Search results
Results from the WOW.Com Content Network
In an eye examination, light-colored spots on the retina are seen. Complete loss of visual acuity may happen [ citation needed ] The name of the condition comes from the small light-colored fundus spots on the retina, scattered in a pattern like birdshot from a shotgun , but these spots might not be present in early stages.
A red eye is an eye that appears red due to illness or injury. It is usually injection and prominence of the superficial blood vessels of the conjunctiva, which may be caused by disorders of these or adjacent structures. Conjunctivitis and subconjunctival hemorrhage are two of the less serious but more common causes.
Chorioretinitis is an inflammation of the choroid (thin pigmented vascular coat of the eye) and retina of the eye. It is a form of posterior uveitis. Inflammation of these layers can lead to vision-threatening complications. If only the choroid is inflamed, not the retina, the condition is termed choroiditis. [1]
In most instances, the diagnosis of toxoplasmic retinochoroiditis is made clinically on the basis of the appearance of the characteristic lesion on eye examination. Seropositivity (positive blood test result) for Toxoplasma is very common and therefore not useful in diagnosis; however, a negative result i.e. absence of antibodies is often used ...
Dermanyssus gallinae (also known as the red mite) is a haematophagous ectoparasite of poultry.It has been implicated as a vector of several major pathogenic diseases. [1] [2] Despite its common names, it has a wide range of hosts including several species of wild birds and mammals, including humans, where the condition it causes is called gamasoidosis.
Heterakis gallinarum is a nematode parasite that lives in the cecum of some galliform birds, particularly in ground feeders such as domestic chickens and turkeys. It causes infection that is mildly pathogenic. However, it often carries a protozoan parasite Histomonas meleagridis which causes of histomoniasis (blackhead disease).
Infectious coryza is a serious bacterial disease of chickens that affects the respiratory system, and it is manifested by inflammation of the area below the eye, nasal discharge, and sneezing. [ 1 ] [ 2 ] The disease is found all over the world, causing high economic losses, which are due to stumping off and reduction of egg production in case ...
Polypoidal choroidal vasculopathy (PCV) is an eye disease primarily affecting the choroid. It may cause sudden blurring of vision or a scotoma in the central field of vision . Since Indocyanine green angiography gives better imaging of choroidal structures, it is more preferred in diagnosing PCV.