Feb 06, 2023

What you need to know about Cataracts

Cataracts are among the most frequently diagnosed eye conditions at Moorfields Eye Hospital Dubai, and one of the leading causes of progressive vision loss in the ageing population. While they are a natural part of the ageing process and, in most cases, highly treatable, many patients have questions about what cataracts mean for their vision and what treatment involves.

Cataracts typically begin with subtle changes such as mild blurring, heightened sensitivity to glare during night driving, or a gradual reduction in colour perception. As the condition progresses, individuals may experience increasing difficulty with routine visual tasks, including reading, driving, facial recognition, and using digital screens.

A clearer understanding of what Cataracts are, how they develop, and the treatment options available can help you take a more informed and confident approach to managing your eye health.

What are Cataracts?

The human eye contains a naturally clear, flexible structure known as the lens. This lens is responsible for focusing light onto the retina, allowing the brain to produce sharp, detailed images. In a healthy eye, the lens allows light to pass through without obstruction, but when a Cataract develops, the lens gradually becomes cloudy or opaque, preventing light from passing through clearly.

This reduces the amount of light reaching the retina, resulting in vision that may appear blurred, hazy, or dim, often compared to looking through a fogged or scratched window. As this is typically a gradual process occurring over months or years, many individuals may not recognise the early signs until the cataract begins to noticeably affect their daily vision.

What are the causes of Cataracts?

The most common cause of Cataracts is ageing. Over time, the proteins within the lens begin to break down and clump together, reducing the lens’s clarity. This process is a natural part of ageing and affects most people to some degree.

Other factors that can contribute to Cataract development include:

Diabetes (prevalent in the UAE)
Prolonged exposure to ultraviolet (UV) light
Smoking
Certain medications, such as long-term steroid use
Eye injuries or trauma
Previous eye surgery

What are the types of Cataracts?

While age-related cataracts are the most common, Cataracts can develop for different reasons and at different stages of life:

Age-related Cataracts: These develop gradually as part of the natural ageing process and are the most frequently diagnosed type in Dubai and the wider UAE.
Congenital Cataracts: Present at birth or developing in early childhood, often due to genetic factors or infections during pregnancy.
Traumatic Cataracts: Caused by eye injury, which may lead to cataract formation immediately or years later.
Secondary Cataracts: Develop as a result of other eye conditions, systemic diseases, or medications.

Regardless of the type, the impact on vision is similar, and management depends on how much the Cataract interferes with daily life.

What are the symptoms of Cataracts?

Cataracts develop gradually, and their symptoms may include:

Blurred or cloudy vision
Increased sensitivity to glare, especially from headlights or bright sunlight
Halos around lights
Difficulty seeing at night
Colours appearing faded or yellowed
Double vision in one eye
Frequent changes in glasses or contact lens prescriptions

As cataracts progress, these symptoms become more noticeable and can significantly affect quality of life, particularly for those who drive frequently or use digital screens for work in a fast-paced city like Dubai.

How are Cataracts diagnosed?

Cataracts are diagnosed through a comprehensive eye examination. This includes:

Assessment of visual acuity
Examination of the lens using a slit lamp microscope
Evaluation of the retina and optic nerve
Measurement of eye pressure
Detailed discussion of symptoms and daily visual needs

Not all vision changes are caused by cataracts, which is why a thorough assessment is essential before deciding on treatment.

Why does early diagnosis of Cataract matter?

While Cataracts are not a medical emergency, early assessment plays an important role in achieving the best possible outcome. Without timely evaluation, Cataracts can progress to a stage where they significantly impair daily activities and reduce quality of life.

An early consultation with a specialised ophthalmologist allows for accurate diagnosis and helps distinguish cataracts from other eye conditions that may present with similar symptoms, such as glaucoma or age-related macular degeneration. It also enables your specialist to monitor the rate of progression and recommend the most appropriate time for surgical intervention, ensuring surgery is performed when it is most likely to deliver optimal results.

In many cases, patients who seek assessment early benefit from a wider range of lens options and a smoother, more predictable recovery

When is treatment for Cataract recommended?

Cataracts are not treated based on how they look, but on how they affect vision and daily activities. Surgery is usually recommended when Cataracts begin to interfere with tasks such as driving, reading, working, or maintaining independence.

There is no benefit in waiting until a cataract becomes “fully mature.” Modern Cataract surgery in Dubai is typically performed when symptoms become bothersome and impact quality of life.

How are Cataracts treated?

Cataract surgery is one of the most commonly performed and successful surgical procedures worldwide. Studies cited by the National Institutes of Health (NIH) indicate that over 95% of patients experience improved vision after cataract surgery, provided there are no other underlying eye conditions.

The surgery involves removing the cloudy natural lens and replacing it with a clear artificial lens, known as an intraocular lens (IOL). This lens remains permanently in place and requires no maintenance. There are several types of IOLs available, and the most suitable option will depend on your lifestyle, visual needs, and your surgeon’s recommendation. These include monofocal lenses, which provide clear vision at a single distance (usually far); multifocal lenses, which offer a range of focus for both near and distance vision; and toric lenses, which are specifically designed to correct pre-existing astigmatism. Your ophthalmologist will discuss which option is best suited to your individual needs.

At Moorfields Eye Hospital Dubai, Cataract surgical outcomes, including post-operative visual acuity, complication rates, and patient satisfaction, consistently meet or exceed international benchmarks. These results are published transparently on our satisfaction rates page.

What to expect after Cataract surgery?

Most patients notice improved vision within days of surgery, with gradual refinement over the following weeks. Eye drops are prescribed for a short period to reduce inflammation and prevent infection.

During recovery, patients are advised to:

Avoid rubbing the eyes
Use prescribed eye drops as directed
Wear sunglasses outdoors to protect from bright light
Avoid heavy lifting or strenuous activity for a short period

At Moorfields Eye Hospital Dubai, patients receive personalised post-operative care and follow-up to ensure smooth recovery and optimal visual outcomes.

Summary

Cataracts are a common age-related eye condition that can gradually affect vision and quality of life. While Cataracts cannot be reversed with medication, surgery is a safe and effective treatment that restores clarity and visual function for millions of people each year.

If you notice changes in your vision, a comprehensive eye examination with a Cataract Specialist in Dubai is the first step toward understanding the cause and exploring appropriate treatment options.

Frequently Asked Questions (FAQs)

Are Cataracts preventable?

Cataracts are largely a natural part of ageing and cannot be completely prevented. However, certain lifestyle choices may help slow their development or progression. Protecting your eyes from excessive ultraviolet (UV) exposure by wearing sunglasses, maintaining good control of conditions such as diabetes, avoiding smoking, and following a healthy diet may all support long-term eye health. Regular eye examinations with a specialist in Cataract surgery are also important, as they allow Cataracts to be detected and monitored early.

Can Cataracts affect both eyes at the same time?

Yes, Cataracts commonly develop in both eyes. However, they often progress at different rates, meaning one eye may be affected earlier or more severely than the other. This difference can sometimes make the vision imbalance more noticeable. The Cataract specialist will assess each eye individually and recommend treatment based on how each eye affects daily activities and vision.

Is Cataract surgery painful?

Cataract surgery is generally not painful. It is usually performed under local anaesthesia, which numbs the eye and keeps you comfortable throughout the procedure. You may feel mild pressure or awareness, but pain is uncommon. After surgery, some patients experience mild irritation or grittiness, which typically settles within a short period and is well managed with prescribed eye drops.

How long does Cataract surgery recovery take?

Recovery after Cataract surgery is usually straightforward. Many people notice clearer vision within a few days, although vision may continue to improve gradually over several weeks. Most daily activities can be resumed relatively quickly, with certain precautions advised during the early healing period. Our Cataract specialists in Dubai will guide you and provide follow-up care to support a smooth recovery.

Will I still need glasses after Cataract surgery?

This depends on the type of intraocular lens (IOL) implanted and your individual visual needs. Some lenses are designed to correct distance vision, while others may reduce the need for glasses for both near and distance tasks. Even with advanced lens options, some people may still require glasses for specific activities, such as reading or driving at night. Your surgeon will discuss suitable lens choices before surgery.

Can Cataracts return after surgery?

Once a cataract has been removed, it cannot return. However, some patients may develop clouding of the thin membrane that holds the artificial lens in place, a condition sometimes referred to as “secondary cataract.” This is not a recurrence of the condition and can be easily treated with a quick, painless laser procedure for Cataract that restores clear vision.

Is Cataract surgery safe for older adults?

Yes. Cataract surgery is commonly performed in older adults and is considered safe and effective. Age alone is not a limiting factor. What matters more is overall health, eye condition, and suitability for surgery. Many older patients experience significant improvements in vision, independence, and quality of life following surgery by a Cataract specialist.

Can Cataracts cause complete blindness if untreated?

If Cataracts are left untreated for a long time, they can lead to severe vision loss and, in rare cases, functional blindness. However, early detection and timely treatment can help prevent Cataracts from progressing to a stage where they significantly limit vision or daily function.

Can Cataracts affect vision permanently?

Cataracts do not damage the eye itself, and vision loss caused by cataracts is reversible. However, if left untreated, cataracts can eventually lead to significant vision loss, affecting quality of life and safety.