Your eye doctor can detect changes to your eyes during routine eye exams. They’ll also check your overall eye health and monitor for vision problems. Often, the first signs of eye conditions are only visible in microscopic images or discovered using advanced diagnostic technology.
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Cataracts can be seen by the naked eye in later stages, but what can you see in the early stages?
There are different types of cataracts, and symptoms can vary depending on the type and development stage. Still, the first sign of cataracts is usually blurry or hazy vision.
Is Blurry Vision the First Cataract Symptom?
Blurry vision is typically the earliest and most common sign of cataracts, caused by protein breakdown in the eye’s lens that scatters light and reduces clarity. As the lens becomes cloudy, vision may appear hazy, dim, or less sharp, even with updated prescriptions. This change often develops gradually, making it easy to overlook in early stages.
Blurry vision is often the first noticeable change people experience when cataracts begin to form. It may start as mild haziness or difficulty focusing, especially in low light or while reading. Unlike normal vision changes, this blurriness doesn’t fully improve with new glasses or contact lenses.
Tip: If your vision still feels unclear after updating your prescription, it may be time to check for early cataracts.
What Are the Early Signs of Cataracts?
A cataract is when a spot or cloudy area develops in your eye’s clear lens, which sits behind the iris (the colored part of the eye). The lens is flexible and changes shape to control light as it enters the eye, stretching to change focus for near or far distances.Â
The lens is primarily made of proteins, which can break down and clump together naturally over time. These clumps decrease the lens’s flexibility, causing the tissue to become rigid and opaque and preventing light from entering the eye.
How the cataract impairs your vision depends on its size, location, and thickness. There are several types of cataracts, including:
- Nuclear cataracts form in the middle of the lens, causing the nucleus (center) to become yellow or brown.Â
- Cortical cataracts appear like streaks around the edges of the nucleus, slowly growing closer to the center.
- Posterior subcapsular cataracts can develop quickly, forming at the back of the lens.
Imagine getting a crack in your car’s windshield. When it first happens, it may be annoying, but you can still see clearly around the thin crack. But the damage can grow and spread, making it more challenging to see around it.
A crack on the passenger side affects your field of view, but you may not notice it when looking straight ahead. Conversely, a crack directly in front of you (or in central vision) can affect your vision more quickly.
Cataracts can affect your vision in the same way. A nuclear cataract may impair your vision more directly than a cortical cataract, even in the early stages. As cataracts grow or thicken, your vision will become more impaired.
Signs and symptoms of cataracts typically include:
- Blurry or cloudy vision
- Difficulty seeing at night
- Faded or washed-out colors
- Frequent prescription changes
- Lights (& sunlight) seem too bright
- Halos appearing around lights
- Seeing double
What Causes Cataracts?
Aging is the most common risk factor when predicting cataract development. Still, there are additional risk factors that can affect all ages. For example, infants and children can develop pediatric cataracts due to inherited conditions, injuries, or infections.
Other common risk factors include:
- Aging
- Diabetes
- Eye trauma
- Heavy alcohol consumption
- High blood pressure
- Medication side effects
- Poor diet & nutrition
- Obesity
- Smoking
- Sun damage
Cataracts vs. Presbyopia
At a glance, presbyopia may seem similar to cataracts. Both usually develop because of natural lens changes as we age, and both cause blurry vision. However, there are 2 significant differences:
- Presbyopia only affects close vision (like reading), whereas cataracts can cause cloudy vision at all distances.
- Presbyopia can significantly impair vision, but it won’t cause complete blindness. Cataracts are a leading cause of blindness in older adults.
There is no way to reverse the natural changes causing presbyopia or cataracts. However, patients can control or limit some of the additional risk factors contributing to the lens changes. Additionally, there are many management methods to help improve vision, for presbyopia and cataracts.
Talking to your eye doctor and receiving a diagnosis as soon as possible can help ensure you receive appropriate care.
How to Tell If You Have Cataracts or Need New Glasses
Cataracts and vision changes from refractive errors can feel similar, but cataracts cause cloudiness in the lens, while glasses correct how light focuses on the retina. If vision remains blurry even after updating your prescription, cataracts may be the underlying cause.
It’s common to assume worsening vision just means you need stronger glasses. However, cataracts affect the lens itself, which glasses cannot fully correct.
Here’s a simple way to tell the difference:
- Glasses issue: Vision improves clearly with a new prescription
- Cataracts: Vision remains dull, cloudy, or inconsistent
- Glare sensitivity: More common with cataracts
- Night vision problems: Often linked to cataracts
Tip: If you’re updating your prescription frequently without clear improvement, ask your eye doctor about cataract screening.
When to See an Eye Doctor for Cataract Symptoms
You should see an eye doctor when vision changes begin affecting daily activities such as reading, driving, or recognizing faces, as early detection helps manage cataracts before they significantly impair vision.
While early cataracts may not require immediate surgery, regular monitoring is essential. An eye doctor can track progression and recommend the right time for treatment.
You should schedule an eye exam if you notice:
- Persistent blurry or cloudy vision
- Difficulty seeing at night
- Increased light sensitivity
- Frequent prescription changes
- Halos around lights
Quick Fact: The CDC reports that more than 20 million Americans aged 40 and older have cataracts.
Tip: Don’t wait until vision loss is severe. Early diagnosis gives you more treatment options and better outcomes.
Managing Cataracts
There are many management solutions to improve vision problems occurring in the early stages of cataracts. Glasses or contact lenses are an accessible way to sharpen blurry vision, but you may need frequent prescription updates as the cataract changes.
Adding more light sources to indoor environments can also improve your vision, and anti-glare filters, sunglasses, or prescription lenses can help reduce light sensitivity or halos.
However, these nonsurgical methods can become ineffective if your cataracts progress and symptoms worsen.
Laser cataract surgery is an outpatient procedure that replaces your natural lens with an artificial intraocular lens implant (IOL). The natural lens is broken into pieces with a femtosecond laser so the incision can remain small for faster recovery. Once the lens is broken, the pieces are then properly removed. Our experienced team can usually complete the procedure with the LenSx system in 6–8 minutes. Most of our patients notice improved vision within 24 hours.
Removing the natural lens eliminates the risk of cataracts developing again. There are also multiple types of lens implants to enhance your vision. Multifocal IOLs improve near, intermediate, and far-distance vision. Depending on the lens chosen, patients may no longer require corrective lenses to see clearly.
Discuss Your Options
More than half of Americans develop cataracts by age 80.Â
When you notice the first signs or symptoms, visit Albemarle Eye Center. We want to help you preserve your vision. Talk with our eye doctors to learn about your management options. Book your appointment today!
Frequently Asked Questions
What is usually the first sign of cataracts?
The first sign of cataracts is typically blurry or cloudy vision, caused by protein buildup in the eye’s natural lens that interferes with the passage of light. This can make vision appear hazy, dim, or less sharp over time. In the early stages, the change is gradual and may only be noticeable in certain lighting conditions.
Can cataracts start with mild blurry vision?
Yes, cataracts often begin with mild blurry vision that gradually worsens as the lens becomes more opaque. This early blurriness may come and go, making it easy to confuse with normal vision changes or eye strain. Over time, the blurriness becomes more consistent and noticeable.
How early can cataracts be detected?
Cataracts can be detected in very early stages during a comprehensive eye exam, often before noticeable symptoms appear. Eye doctors use specialized imaging and magnification tools to identify subtle lens changes that are not visible to the naked eye. Early detection allows for better monitoring and timely treatment planning.
Do cataracts cause glare at night?
Yes, cataracts commonly cause increased glare and halos around lights, especially at night. This happens because the cloudy lens scatters incoming light, making headlights, streetlights, and bright sources appear more intense or distorted. Night driving is often one of the first activities affected.
Can an eye exam detect early cataracts?
Yes, a routine eye exam can detect early cataracts even before vision is significantly affected. Eye doctors examine the lens for clarity and assess how light passes through the eye to identify early clouding. Regular eye exams are essential for early diagnosis and monitoring progression.
