It may start out as a pinguecula and can grow large enough to affect vision. Pterygium has a flesh-like coloration that grows over the cornea. It’s made up of fat, protein, or calcium. It often occurs on the side of your eye that’s closest to your nose. Pinguecula looks like a whitish-yellow bump or spot. Ultraviolet (UV) radiation, dry eyes, and exposure to wind or dust cause both of these conditions. The conjunctiva is the clear covering over the white part of your eye. Pinguecula and pterygiumīoth pinguecula and pterygium are growths that occur on your conjunctiva. Some of them can cause opaque, cloudy, or gelatinous looking spots to appear on your cornea.Ĭorneal dystrophies typically progress slowly and can affect both eyes. There are many different types of corneal dystrophies. Corneal dystrophyĬorneal dystrophy is when material builds up on your cornea, affecting your vision. As cataracts worsen, you may notice that the lens of your eye changes to a cloudy whitish or yellowish color.Ī variety of things can cause cataracts, including age, other eye conditions, and underlying health conditions like diabetes. The lens is the part of your eye that focuses light so that the images of what you’re seeing can be projected onto your retina.Ĭataracts often progress slowly, but they can start to affect your vision over time. autoimmune diseases, such as rheumatoid arthritis and lupusĬataracts happen when the lens of your eye gets cloudy.acanthamoeba infection, which is caused by a parasite found in fresh water and soil.fungal infections, such as those caused by fungi like Aspergillus and Candida.viral infections due to HSV, varicella zoster virus, or cytomegalovirus.bacterial infections caused by organisms like Staphylococcus aureus and Pseudomonas aeruginosa.It’s often caused by an infection, although noninfectious causes, like injury or autoimmune disease, are also possible.Ī variety of things can cause a corneal ulcer to form, including: Keratitis is an inflammation of the cornea. have experienced an injury to their eyeĪ condition called keratitis precedes the formation of a corneal ulcer.have been exposed to the herpes simplex virus (HSV). People at risk for corneal ulcers include those who: Corneal ulcers can threaten your vision and are considered to be an eye emergency. A white spot on your cornea can be one of the symptoms. It helps to protect your eye from harmful particles and also plays a role in focusing your vision.Ī corneal ulcer is an open sore that occurs on your cornea. The cornea is the clear outermost part of your eye. Below, we’ll talk about each possible cause in more detail. There are several things that can cause a white spot on your eye.
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