
Procedure Overview
- Cataracts are a common eye condition characterised by the clouding of the natural lens inside the eye” – this is due to protein clumping which blocks light from reaching the retina.
Causes, Symptoms & Types
Causes / Risk Factors
- Age is a primary factor; the lens naturally becomes less clear with time.
- Other contributors: diabetes, long-term steroid use, smoking, excessive UV exposure, eye injury or previous eye surgery.
Symptoms / Lifestyle Impact
- Early symptoms of cataract: blurry or cloudy vision (like looking through frosted glass), difficulty in low-light, glare/halos around lights, faded/yellowed colours.
- As cataract progresses: more difficulty with driving (especially night), reading, computer/phone use, recognising faces; increased risk of falls due to reduced contrast/depth perception.
Types of Cataracts
- Nuclear sclerotic:central nucleus of lens; causes gradual yellowing/browning of vision; may increase myopia.
- Cortical: white opacities in outer lens (cortex) appearing as spoke-like; problems with glare, contrast, night vision.
- Posterior subcapsular: back of the lens capsule; faster progression; affects reading vision and causes glare. Common in younger patients, diabetics, steroid-users.
- Congenital: present at birth or childhood (rare) – demands early intervention to avoid long-term impairment.
- Secondary (Posterior capsular opacification – PCO): after surgery, the capsule may become cloudy; treatable by a laser procedure.
Diagnostic Work-Up
- Initial baseline assessment: visual acuity, distance & near vision measurement.
- Slit-lamp microscopy to examine lens, cornea and retina, determine type and location of cataract.
- Pupil dilation drops to allow examination of back of eye (lens capsule, retina) and to screen for co-morbidities.
- Ocular biometry / measurements: pre-surgery lens power calculation (IOL power), corneal measurements, axial length.
- Mr Sira uses advanced technology for the most accurate results and a personalised visual outcome.
- Patients’ lifestyle needs (driving, screen work, hobbies) guide lens-choice and timing of surgery.
Surgical Treatment & Lens Options
When to proceed with surgery
- The only definitive treatment is removal of the cloudy natural lens and replacement with an artificial intraocular lens (IOL).
- Surgery is recommended when cataracts begin to significantly interfere with daily life (driving, reading, screen use) rather than waiting for “the worst”.
Procedure details
- Typical duration: ~10-15 minutes per eye.
- Performed under local anaesthesia (numbing eye-drops and/or injection); patient is awake but comfortable.
- Approach: small incision in cornea → ultrasonic fragmentation (phacoemulsification) of the cloudy lens → removal → insertion of the customised IOL.
Lens (IOL) choices
- Monofocal: one fixed distance (typically distance); reading glasses likely needed.
- Toric: for patients with astigmatism – corrects irregular corneal shape plus cataract.
- Extended Depth of Focus (EDOF): offers a broader range of vision with fewer visual side-effects (halos/glare) than classic multifocal.
Aftercare, Recovery & Outcomes
Immediate recovery
- Day-case procedure – patient goes home same day.
- Some mild sensations: grittiness, watering, mild discomfort in treated eye for a day or two.
- Many patients notice clearer vision within 24-48 hours; full stabilisation may take a few weeks.
Aftercare plan
- Eye-drops: usually antibiotic + anti-inflammatory drops to prevent infection and control inflammation.
- Follow-up consultation: the clinic mentions a review ~2 weeks after surgery to check healing and answer questions.
- Activity advice: Avoid strenuous exercise, heavy lifting, swimming, and rubbing the eye for a short period. Use protective eyewear or shield.
Outcomes & long-term outlook
- Most patients enjoy a significant improvement in vision and quality of life. Colours often appear brighter; night vision and glare reduction typically improve once the cloudy lens is removed.
- The longevity of results is very good; nonetheless age-related changes in vision still may occur, so regular eye checks remain important.
Risks
- Important risks (though rare) include: infection, inflammation, visual disturbances (e.g., halos/glare), posterior capsule rupture, need for further surgery. These are discussed during consultation.
Finance & Practical Considerations
- Private cost starts at around £2,500 per eye though this depends on lens type and any additional treatments.
- Private treatment advantages: short waiting times, advanced lens choices tailored to lifestyle, continuity of care with the same consultant
