6 Warning Signs You Might Have Eye Cataracts

Eye cataracts, an eye condition that affects about one in six Americans past the age of 40, is one of the most common eye disorders in the world. Cataracts are a cloudy or opaque area on the crystalline lens of the eye that develops over time. Despite being so common, most cataract cases aren’t caught until they’ve progressed because they’re painless and the loss of sight is subtle.

Either both or one eyes can suffer: To diagnose the condition, optometrists look for a yellowing in the lens of the eye and an opacity in the back capsule.

Check out the warning signs of cataracts:

Cloudy or blurry vision

With cataracts, you might have a localized blurred spot or a generalized decrease in vision; either way, impaired eyesight will likely be the first thing you notice. A cataract will start out small and initially have very little effect on your vision, though you may notice the world beginning to resemble an impressionist painting or a cloudy piece of glass.

“Blurry vision is the number one symptom of cataracts,” says Joseph Fishkin, MD, comprehensive ophthalmologist and cataract surgeon. “Blurred vision can be caused by many different problems but, as cataracts develop, vision gets more blurry over time. The natural lens in our eye helps light focus properly, and this normally clear lens slowly becomes more cloudy.”

Because this is difficult to differentiate from other diseases such as glaucoma, it’s important to consult your optometrist as often as possible if you notice these changes.

Decreased color perception

Due to the clouding of the eye, colors can become less vibrant and increasingly muddy over time. “Real” whites will appear much more yellow in comparison. Because this occurs at such a slow and gradual pace, most patients won’t notice color changes until after surgery is done to remove one or both cataracts.

“When people develop cataracts, there is a marked fading or yellowing of colors, which is sometimes noticed,” says Michael Nordlund, MD of Cincinnati Eye Institute. “One of the most prominent improvements in vision after cataract surgery is a marked improvement in color vision. Patients often comment following surgery that they don’t ever remember seeing such vibrant colors. In fact, we are just restoring the color vision of their youth.”

Sensitivity to light and glare

You may notice that what used to be a comfortable level of light is now too bothersome and making you cringe. Lamps, headlights, and the sun will become your biggest nemesis, and the light emanating from them will fan out like a halo. Because cataracts scatter much of the light entering the eye, optometrists report that this symptom will be very common.

“As a cataract develops, light does not have a clear path to the back of the eye, and it becomes increasingly difficult for a person to see clearly,” James Schumer, MD, ophthalmologist, says.

Difficulty driving at night

Because cataracts make it difficult to balance the contrast between the darkness and bright lights from oncoming traffic, most affected people will experience trouble driving at night. If blaring headlights and luminous streetlamps are giving you a headache, you may want to get checked out, notes Shoshana Ungerleider, MD, internal medicine physician at Sutter Health’s California Pacific Medical Center.

“Patients often complain of a problem with night driving and reading road signs. If you notice these and/or frequent changes in your eyeglass or contact lens prescription, make an appointment to see your eye doctor for an exam.”

Trouble reading fine print

According to All About Vision, the lens inside the eye is comparable to a camera lens, focusing light onto the retina and letting us see things clearly both up close and far away. This lens is mostly comprised of water and protein, and the protein is arranged in such a way that allows light to pass through it.

Because cataracts cause the protein to clump together, small print may become difficult to discern in the eye’s refractive mirror. Scott MacRae, MD, ophthalmologist and chairman of the Public Health Committee with the American Academy of Ophthalmology, cites blurry or waxy reading and distance vision as one of the blaring signs of cataracts. “Things start to look like there is a film in front of your eyes. The sharpness is gone.”

Double vision

Diplopia, more commonly known as double vision, can be another silent sign of cataracts. However, this is not to mistaken as the diplopia that comes from improper alignment of the eyes. The double vision, in this case, will occur even when looking through one eye.

“At first, the cataract may cause cloudiness in one’s vision that will affect only a small part of the eye’s lens and may not be so noticeable,” warns Dean Hart, OD, optometrist and professor at Columbia University’s School of Medicine. “But as the cataract grows in size, it will cloud more of the lens and will also distort the light passing through it. As a result, you may get double vision in a single eye if only that eye has the cataract.”

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