Is vitreous opacity cataract?

Written by Deng Jiang Tao

Ophthalmology

Updated on September 18, 2024

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Vitreous opacity and cataract are two different concepts; they are two different diseases. Vitreous opacity occurs when the collagen in the vitreous cavity slowly emulsifies into a turbidity. A cataract occurs when the lens inside the human eye becomes cloudy, forming a cataract. These are two completely different diseases, and their treatment methods are generally different as well. Cataract treatment primarily involves surgery, whereas vitreous opacity, including floaters, does not require surgical treatment.

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Postoperative complications of cataract surgery

Complications after cataract surgery are relatively common and include the following types: First, incision leakage, leading to a shallow anterior chamber; Second, pupil block; Third, damage to the corneal endothelium, causing persistent corneal edema, and even bullous keratopathy; Fourth, anterior chamber hemorrhage; Fifth, epithelial implantation in the anterior chamber; Sixth, postoperative uveitis; Seventh, increased intraocular pressure; Eighth, abnormal positioning or dislocation of the intraocular lens; Ninth, macular edema, and retinal detachment can also occur.

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Does cataract spread by contagion?

Firstly, cataracts are the clouding of the lens inside our eyes, known as cataracts. Cataracts are not contagious. Based on the cause, cataracts can be classified into age-related cataracts (previously referred to as senile cataracts), metabolic cataracts, secondary cataracts, traumatic cataracts, and radiation cataracts. The most common type in clinical settings is age-related cataracts, which are commonly seen in middle-aged and elderly individuals over fifty years old. Its clinical presentation is a painless, gradual decline in vision. Currently, the only effective treatment is surgical intervention.

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Cataracts are a condition of the eye.

Cataracts are degenerative changes causing a decline in optical quality, which are due to the decreased transparency or color change of a structure in the eye called the lens. The pathogenesis of cataracts is quite complex, resulting from the long-term combined effects of various internal and external factors on the lens. The lens is situated in the fluid environment of the eye, and any factor impacting this environment, such as aging, genetics, metabolic abnormalities, trauma, radiation, poisoning, localized nutritional disorders, as well as certain systemic metabolic or immune diseases, can directly or indirectly damage the tissue structure of the lens, interfere with its normal metabolism, and cause the lens to become opaque.

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Does cataract cause headache?

The main symptoms of cataracts include a decline in vision, with both near and far objects appearing unclear, and blurry vision. There is no significant eye pain or headaches, nor does it cause redness in the eyes. If headaches do occur, it is important to investigate the cause, such as checking if there is an increase in eye pressure or if the headache is caused by glaucoma, and to treat according to the specific cause. However, in the later stages or over-mature stage of cataracts, the lens may dissolve, which can potentially lead to phacolytic glaucoma, but this condition is very rare.

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What are the early symptoms of cataract?

Early symptoms of cataracts are not obvious in some patients, while others may experience mild blurriness of vision. As the lens becomes cloudier, the blurriness will gradually worsen, and symptoms such as nearsightedness, glare, and double vision may also appear. In advanced stages, some may develop glaucoma, leading to symptoms like eye pain, headache, nausea, and vomiting, and in severe cases, it can cause blindness. Cataracts are a common and prevalent eye disease and are the leading cause of blindness worldwide. The lens, an important optical component of the human eye, is normally transparent. Cataracts can form due to various reasons leading to protein degeneration in the lens, causing it to become cloudy and result in various degrees of vision loss. It is recommended that patients with cataracts regularly visit ophthalmologists and consider cataract removal surgery if necessary.