What is an intumescent cataract?
What is Intumescent Cataract? Intumescent cataract definition and meaning states that it is the older stage of cataract that progresses when the lens becomes swollen from the effect of degenerated lens protein, and this may lead to secondary angle closure (acute) glaucoma and maybe vision impairment.
What is Morgagnian cataract?
A morgagnian cataract is a hypermature cataract in which the total liquefaction of the cortex has allowed the nucleus to sink inferiorly. 1. Herein, we report a rare case of morgagnian cataract with an isolated posterior opening with no history of trauma and its successful management.
What does the word cataract mean in history?
1 [Middle English, from Middle French or Medieval Latin; Middle French catharacte, from Medieval Latin cataracta, from Latin, portcullis] : a clouding of the lens of the eye or of its surrounding transparent membrane that obstructs the passage of light. 2a obsolete : waterspout.
Why is Iris shadow present in immature cataract?
Iris Shadow: In immature cataract a crescentic shadow of the iris is seen in the pupil on oblique illumination. In mature cataract iris shadow is not visible as the opacity extends right to the anterior capsule. Also, in mature cataract no red glow is seen as the lens becomes completely opaque.
What is a white cataract?
When lens opacities become advanced, the crystalline lens can take on a white hue that blocks almost all light from entering the eye. These white cataracts cause profound visual loss in patients and prevent ophthalmologists from examining the posterior segment of the eye.
What happens if cataracts are left untreated?
If left untreated, cataracts will eventually cause total blindness. The good news is that cataracts can be easily treated. The primary treatment for cataracts is surgery to remove and replace the cloudy lens. Cataract surgery is a simple procedure that typically takes just about 15 minutes to complete.
What is the main cause of cataract?
Most cataracts develop when aging or injury changes the tissue that makes up the eye’s lens. Proteins and fibers in the lens begin to break down, causing vision to become hazy or cloudy. Some inherited genetic disorders that cause other health problems can increase your risk of cataracts.
What will happen if cataract is left untreated?
What is the meaning of the term intumescent cataract?
Intumescent cataract definition and meaning states that it is the older stage of cataract that progresses when the lens becomes swollen from the effect of degenerated lens protein, and this may lead to secondary angle closure (acute) glaucoma and maybe vision impairment. An intumescent cataract is the type of cataract that leads to a swollen
What is the difference between immature and mature cataract?
immature cataract ( incipient cataract) an incomplete cataract; the lens is only slightly opaque and the cortex clear. intumescent cataract a mature cataract that progresses; the lens becomes swollen from the osmotic effect of degenerated lens protein, and this may lead to secondary angle closure (acute) glaucoma.
Is there a difference between intumescent and Morgagnian cataract?
If the pupil is not dilated, the differential diagnosis of a white cataract may not be accurate. With dilation of the pupil, there should be no difficulty in distinguishing an intumescent cataract from a Morgagnian cataract. The intracapsular cataract surgeon recognized this as having the most friable of anterior capsules.
Why did the ancient Greeks call it a cataract?
The term “cataract” reflects the mistaken conception of the ancient Greeks that a cataract is caused by the effusion of a turbid fluid between the iris and the lens.