Understanding cataracts: development, risks of surgery, and behavior after the procedure

The gray cataract – medically called „cataract“ – is one of the most common eye diseases worldwide. Almost every second person develops a lens opacity during their lifetime, which increasingly impairs vision. However, thanks to modern medical procedures, cataract surgery is a very safe and successful intervention that helps millions of patients regain sharp vision each year.

In this article, we would like to provide you with the most important information from three central perspectives:

  1. How does the gray cataract develop and how is the surgery performed?
  2. What risks are associated with the procedure?
  3. How should one behave after the surgery to support optimal healing?

1. Development of the gray cataract and course of the surgery

What is the gray cataract?

The gray cataract is an opacity of the eye lens that progresses gradually. Initially, those affected often only notice a slight blurriness, a feeling of „poor light,“ or increased glare at night. As it progresses, vision appears as if a gray veil is lying in front of the eye.

The causes are diverse, but most commonly age-related. With increasing age, the proteins in the lens change, causing it to lose its transparency. Diseases such as diabetes, strong UV radiation, or the long-term use of certain medications (e.g., corticosteroids) can also promote the development of a cataract.

Symptoms at a glance:

  • Blurred vision
  • Increased sensitivity to glare (e.g., while driving)
  • Poorer color vision
  • Frequent changes in glasses prescription

Course of the surgery

Cataract surgery is now one of the most commonly performed surgical procedures worldwide – and at the same time one of the safest. The procedure usually takes only 15–20 minutes per eye.

Preparation:

  • Comprehensive pre-examination and determination of lens strength
  • Discussion of possible risks and procedure
  • Administration of pupil-dilating drops

The procedure:

  • Local anesthesia (usually eye drops, rarely injection)
  • Opening of the lens capsule through a tiny incision
  • Fragmentation of the cloudy lens using ultrasound (phacoemulsification)
  • Suction of the lens remnants
  • Implantation of a clear artificial lens (intraocular lens, IOL)

After the operation:

The eye is protected with a bandage. Vision improves significantly after a short time, with the final result usually achieved after a few weeks.

2. Possible risks

Although cataract surgery is considered very safe, any surgical procedure carries certain risks. It is important to know which complaints are normal and when to seek medical attention immediately.

Normal complaints in the first few days:

  • Slight foreign body sensation
  • Watery eyes
  • Temporary light sensitivity
  • Redness of the eye

These symptoms are usually harmless and resolve on their own after a few days.

Possible complications (rare):

  • Infections (endophthalmitis)
  • Retinal detachment
  • Increased intraocular pressure
  • After cataract (secondary cataract)

Patients should contact the practice immediately if the following symptoms occur:

  • Sudden, severe pain
  • Sudden deterioration of vision
  • Severe redness or pus formation
  • Flashes, shadows, or „soot rain“ in the field of vision

The information about risks is not meant to instill fear, but to provide affected individuals with security and enable a quick response in case of emergency.

3. Behavior after the operation

Proper aftercare is crucial for a quick recovery and long-term good vision.

Important rules of conduct:

  • Consistently use eye drops: The prescribed drops have anti-inflammatory effects and promote healing.
  • Physical rest: Avoid heavy lifting, bending down, or physical exertion in the first few days.
  • Observe hygiene: Do not rub the eye, and be careful while showering to ensure that no shampoo or soapy water gets into the eye.
  • Wear sunglasses: They protect against UV radiation and reduce light sensitivity.
  • Attend follow-up appointments: These are important to monitor the healing process.

Healing process

In the first few days, vision may still be blurry. However, most patients achieve stable, clear vision within a few weeks. In many cases, only a light pair of glasses for close-up is needed afterwards – some even manage without any visual aids at all.

Cataract surgery is a routine procedure that restores or preserves the eyesight of millions of people each year. Thorough preparation, awareness of potential risks, and consistent aftercare are crucial for success.

With modern surgery and the right behavioral measures, patients can soon enjoy undisturbed quality of life again.

Important information

Dear patients,

our practice will be closed from 28.07.2025 to and including 03.08.2025 closed.
From 04.08.2025 we will be back to assist you as usual.

In urgent emergencies, please contact the medical emergency service at the phone number:
0800 33 66 55

You can schedule appointments online or through our website at any time.

We thank you for your understanding!
Your practice team