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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Written by Hu Shu Fang

Ophthalmology

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What is good to eat for cataracts?

Research shows that cataracts are related to the lack of certain trace elements, vitamin B, vitamin C, and amino acids. Therefore, we should eat more vegetables, fruits, fish, meat, and animal organs that contain the above substances in our diet. The diet should be light, avoiding greasy, heavily salted foods and strong spices. At the same time, smoking and alcohol should be avoided to cultivate good eating habits and maintain balanced nutrition. Additionally, it is important to rest and boost one's immunity, which are beneficial for preventing cataracts and inhibiting their progression.

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Written by Li Min

Ophthalmology

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Is cataract easy to treat?

If you are diagnosed with cataracts, we generally use surgical methods nowadays. Our surgical approach typically involves cataract phacoemulsification combined with the implantation of an artificial lens. If you have a simple case of cataracts without any other eye diseases—such as glaucoma, diabetic retinopathy, hypertensive retinopathy, or central retinal vein occlusion—the outcome after surgery is generally good. As for the eye drops for treating cataracts advertised on TV, like Sharp Eye Love, their effectiveness is not very certain in our medical practice. Currently, the main method of treating cataracts is still through surgery.

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Written by Li Min

Ophthalmology

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Symptoms of cataracts

The symptoms of cataracts are diverse. Firstly, the most primary manifestation is a decline in vision, which is a painless and gradual decrease. Unlike glaucoma, where the decrease in vision is accompanied by swelling pain in the eyes and even headaches, the vision decrease in cataracts occurs gradually and not suddenly. If the onset is sudden, then it is generally not considered to be caused by cataracts. Besides the painless, gradual decline in vision, some patients may experience a decrease in contrast sensitivity, and changes in refraction. For example, patients who have presbyopia might find that their presbyopia diminishes and their nearsightedness worsens if they develop cataracts, particularly nuclear cataracts. Some people may experience monocular diplopia or polyopia, as well as varying degrees of visual field defects.

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Written by Li Min

Ophthalmology

42sec

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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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Written by Zhou Qing

Ophthalmology

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Early symptoms of cataracts

The early symptoms of cataracts can manifest as day blindness or night blindness. When the cloudiness of the lens originates from the middle of the eye, the strong daylight and illumination can cause the pupil to contract, which then blocks the light from entering the eye, resulting in day blindness. When the cloudiness of the lens is located around the periphery of the eye, the dim light at night cannot reach the peripheral retina, thus causing night blindness. Other early symptoms of cataracts include the following: when the cloudiness of the lens is located at the pupil, patients may see fixed dots or patches of shadow in front of their eyes. However, since cataracts share similar characteristics with floaters, they should be distinguished; the shadows in floaters can move, while the shadows in cataracts are fixed. Varying degrees of blurry vision are also early symptoms of cataracts. Patients may experience gradually increasing blurriness of vision, often perceiving halos around lights or seeing colors of objects as dull and unclear. The early development of cataracts is quite slow and can be determined by the deepest and most obvious part of the lens cloudiness and its development condition.