Cataract Surgery

What Is Cataract Surgery?

During cataract surgery, the lens of the eye becomes clouded and is surgically extracted, then replaced with an artificial intraocular lens (IOL). This procedure aims to restore the eye’s capacity to focus light properly onto the retina, thereby enhancing vision.

Cataracts often develop with advancing age, although they may also occur earlier as a result of eye injury, underlying conditions such as diabetes, or prolonged use of corticosteroid medications.

What Are the Symptoms of Cataracts?

Cataracts typically develop gradually and may involve:

• Vision that appears blurred or hazy
• Greater discomfort from bright light and glare
• Challenges with seeing in low-light conditions
• A perception that colours have become less vivid
• A need to update glasses prescription on a regular basis

The extent to which symptoms manifest differs among individuals and tends to worsen progressively over an extended period.

When Is Cataract Surgery Needed?

Surgery is not automatically required for every cataract that is identified. The procedure is typically recommended when:

• Routine tasks such as reading, driving or computer work become increasingly difficult
• Sensitivity to glare and night-vision problems become more pronounced
• The cataract interferes with examining another eye condition, such as during retinal assessment

The timing of intervention involves evaluating visual measurements alongside the individual’s functional requirements.

How Is Cataract Surgery Performed?

Phacoemulsification Technique

Phacoemulsification remains the predominant method in contemporary practice. An ultrasonic probe is introduced through a minimal incision to break apart and extract the opaque lens tissue. A foldable artificial intraocular lens is subsequently placed through the same small opening.

Types of Anaesthesia

The procedure typically takes place with topical (applied as drops) or local anaesthesia, allowing the patient to remain conscious while experiencing no discomfort. General anaesthesia is applied only in particular cases.

Intraocular Lens (IOL) Options

• Monofocal lens: Delivers sharp focus at one fixed distance, typically distance vision.
• Multifocal/trifocal lens: Designed to provide functional vision across far, intermediate and near focal points.
• Toric lens: Addresses pre-existing astigmatism correction.

The choice of lens reflects the individual eye’s characteristics, personal lifestyle factors and visual goals.

What Is the Recovery Process Like After Cataract Surgery?

The eye is typically shielded with a protective covering following the procedure. Administering prescribed eye drops as instructed promotes proper healing.

• Mild discomfort, tearing or light sensitivity may occur in the initial post-operative days
• Vision often begins to clarify within the first several days
• Complete visual stabilisation typically requires several weeks
• Scheduled follow-up appointments should be attended as recommended

What Are the Risks and Complications of Cataract Surgery?

Although cataract surgery is routinely performed and regarded as a safe procedure, surgical intervention may involve potential risks:

• Infection (endophthalmitis) — uncommon yet serious
• A temporary increase in eye pressure
• Development of cloudiness in the lens capsule at a later time
• Retinal detachment — infrequently observed, notably in individuals with significant myopia
• Possible displacement of the artificial lens

Should intensifying discomfort, sudden deterioration in vision, eye redness or fluid discharge develop following the operation, prompt consultation with an eye care professional is advisable.

What Should Be Considered in Daily Life After Cataract Surgery?

• Prevent water contact with the eye and avoid touching or pressing on it
• Minimising exposure to dusty or smoke-filled spaces for an initial period is recommended
• Strenuous activities and forward bending may warrant restriction during early healing
• Consistent use of prescribed drops according to the specified regimen is essential
• Regular attendance at scheduled follow-up visits allows ongoing assessment of the healing process

For comprehensive guidance and an individualised assessment regarding cataract surgery, an eye examination is recommended.