[Clinical Edge] Can You Have Cataract Surgery on Just One Eye First?

 "I have cataracts in both eyes. Can I have surgery on only one eye first?"

Yes. In fact, this is how cataract surgery is most commonly performed.

For most patients, cataract surgery is done one eye at a time. After the first eye has healed and the vision is stable, the second eye is usually scheduled.

Why Is Cataract Surgery Usually Performed One Eye at a Time?

Cataract surgery is one of the safest and most successful operations in medicine. However, like any surgical procedure, it still carries small risks.

Performing surgery one eye at a time allows your ophthalmologist to:

  • Evaluate how the first eye heals
  • Confirm the visual outcome
  • Minimize the chance of both eyes being affected by a rare complication
  • Fine-tune the intraocular lens (IOL) power for the second eye if necessary

For these reasons, staged surgery remains the standard approach in many eye centers.

When Is the Second Eye Usually Operated On?

There is no single "correct" waiting period.

The timing depends on several factors, including:

  • Recovery of the first eye
  • How much the second cataract affects daily life
  • Your visual needs
  • Work, driving, and lifestyle requirements

Many patients have the second eye treated within days to several weeks, while others may wait months if the cataract in the other eye is still mild.

Will It Feel Uncomfortable After Only One Eye Is Treated?

Sometimes, yes.

If there is a significant difference in prescription between the two eyes, you may notice:

  • Blurred vision in one eye
  • Difficulty judging depth or distance
  • Dizziness or imbalance
  • Trouble adapting to your glasses
  • One eye seeing clearly while the other remains cloudy

This difference is called anisometropia.

If the prescription difference is large enough to interfere with daily activities, your surgeon may recommend scheduling the second eye sooner.

Can Both Eyes Be Operated On the Same Day?

Yes, in selected patients.

Some ophthalmologists perform Immediate Sequential Bilateral Cataract Surgery (ISBCS), where both eyes are operated on during the same visit.

This approach follows strict safety protocols, including completely separate sterile instruments, medications, and surgical preparation for each eye.

Although ISBCS is becoming more common in some countries and healthcare systems, it is not appropriate for every patient, and many surgeons continue to prefer staged surgery.

Is It Okay to Delay Surgery on the Second Eye?

Yes.

If the cataract in the second eye is not causing significant visual problems, there is usually no need to rush.

However, surgery may be worth considering sooner if you experience:

  • Difficulty driving
  • Problems reading or using a computer
  • Significant imbalance between the two eyes
  • Reduced quality of daily life

Ultimately, the best timing for cataract surgery depends less on how the cataract looks and more on how much it affects your vision and daily activities.

Disclaimer: This article is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

댓글

댓글 쓰기

이 블로그의 인기 게시물

[Investment Philosophy] Is It Already Too Late to Invest After Good News?

 Every investor has experienced this moment at least once. "A company just announced great news. Should I buy the stock now?" The short answer is: In many cases, the market may have already priced it in. Why Does the Market Move Before the News? Stock prices often appear to move because of news. However, in reality, markets frequently move before the news becomes public. Expectations about: Improving earnings New product launches Industry growth Technological breakthroughs Business strategy changes are often reflected in stock prices ahead of official announcements. By the time a headline appears on financial websites saying a stock has "surged," much of the expected information may already be included in the price. Why Can a Stock Fall Despite Positive News? Many investors have experienced this confusing situation: A company announces excellent news. The investor buys the stock. The stock price falls shortly afterward. Why does this happen? It is not necessarily b...
자세한 내용 보기

[Clinical Edge] My New Glasses Make Me Dizzy — Should I Keep Wearing Them?

 Feeling dizzy, uncomfortable, or slightly nauseated after getting new glasses is not unusual. Especially when your prescription changes significantly or your astigmatism correction is different, your eyes and brain may need time to adjust to the new visual information. However, not every uncomfortable feeling is simply an adjustment period. How long does it take to adjust to new glasses? For many people, adaptation takes: A few days Up to 1–2 weeks During this period, it may help to wear your new glasses consistently rather than switching back and forth between old and new glasses. If the prescription change is large, you may start by wearing them for shorter periods and gradually increase the wearing time. When should you have your glasses checked again? You should consider returning to your optician or eye doctor if: Dizziness continues for more than 2 weeks Straight lines or objects look tilted One eye feels significantly different from the other You develop headaches or severe...
자세한 내용 보기

[Clinical Edge] Should You Wear Your Glasses During an Amsler Grid Test?

  Yes—if you normally wear reading glasses or near-vision glasses, you should wear them during an Amsler grid test. The goal of the Amsler grid is to detect changes in your central vision , not blurry vision caused by an uncorrected prescription. Performing the test under your usual reading conditions helps you obtain the most reliable results. Why Should You Wear Your Reading Glasses? An Amsler grid is a simple tool used to monitor the health of the macula, the central part of the retina responsible for sharp vision. It helps detect changes such as: Wavy or distorted lines (metamorphopsia) Missing or blurred areas in central vision New blind spots If your near vision is naturally blurry because you are not wearing the glasses you normally use for reading, it can become difficult to tell whether you're seeing a true retinal change or simply an out-of-focus image. For the most accurate results, perform the test the same way you normally read a book or use your smartphone. What If Y...
자세한 내용 보기