Cataracts usually cause gradual changes in vision as the natural lens becomes cloudy. Common signs include blurred or cloudy vision, glare, halos, difficulty seeing at night, faded colors, double vision, and frequent prescription changes. An eye examination is needed to confirm whether these changes are caused by cataract or another eye condition.
Last updated: 4/10/2026
Cataract symptoms usually develop gradually as the eye’s natural lens becomes cloudy. Common changes include blurred or cloudy vision, glare, halos around lights, difficulty seeing at night, faded colors, double vision in one eye, and frequent changes in glasses prescription. Early symptoms may be mild or absent, and one eye can be more affected than the other.
Because these vision changes can also occur with other eye conditions, symptoms alone cannot confirm a cataract. An ophthalmologist can diagnose cataract through an eye examination that may include visual acuity testing, a slit-lamp examination, and a dilated eye exam.
If you want to understand what cataract assessment and treatment may involve, visit Magrabi Health’s Cataract service to learn about examination, monitoring, surgery, and lens options.
Cataract signs are vision changes caused by progressive lens clouding. The National Eye Institute explains that a mild cataract may cause no noticeable symptoms at first, but as the clouded lens becomes more significant, vision may become blurry, hazy, less colorful, or more sensitive to bright light.
People searching for eye cataract symptoms or symptoms of cataract in the eye are often describing changes in visual clarity rather than pain or irritation. Cataracts usually develop slowly, so the change may be easy to overlook until reading, driving, or recognizing detail becomes more difficult.
The most common cataract signs involve gradual changes in the quality of vision. Cataract signs and symptoms can vary between people and may become more noticeable under low light, while driving, or when looking toward bright lights.
Blurred vision is one of the most common symptoms of cataract. Objects may look less sharp, and fine details can become more difficult to see.
Cloudy vision may feel as if you are looking through a fogged or dirty window. Some people describe hazy vision or reduced visual clarity instead of obvious blur. These cloudy vision symptoms can gradually interfere with reading, television, computer work, or recognizing faces.
A clouded lens can scatter incoming light instead of focusing it clearly. This may increase glare from sunlight, indoor lighting, or vehicle headlights.
Light sensitivity may become more noticeable outdoors or while driving after dark. Bright lights may feel uncomfortable even when the eye itself is not painful.
Some people begin to see halos around lights, especially headlights, streetlights, or bright lamps at night. Halos can make night driving more difficult and may occur together with glare.
Halos are not specific to cataracts, so an eye examination is important if they are new, persistent, or affecting safe driving.
Difficulty seeing in dim conditions is another common cataract vision change. You may need brighter light for reading, struggle to see road markings at night, or find it harder to adjust between bright and dark environments.
Night vision problems can become important even when daytime visual acuity still seems acceptable.
Cataracts can make colors appear less bright or less distinct. White objects may seem yellowish, and color contrast may gradually decrease.
Because the change is often slow, some people only notice how faded colors had become after the cataract is treated.
Cataracts can sometimes cause double vision or multiple images in one eye. This can happen because lens clouding changes the way light passes through the eye.
Double vision has several possible causes. If it develops suddenly or affects both eyes together, it should not automatically be assumed to be a cataract.
Frequent prescription changes in glasses or contact lenses can be one of the first signs of cataracts. A prescription that worked recently may stop giving the same clarity as the lens continues to change.
Updated glasses can sometimes improve vision temporarily in early-stage cataracts, but repeated changes may suggest that the underlying lens clouding is progressing.
Cataract vision changes usually progress gradually rather than appearing overnight. As lens clouding becomes denser or affects a more visually important part of the lens, light is scattered and less sharply focused on the retina.
Cataract vision may therefore change from mild blur or glare to more noticeable difficulty with reading, driving, recognizing faces, or performing detailed work. The speed of progression varies, so the amount of lens clouding does not always match how much a person feels affected in daily life.
The NHS notes that symptoms usually develop slowly and that both eyes are often affected, although the symptoms can be different in each eye.
Yes. Cataracts can develop in one eye or both eyes. Even when both eyes are affected, one eye may have more advanced lens clouding and more noticeable vision changes than the other.
This difference can make symptoms seem one-sided. A person may notice:
Blurry or cloudy vision mainly in one eye.
More glare or halos from one side.
Greater difficulty reading with one eye.
A noticeable difference in color brightness between the two eyes.
One eye needing more frequent prescription changes.
In some cases, the brain may compensate for the weaker eye, so the difference is not immediately obvious. Covering one eye at a time may make the contrast in visual clarity easier to notice.
A new or increasing difference between the eyes should still be assessed. Cataracts are only one possible explanation for reduced vision in one eye. An ophthalmologist can examine the lens and also check the cornea, retina, optic nerve, and other eye structures before confirming the cause.
Symptoms can suggest a cataract, but diagnosis requires an eye examination. Magrabi Health doctors emphasize that symptoms alone cannot confirm a cataract. A complete eye examination helps assess lens clouding and determine whether another eye condition may also be affecting vision.
The signs and symptoms of cataract can overlap with other eye conditions, so the examination also checks for other possible causes of reduced vision.
Assessment may include:
Visual acuity testing to measure how clearly each eye can see.
Refraction to check whether a change in glasses prescription improves vision.
Slit-lamp examination to inspect the cornea, lens, and front structures of the eye.
Dilated eye exam to assess the lens and examine the retina and optic nerve.
Additional testing when another eye condition may also be affecting vision.
The examination also helps determine whether reduced visual clarity comes from cataract alone or from another condition that may need separate care.
If the vision changes described here are affecting your routine, contact Magrabi Health on WhatsApp to ask whether a cataract assessment may be an appropriate next step and which UAE branch may suit your location.
A cataract diagnosis does not always mean surgery is needed immediately. The next step depends on how much the cataract is affecting vision, daily activities, and overall quality of life.
If vision remains useful and daily tasks are not significantly affected, the ophthalmologist may recommend:
Monitoring the cataract with regular eye examinations.
Updating the glasses prescription when this still improves vision.
Using brighter lighting for reading and close work.
Reducing glare where possible, especially during night driving.
Reviewing any other eye conditions that may also be affecting visual clarity.
The decision to consider cataract surgery is usually based on how much the lens clouding interferes with everyday function rather than on the presence of a cataract alone. Surgery may be discussed when reduced vision begins to affect activities such as reading, driving, working, recognizing faces, or moving safely and independently.
During cataract surgery, the cloudy natural lens is removed and replaced with an artificial intraocular lens, or IOL. Before surgery, the ophthalmologist evaluates the eye and discusses the type of lens that may be appropriate based on visual needs, eye measurements, and overall eye health.
The timing of surgery can therefore differ from one person to another. Some people may continue with monitoring for a period of time, while others may need treatment sooner because cataract vision changes are interfering more significantly with daily life.
You can also read Magrabi Health’s guide to cataract treatment options to understand the available treatment pathways and when surgery may be considered.
Not every cataract can be prevented, especially age-related cataract. However, practical eye-health measures may reduce avoidable risk factors and support long-term vision.
Helpful steps include:
Wear sunglasses that provide suitable UV protection.
Avoid smoking.
Manage diabetes and other long-term conditions with appropriate medical follow-up.
Use protective eyewear when there is a risk of eye injury.
Attend regular eye examinations, especially if you notice vision changes.
Discuss long-term steroid use with the prescribing doctor rather than stopping medication on your own.
These measures do not guarantee that cataracts will not develop, but they support overall eye health and may help identify changes earlier.
Arrange an eye examination if gradual vision changes begin to interfere with reading, driving, work, or other daily activities. Cataract signs often progress slowly, so it is important to notice how vision is changing over time rather than waiting for a major loss of clarity.
You should consider an eye assessment if you notice:
Gradually increasing blurry or cloudy vision.
More glare from sunlight, lamps, or vehicle headlights.
Halos around lights, especially at night.
Increasing difficulty with night driving.
Colors appearing faded or less vivid.
Frequent changes in glasses prescription.
One eye becomes noticeably weaker than the other.
New glasses no longer improve vision as expected.
Vision changes making reading, detailed work, or everyday tasks more difficult.
An ophthalmologist can determine whether these changes are caused by cataract or another eye condition. The examination can also show how much lens clouding is present and whether it is affecting visual acuity or daily function.
Cataracts usually progress gradually. A sudden major change in vision, sudden loss of vision, new flashes or floaters, or severe eye pain should be assessed promptly rather than assumed to be cataract.
If these signs of cataract are affecting your daily activities or you need a clear diagnosis, contac us through a phone call or use the booking form to arrange an eye assessment with an ophthalmologist.
Cataract symptoms usually develop slowly, and the first symptoms may be easy to miss. Blurred or cloudy vision, glare, halos, night vision difficulty, faded colors, double vision, and frequent prescription changes are common warning signs. Because the same changes can occur with other eye conditions, diagnosis should be based on a complete eye examination. Magrabi Health recommends arranging an assessment when vision changes become persistent or begin to affect everyday activities.
Medically reviewed by Magrabi Health Specialized Doctors.
Medical Disclaimer: The information in this article is for health education purposes only and does not replace a visit to a doctor or consultation with a qualified specialist. Magrabi Health doctors recommend seeking medical evaluation for an accurate diagnosis and appropriate treatment plan.
National Eye Institute – Cataracts
NHS – Cataracts in adults
UAE National Health Report – Ministry of Health and Prevention
