By age 80, most people will either have cataracts or have undergone cataract surgery. While cataract surgery is common and recognized as safe and effective, the appropriate timing for surgery can vary from one person to the next.

Understanding cataract progression, how diagnosis works and what surgeons look for can help you determine when you may need surgery for your cataracts.

How Cataract Diagnosis Works

Your doctor may use a few different tests to determine whether you have cataracts, including:

• Slit Lamp Exam: This test uses a special microscope with a bright light to examine the front parts of your eye, including the cornea, iris, and lens. It helps detect cloudiness in the lens that may indicate cataracts.
• Dilated Eye Exam: Your doctor will place drops in your eyes to widen (dilate) the pupils, allowing a better view of the lens and retina at the back of the eye. This helps identify cataracts and rule out other eye conditions.
• Tonometry (Fluid Pressure Test): This test measures the pressure inside your eye and is primarily used to screen for glaucoma. While it doesn't diagnose cataracts, it helps identify or rule out other causes of vision problems.
• Refraction and Visual Acuity Tests: These tests measure how well you see at various distances and how clearly. They help assess the impact cataracts may be having on your vision.

How Surgeons Determine Whether It’s Time for Surgery

Diagnosing cataracts is just one piece of the puzzle when considering surgery. You may have cataracts and still not require surgery just yet.

Often, doctors will use a process called staging to know when to take action. There are four stages of cataracts:

1. Early cataracts. You may experience slightly blurry vision.
2. Immature cataracts. You may have blurred vision in low-light scenarios.
3. Mature cataracts. At this stage, you may have difficulty driving at night.
4. Hypermature cataracts. Your eyes appear yellow and cloudy.

In the early stages, cataracts may be insignificant enough to not dramatically impact your vision. But as time goes on and the condition progresses, your vision will inevitably be significantly affected, potentially to the point of blindness if not treated.. 

While cataracts generally progress slowly, it’s important to remember that everyone is different. In some cases, surgery may be recommended in the early stages if symptoms or other issues warrant.

In other cases, doctors may recommend waiting until the condition impacts your daily quality of life (such as your ability to drive confidently at night).

Signs That You May Need Cataract Surgery

While every person is unique, the severity and/or combination of the following cataract symptoms may indicate a need for surgery:

• Blurred vision: A common sign that you may need cataract surgery. Blurry vision may make it difficult to read, recognize faces or carry out other daily tasks. Over time, the blurriness will worsen.
• Seeing halos around lights: Another classic symptom of cataracts, seeing halos is a clear sign that surgery may be needed. This visual disturbance can make it dangerous to drive at night.
• Heightened light sensitivity: Bright sunlight, headlights or streetlights may cause discomfort. Light sensitivity can make it harder to do everyday tasks.
• Double vision in a single eye: When double vision only impacts one eye, this is an indication that the cataract is progressing and may need to be removed.
• Changes in color vision: Colors may appear faded or have a yellowish tint.

Seeing your eye doctor regularly for comprehensive eye exams is an important first step in diagnosing and measuring the progression of your cataracts. As symptoms worsen, your ophthalmologist will discuss the need for surgery to improve your vision.

If you or someone you love is experiencing cataract symptoms, contact North Florida Cataract Specialists and Vision Care today at 352-373-4300 to schedule an appointment.