When is the Right Time for Cataract Surgery? How to Distinguish It from Presbyopia

Dr. Kim Min-kyung, Ophthalmologist | BGN Eye Clinic Jamsil Lotte Tower

"The text looks overlapping, and my vision is as foggy as a mist. Do I need surgery right away?"

Hello, I am Dr. Kim Min-kyung, an ophthalmologist at BGN Eye Clinic Jamsil.

When meeting patients from Seongnam and Bundang in my consultation room, their primary concerns are usually when to undergo surgery and the approximate costs involved.

Many patients visit our clinic complaining of severe dimness and eye fatigue in their daily lives due to cataract symptoms.

Because we are dealing with your most precious sense; your vision, it is imperative to prioritize comprehensive eye examination results over temporary promotional advertisements.

1. Why Are Cataracts and Presbyopia So Confusing?

Presbyopia and cataracts share very similar early symptoms, making them two of the most difficult causes of vision decline for patients to distinguish on their own.

As we age, it is easy to dismiss blurred vision or overlapping text as simple aging. However, in many cases, presbyopia and cataracts progress simultaneously.

Presbyopia is a natural aging process where the eye's focusing ability decreases, making it difficult to read near text.

In contrast, a cataract is a disease where the crystalline lens inside the eye becomes cloudy, causing the entire field of vision to appear foggy.

Because it is difficult to accurately distinguish the two based on symptoms alone, it is highly recommended to determine the exact cause through a comprehensive examination at a specialized eye clinic.

2. Early Cataract Symptom Checklist

As the opacity of the lens worsens, the following practical cataract symptoms become more pronounced.

If you experience two or more of the symptoms listed below, there is a high probability that your cataracts have already progressed to a moderate level or beyond.

In this state, you should promptly visit a trusted eye clinic to have your eye structure accurately diagnosed.

• Overlapping text: Even when viewing objects with one eye covered, images overlap and sharpness decreases.
• Foggy vision: Even with clean glasses or contact lenses, your vision constantly remains blurry and hazy, as if looking through a haze.
• Increased night glare: When going out in the dark evening, light spreading widely around streetlamps makes visibility difficult.
• No effect from new glasses: Even if you increase your prescription multiple times, you cannot achieve clear vision.

These symptoms occur because light cannot pass normally through the clouded lens.

Therefore, rather than dismissing them as mere fatigue or presbyopia, it is critical to confirm the root cause through a detailed examination.

3. When Should You Decide on Cataract Surgery?

When is the most rational time to schedule your cataract surgery to guarantee lifelong visual satisfaction?

The timing for cataract surgery should primarily be based on the level of discomfort you experience in your daily life, rather than relying solely on visual acuity numbers.

Key Considerations for Cataract Surgery:

• Difficulty reading text during office work or reading.
• Trouble securing clear vision due to light glare while driving at night.
• Continuous decline in vision, even with newly prescribed glasses.

Even if early-stage cataracts are detected during an examination, immediate surgery is often unnecessary.

However, if your daily discomfort increases, deciding on surgery at the appropriate time is essential.

4. What to Check Before Cataract Surgery

Cataract surgery is not merely the process of removing a cloudy lens; it is a crucial treatment that determines your visual acuity and life satisfaction.

Therefore, when choosing a clinic, it is vital to comprehensively evaluate the medical team's experience, examination systems, and post-operative care, rather than just focusing on cost.

• First, the surgeon's expertise: The delicate skill required to create micro-incisions and position the lens flawlessly stems from extensive clinical experience.
• Second, 50+ specialized precision tests: Accurately assessing potential issues like intraocular pressure, retinal diseases, and glaucoma is necessary for a secure prognosis.
• Third, 1:1 intensive post-operative monitoring: Safe recovery requires meticulous care until the lens is completely settled.
• Fourth, advanced equipment: Utilizing state-of-the-art technology that minimizes cellular stimulation inside the eye is essential for a faster visual recovery.

Selecting a clinic that seamlessly integrates all these standards is the most rational shortcut to maximizing the perfection of your cataract surgery.

5. Intraocular Lens Comparison (Monofocal vs. Multifocal)

During surgery, the clouded, non-functioning lens is precisely removed, and a semi-permanent, customized intraocular lens is securely implanted.

With brilliant advancements in medical technology, high-performance multifocal designs that simultaneously and organically correct both presbyopia and cataracts are now widely utilized.

The most suitable intraocular lens varies depending on your primary viewing distance, frequency of indoor/outdoor sports, and daily driving habits.

Please review the distinct differences between monofocal and continuous multifocal lenses in the table below.

Cost Benefit Tip: How to Check Your Private Health Insurance Coverage
Unlike monofocal lenses covered by national health insurance, functional multifocal lens implants are non-covered items, leading to cost variations depending on the design. Since coverage conditions may vary based on your individual private health insurance's enrollment year and terms, please consult your insurance provider about the multifocal coverage ratio after your detailed eye exam. We recommend thoroughly comparing options before deciding on the optimal surgery time.

6. Cataract Surgery FAQ

When is the right time for cataract surgery?

The timing for cataract surgery is best determined by the degree of discomfort in your daily life, rather than simple visual acuity test numbers. For instance, when you experience visual decline such as blurred text or difficulty driving at night due to glare, it is a key time to consider surgery. However, since early cataracts share symptoms with presbyopia and are hard to self-diagnose, a detailed exam is necessary. Also, deciding on surgery before the lens becomes overly mature is crucial for preventing complications.

How do I distinguish between presbyopia and cataracts?

Because their early symptoms are similar, distinguishing them yourself is difficult, requiring an eye exam. Presbyopia is an aging phenomenon where the eye's focusing power drops, blurring near text. Cataracts, however, involve a cloudy lens that makes the entire field of vision hazy. Objective diagnosis using medical equipment is the most reliable method.

Is cataract surgery dangerous?

Cataract surgery is known to be relatively safe and usually proceeds without major complications. Recently, micro-incision techniques have been used to reduce tissue damage and speed up recovery. Although daily vision is often restored by the next day, eye drop treatments and regular check-ups are needed for about 1 to 2 months for stable results.

Are multifocal lenses absolutely necessary?

Multifocal lenses are not mandatory; the choice depends on your lifestyle and eye condition. If you drive frequently at night or prioritize contrast sensitivity, monofocal lenses might be better. Conversely, if you want to reduce the inconvenience of reading glasses and desire natural vision from near to far, multifocal lenses are beneficial. The key is choosing based on the visual environment your daily life requires.

Check Your Eye Condition First Through a Detailed Exam

Cataract treatment is not just about comparing costs; accurate diagnosis and determining the safe timing based on your eye condition are the most critical aspects.

Instead of relying on non-professional information or discount-driven choices, you need to decide on the right surgery time and lens based on objective test results.

Since the progression speed and symptoms of cataracts vary per individual, confirming your status accurately through regular eye exams is essential.

We highly recommend understanding your current eye condition through a detailed exam and consulting an experienced ophthalmologist to set the safest treatment course.