Pupils turn white
Introduction
Introduction China is a yellow species, the pupil is black, quiet and bright. If the color of the pupil is abnormal, it indicates that the disease has already occurred. The pupil area changes from black to white, the most common cause being senile cataract.
Cause
Cause
The most common cause is senile cataract, in addition to iridocyclitis, glaucoma, diabetes, eye trauma and other reasons.
Examine
an examination
Related inspection
Eye function examination fundus examination eye examination
The pupil area changes from black to white, which means that the object is unclear or the object is not visible at all.
Cataract lens opacity is called cataract. Aging, genetic, metabolic abnormalities, trauma, radiation, poisoning and local malnutrition can cause damage to the lens capsule, increase its permeability, loss of barrier function, or lead to metabolic disorders of the lens, which can denature the lens protein and form turbidity.
Diagnosis
Differential diagnosis
Differential diagnosis of pupil whitening:
1, the sputum conjunctiva appears gray-white membrane: sputum conjunctiva appears gray-white membrane can be seen in various types of conjunctivitis, usually caused by infection factors. Due to leakage, bleeding, and mechanization of the new blood vessels, scars are finally formed, forming a permanent mechanical film.
2, the conjunctiva becomes shallow or pale: the conjunctiva becomes lighter or paler. When the anemia is different, the color of the conjunctiva becomes lighter or paler.
3. Gray-white tumor nodules formed on the iris surface: slit lamp examination, tumor cell colonies in the anterior chamber, pseudo-anterior chamber empyema, post-corneal deposition, and gray-white tumor nodules on the surface of the iris, which may be retinoblastoma The first phase of diagnosis provides some clinical evidence.
4, can see white reflection in the pupil: white sputum sign refers to a special symptom of white reflection in the pupil, can be caused by a variety of intraocular diseases, often severe visual impairment.
The pupil area changes from black to white, which means that the object is unclear or the object is not visible at all.
Cataract lens opacity is called cataract. Aging, genetic, metabolic abnormalities, trauma, radiation, poisoning and local malnutrition can cause damage to the lens capsule, increase its permeability, loss of barrier function, or lead to metabolic disorders of the lens, which can denature the lens protein and form turbidity.
