lens shrinkage
Introduction
Introduction In the case of complicated cataract associated with anterior segment disease, the lesion progresses slowly, such as local inflammation is controlled, and turbidity can be stable for a long time without development. As the disease progresses, the degree and extent of turbidity continue to increase and expand, eventually involving the entire lens. During the progression, crystalline substances or calcareous deposits may appear in the lens or in the capsule, and in the advanced stage, the lens may shrink and even calcify. Concurrent cataract is a turbidity of the crystal caused by other diseases in the eye that can affect the nutrition and metabolism of the crystal.
Cause
Cause
Ocular inflammation or degenerative lesions cause disorders in the nutrition or metabolism of the lens, leading to turbidity. Common in uveitis, retinitis pigmentosa, retinal detachment, glaucoma, intraocular tumors, high myopia and low intraocular pressure. Caused by glaucoma, high myopia and nuclear cataract are often caused by the anterior cortex and nucleus.
Examine
an examination
Related inspection
Lens examination ophthalmology
The patient has a manifestation of primary eye disease. Often monocular. The anterior segment of the anterior cortex is caused by the disease of the posterior segment of the eye. The granules are gray and yellow turbid before the posterior capsule and subcapsular cortex of the lens, and more vacuoles are formed. The central portion and the peripheral portion of the lens nucleus expand and become radial, forming a rose-like turbidity. Following the spread of the forward cortex, the lens is gradually turbid. After the absorption of water, the capsule is enlarged, the lens shrinks, and there are changes such as calcification. Caused by glaucoma, high myopia and nuclear cataract are often caused by the anterior cortex and nucleus.
Diagnosis
Differential diagnosis
Differential diagnosis of lens shrinkage:
1, lens protein escape: lens protein escape is the early symptoms of lens protein allergic glaucoma.
2, aphakic eye: aphakia (aphakia) refers to the lack of a lens in the eye, the absence of a lens in the pupil area is also included in this category, called the aphakic state.
Proper diagnosis of primary eye disease is essential, and the shape and location of lens opacity is helpful in diagnosis.
