying properly lubricated.

The article emphasizes that blurry vision is not always about prescriptions. It can also point to deeper issues with overall eye health. People who spend long hours on digital screens may develop eye strain, which reduces the eyes' ability to maintain clear focus. Prolonged screen use, combined with decreased blinking, contributes to dryness and blurred vision that worsens later in the day.

Astigmatism is another common reason for blurred or distorted vision. It results from an irregular shape in the eye's cornea or lens, causing light to scatter unevenly. According to Dr. Franz, some people live with mild astigmatism for years without realizing it, until tasks like reading or night driving become more difficult.

Age-related changes are also highlighted in the HelloNation feature. Presbyopia, which typically starts in the forties, makes it harder to focus on near objects. Many people start holding books or phones farther away or increasing font sizes. While these may seem like simple habits, they can be early signs of vision changes that benefit from a professional evaluation.

Blurry vision can also be a sign of more serious eye conditions. The article mentions cataracts, glaucoma, and macular degeneration as potential causes. Cataracts create cloudiness in the lens. Glaucoma may affect side vision without warning signs. Macular degeneration targets central vision and may cause blur or distortion. A routine eye exam helps detect these conditions early, often before symptoms become severe.

Systemic health conditions like diabetes and high blood pressure can affect the blood vessels in the eyes and cause vision changes. The HelloNation article notes that in some cases, an eye exam can be the first place where signs of these health issues appear. Eye health and overall health are closely connected, making eye exams important for more than just clear vision.

Environmental factors in Carlsbad can also play a role. Bright sunlight, glare, and airborne dust can aggravate existing vision issues or make them more noticeable. Wind and dry air can worsen dry eye, which may cause blurry vision that comes and goes.

Dr. Franz emphasizes that people should not ignore blurry vision. Sudden changes, pain, or flashes of light require immediate care. Gradual blur, especially if it interferes with driving or screen use, is also a reason to book an eye exam. Even mild vision changes should be addressed before they begin to affect daily life.

Blurry Vision? These Are the Most Common Causes and When to Book an Exam features insights from Dr. Spencer Franz, Optometry Expert of Carlsbad, NM, in HelloNation.

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SOURCE HelloNation