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Zheng Xin
Ophthalmology
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Do cataracts replace the lens?
Cataracts refer to the clouding of the lens, leading to decreased vision. Cataract surgery involves removing the cloudy lens and replacing it with an artificial one to restore vision. Simply removing the cataract lens does not restore vision, as it leaves the eye in a highly hyperopic (farsighted) state. An artificial lens must be inserted to improve vision and correct the eye's refractive state. Therefore, cataract surgery necessitates the replacement of the lens.
Difference between fundus diseases and cataracts
Diseases of the eye fundus mainly refer to diseases of the choroid and retina in the posterior segment of the eye, while cataracts are diseases of the lens in the middle segment of the eye, so there is a difference in their locations. Clinically, eye fundus diseases manifest as declining vision and obstructed vision, while cataracts manifest as blurred vision, foggy vision, or seeing halos around lights. Eye fundus diseases can be treated conservatively or surgically, whereas cataracts require surgical treatment.
Is it good to apply heat to acute conjunctivitis?
Acute conjunctivitis is usually caused by bacterial infection, also known as pink eye. In the early stages of treating acute conjunctivitis, it is necessary to choose sensitive antibiotics for anti-infection treatment, such as antibiotic eye drops. Frequent application can alleviate symptoms. Generally, it is not recommended to apply heat as this can easily lead to the spread of local infection and may also lead to cross-infection. However, appropriate local cold compresses can be applied, as acute conjunctivitis is characterized by symptoms such as redness, swelling, heat, pain, and increased secretions. Local cold compresses can help reduce symptoms and relieve discomfort.
How to deal with acute conjunctivitis?
Acute conjunctivitis can also be called pink eye. It is an acute inflammatory reaction of the conjunctiva, mainly caused by bacterial infection, commonly by Staphylococcus aureus. The treatment mainly involves local anti-infection treatment, using antibiotic eye drops such as chloramphenicol eye drops, ofloxacin eye drops, or tobramycin eye drops. While using topical antimicrobial drugs, it is important to avoid rubbing the eyes with hands and avoid prolonged use of the eyes.
What to do with acute conjunctivitis?
Acute conjunctivitis is the acute inflammatory response of the conjunctiva, primarily caused by bacterial infection. The main treatment is the local use of antibacterials, such as tobramycin eye drops, ofloxacin eye drops, or chloramphenicol eye drops. Simultaneously with antibacterial treatment, it is necessary to practice frequent hand washing, avoid rubbing the eyes, wash the face with running water, and keep items like towels and handkerchiefs separate from others and frequently disinfected. During acute conjunctivitis, it is important to avoid contact with others, as it can be contagious through contact.
Can retinal detachment heal by itself?
Retinal detachment refers to the separation between the neural epithelial layer and the pigment epithelial layer of the retina. Based on its cause, it can be categorized into rhegmatogenous retinal detachment, tractional retinal detachment, and exudative retinal detachment. Rhegmatogenous retinal detachment requires repositioning of the retina and closure of the break. If it is tractional retinal detachment, it is necessary to remove the cause, generally requiring vitrectomy and retinal reposition surgery. Exudative retinal detachment generally occurs due to inflammation or other irritations causing exudation or bleeding in the retina, resulting in detachment, typically without retinal breaks. This type of retinal detachment only requires treatment for the underlying disease, and aggressive treatment of the primary disease can generally lead to a cure. Therefore, retinal detachment must be treated; it cannot heal on its own.
Does retinal detachment cause eye pain?
Retinal detachment refers to the separation between the neural epithelial layer and the pigment epithelial layer of the retina at the back of the eye. Its main symptoms include flashes of light, blurry vision, and visual obstruction. It is characterized by a painless, sudden decrease in vision. Therefore, patients experiencing retinal detachment will notice flashes of light and a rapid decrease in vision prior to the condition developing, without feeling pain, thus there is no pain associated with retinal detachment.
What does a detached retina feel like?
The professional term for retinal detachment is "retinal detachment." It primarily refers to the separation between the neuroepithelial layer and the pigment epithelial layer of the retina. Early manifestations of retinal detachment may include mild vision loss, accompanied by floaters, flashes of light, or a shadow that obscures vision. As the condition progresses, symptoms gradually worsen, and when the macular area of the retina is involved, significant vision loss occurs.
Is praying to gods and worshipping Buddha effective for trichiasis?
Trichiasis generally has two types, one is simple trichiasis, which can be treated through electrolysis. By using an electric needle to destroy the hair follicle, the follicle will no longer produce eyelashes. The other type is caused by entropion of the eyelid, which requires surgical correction of the entropion to be cured. Therefore, the treatment of trichiasis needs to be conducted in a hospital; praying to gods and worshipping is of no effect and serves only as a psychological effect.
Trachoma stones are formed how?
Trachoma calculus is mainly caused by infection with Chlamydia trachomatis resulting in calculus formation. It is not actually a stone or calculus in the true sense, but rather a coagulum accumulated in the depressions or crypts of the conjunctival epithelium, consisting of desquamated epithelial cells and degenerative cells. Thus, it's not a real calculus, and is commonly seen in adults, primarily occurring in patients with chronic eye diseases such as trachoma and chronic conjunctivitis.