What tests should be done at the hospital for floaters?

Written by Li Zhen Dong
Ophthalmology
Updated on September 09, 2024
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To diagnose floaters, hospitals primarily use ultrasound B-scans, which are the most objective and non-invasive examinations, providing insights into the condition of the vitreous body. Floaters can be either physiological or pathological. Physiological floaters generally do not affect vision, and addressing them usually involves rest and proper eye care. If needed, treatment options may include Amniotic Iodine eye drops or oral intake of Lecithin Iodine complexes. However, if the floaters are pathological, proactive eye examinations and rigorous treatment are necessary. In severe cases, surgical intervention might be considered to preserve vision, as the causes of pathological vitreous opacities are diverse.

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Written by Li Zhen Dong
Ophthalmology
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Is it effective to use glasses for floaters?

Floater syndrome generally does not require glasses, and wearing glasses has no effect. Although floater syndrome involves the refractive media, it does not cause changes in vision. Changes in vision are mainly due to the curvature of the cornea, the condition of the lens, the length of the eye axis, and retinal diseases. Floater syndrome can be physiological or pathological. Physiological floaters generally do not affect vision; simply taking rest, reducing close-up tasks, or using some peptide eye drops can completely improve the condition. If it is pathological floater syndrome, one should visit the ophthalmology department for further examination and active treatment.

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Written by Li Zhen Dong
Ophthalmology
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Is floater related to wearing colored contact lenses?

Floaters are not related to wearing cosmetic contact lenses at all. Floaters are due to vitreous opacity, which can be categorized into physiological and pathological vitreous opacity. Physiological vitreous opacity generally does not affect vision, whereas pathological vitreous opacity significantly impacts vision and requires further examination by an ophthalmologist. Additionally, cosmetic contact lenses are worn on the cornea and mainly cause corneal damage, such as keratitis and conjunctivitis. Therefore, when wearing cosmetic contact lenses, one should handle them correctly, gently, and ensure the lenses are regularly cleaned and soaked as per guidelines.

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Written by Jiang Wen Min
Ophthalmology
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What causes floaters in the eyes and what should be done about them?

The occurrence of floaters indicates vitreous opacification, where the vitreous body is affected by the pathological changes of the surrounding tissues, such as degeneration, bleeding, and exudation. This is known as vitreous opacification, also referred to as floaters, characterized by vitreous clouding, liquefaction, and the formation and contraction of fibrous membranes. In general, floaters in elderly people are mostly related to age-associated vitreous liquefaction. For myopic patients, particularly those with high myopia, a sudden onset of floaters or an increase in the number of opacities, accompanied by flashes of light, should raise concerns for potential retinal tears or retinal bleeding. It is essential to seek medical attention promptly and have a retinal examination performed by a doctor for diagnosis. Therefore, if the retinal condition is good and the floaters are merely due to vitreous liquefaction, one should overcome psychological stress and deal with it rationally. If the aforementioned retinal pathologies occur, one should immediately follow the doctor's advice to avoid delaying treatment.

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Written by Li Zhen Dong
Ophthalmology
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The difference between floaters and cataracts

Floater disease is a vitreous opacity, while cataract is a lens opacity; these two conditions are not the same issue. Vitreous opacities can be classified as physiological or pathological. Physiological vitreous opacities appear as moving objects in front of the eyes, which are less noticeable in the dark and more noticeable under bright light; cataracts gradually affect vision. Physiological vitreous opacities in floater disease generally do not affect vision, but pathological vitreous opacities do affect vision. An eye ultrasound shows severe vitreous opacities and retinal changes, whereas the cloudiness in the lens, namely cataracts, usually means the vitreous and retina are normal.

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Written by Li Zhen Dong
Ophthalmology
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Can flying mosquito syndrome be detected by B-ultrasound?

Floaters, also known as vitreous opacities, can be categorized into physiological and pathological vitreous opacities. Physiological vitreous opacities generally do not affect vision, whereas pathological vitreous opacities can severely impact vision. In cases of physiological vitreous opacities, patients typically see unfixed, floating objects in their vision, which vary in shape and become more noticeable in bright light, but less clear in the dark. Examinations mainly include ocular B-ultrasound, fundus photography, and fibroscope examination, which can fully assess the extent of vitreous opacity. Once vitreous opacities occur, it is important to rest, seek active treatment, and have regular follow-up examinations.