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Fuchs endothelial corneal dystrophy (fecd) and cataracts some people with cataracts also have fuchs endothelial corneal dystrophy (fecd) if a fuchs patient undergoes cataract surgery, the fragile endothelial cells of the cornea may be damaged (the endothelial cells are those cells at the very back of the cornea. There are three types of corneal dystrophy, categorized by location: epithelial corneal dystrophy, where cell formation is affected stromal corneal dystrophy, where the cornea will become cloudy and endothelial corneal dystrophy, where the cells of the lining of the cornea are affected.
Two problems occur in animals with corneal edema from corneal endothelial degeneration the first is decreased vision a cornea with edema is cloudy and blurs vision, therefore the cloudier the cornea the worse the vision becomes the second problem is the formation of corneal bullae, which are little blisters under the corneal epithelium. Causes of corneal dystrophy in dogs corneal dystrophy is an inherited condition affecting the ability of the cells to process fat it is an autosomal recessive trait, meaning both the dam and the sire must carry the gene in order for the puppy to be affected, at least in some breeds.
Cataract surgery can worsen fuchs’ dystrophy because of damage to the endothelial cell layer for this reason, patients with cataracts and fuchs’ requiring surgical intervention are often recommended to undergo cataract surgery before or at the same time as corneal transplantation to ensure the best outcome for the transplant.
Fuchs’ endothelial dystrophy is a genetic disorder in which the corneal endothelium becomes progressively weak, leading to corneal decompensation and decreased vision because fuchs’ worsens with time, patients tend to present with symptoms of decreased vision in their 60s and 70s.
Also called fuchs' corneal dystrophy and fuchs' endothelial dystrophy, the disease usually affects both eyes and causes a gradual decline in vision due to corneal edema (swelling) and clouding as the disorder progresses, swelling of the cornea can cause blisters on the front of the cornea known as epithelial bullae (bull-eye.