Public condition directory
Browse public condition summaries from China medical resources by stable specialty category.
Retinal branch vein occlusion
Retinal branch vein occlusion is a condition caused by a thrombus blocking the retinal branch vein system. This disease is more common in older adults and usually affects one eye. Symptoms include decreased vision and intraocular hemorrhage.
View detailsAlbinism
Albinism is a genetic disorder caused by a defect or significant reduction in melanin synthesis, characterized by a lack of pigment in the skin, hair, and eyes. Patients exhibit symptoms of albinism when genes involved in melanin production mutate. Due to varying inheritance patterns and mechanisms of action among these genes, albinism can be categorized into three main types: oculocutaneous albinism, ocular albinism, and albinism-related genetic syndromes.
View detailsViral keratitis
Viral keratitis is an inflammation of the cornea caused by viral infection. This disease is characterized by recurrent episodes, progressive vision loss, and resistance to drug treatment. It is primarily transmitted through close contact and can lead to blindness in severe cases.
Microcornea
Microcornea is a congenital developmental anomaly characterized by a corneal diameter of less than 10 mm. It can affect one or both eyes and shows no gender predilection. It is often associated with other ocular conditions such as microphthalmia, iris coloboma, uveal coloboma, and congenital cataracts, which can lead to severe vision impairment. If not accompanied by other abnormalities, visual acuity is generally good.
View detailsColor blindness
Color blindness, also known as color vision deficiency or Daltonism, refers to the difficulty in distinguishing red, green, blue, or mixtures of these colors. Complete loss of color vision is very rare. Color blindness can be classified into congenital color blindness and acquired color blindness based on its etiology. Congenital color blindness is related to genetic factors, usually presenting as color vision deficiency from birth, without other obvious ophthalmic or systemic diseases. Acquired color blindness is generally caused by certain eye diseases, possibly due to damage to the optic nerve or retina caused by certain medications or lesions. In addition to color vision deficiency, it is often accompanied by decreased visual acuity.
View detailsGlobe rupture
Globe rupture refers to an injury where the intraocular pressure rapidly increases due to external force, leading to a rupture in a weak area of the eyeball wall. Patients may experience limited eye movement and decreased vision.
View detailsRetinitis pigmentosa
Retinitis pigmentosa (RP) is a genetic disorder and the most common inherited retinal degenerative disease. It is characterized by progressive blindness due to abnormalities in the photoreceptor cells (rods and cones) or the retinal pigment epithelium. The disease typically begins in childhood or adolescence, worsens during puberty, and affects the macula in middle and old age, leading to blindness.
View detailsXanthelasma palpebrarum
Xanthelasma palpebrarum, or xanthelasma for short, refers to yellow or orange plaques on the eyelids caused by lipid deposition. Apart from affecting aesthetics, it generally causes no other harm. This condition is more common in middle-aged and elderly individuals, with a higher incidence in women than in men. The main symptom is the appearance of flat or slightly raised yellow plaques or nodules on the eyelids.
View detailsRetinal vascular disease
Retinal vascular disease is often an ocular manifestation of many diseases. It is classified into retinal arterial vascular disease and retinal venous vascular disease based on whether it affects arteries or veins. Based on the pathogenesis, it is classified into inflammatory retinal vasculopathy and retinal vascular disease caused by obstruction.
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