Can slit lamp examination detect floaters?

Written by Li Zhen Dong
Ophthalmology
Updated on September 04, 2024
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Floaters generally do not require examination with a slit lamp microscope; they are examined using A-scan or B-scan ultrasonography to assess the extent of vitreous opacity, posterior vitreous detachment, and the status of the vitreous in relation to the retina. Floaters are also known as vitreous opacities and can be categorized into physiological and pathological vitreous opacities. Physiological vitreous opacities generally do not affect vision but appear as some floating objects in front of the eye, which do not change vision. These are more visible in bright light and less visible or absent in low light. If the vitreous opacity is pathological, it can affect vision and requires further ophthalmologic examination and active treatment.

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Written by Li Zhen Dong
Ophthalmology
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Severe cases of floaters can lead to what outcomes?

Floaters, also known as vitreous opacities, can be divided into physiological and pathological types. Physiological vitreous opacities, even if severe, do not affect vision, but simply result in a higher number of floating objects seen in the field of vision. Pathological vitreous opacities, on the other hand, can significantly decrease vision and may even lead to blindness. Therefore, during an examination, it is important to first check the uncorrected visual acuity, corrected visual acuity, intraocular pressure, ocular B-ultrasound, and fundus photography. If there are any underlying eye conditions, they should be actively treated to potentially restore vision as soon as possible. It is also advisable to ensure adequate rest, reduce close-up activities, and maintain a light diet.

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Written by Li Zhen Dong
Ophthalmology
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How to treat blurry vision and floaters?

Blurry vision and floaters should prompt an examination by an ophthalmologist. Physiological vitreous opacities generally do not affect vision, but if they do, active treatment is required. Vitreous cloudiness can also be seen in patients with refractive errors, which include myopia, hyperopia, astigmatism, and presbyopia. In these cases, correct pupil dilation and optical correction should be done. After alleviating the issues with glasses, it is important to use the eyes properly, and orthokeratology can also be used. Once the prescription stabilizes, surgical treatment can be considered. However, surgical treatment generally only relieves the refractive condition and does not solve the nature of eye surrounding issues. Hence, it is crucial to use the eyes correctly and be cautious of further increase in the prescription.

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Ophthalmology
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Can flying mosquito disease go untreated for over twenty years?

If it is physiological floaters, generally there is no special treatment, and they are relatively stable and do not affect vision. Patients mainly experience floating shapes that vary in appearance in front of their eyes. Typically, these floaters are more visible under bright light and less visible or invisible under dim light. If there are not many floaters, it is advised to rest and treat the symptoms accordingly. If the patient requests treatment, therapies like amino iodine eye drops or sodium hyaluronate eye drops can be used. Treatment can improve the patient's mood, but generally, the condition does not worsen.

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Written by Li Zhen Dong
Ophthalmology
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The difference between transparent and black flying mosquito disease

Floaters appear before the eyes as either transparent or opaque, black objects—it's a matter of severity, generally not affecting vision. Floaters can be classified as physiological or pathological. Physiological floaters generally require only rest, reducing close-up tasks, and avoiding eye fatigue. Treatments can include using Ametiodine eye drops and Sodium Hyaluronate eye drops. If the floaters are pathological, one should visit an ophthalmologist for examinations such as an ultrasound (B-scan), intraocular pressure test, uncorrected visual acuity, corrected visual acuity, and fundus photography. Active treatment and regular follow-ups should be pursued, with close attention to vision changes. (Please use medication under medical supervision.)

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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.