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Symptoms of pterygium include persistent redness, [9] inflammation, [10] foreign body sensation, tearing, dry and itchy eyes. In advanced cases the pterygium can affect vision [ 10 ] as it invades the cornea with the potential of obscuring the optical center of the cornea and inducing astigmatism and corneal scarring. [ 11 ]
A pinguecula usually does not cause any symptoms. It is most common in tropical climates and there is a direct correlation with UV exposure. Histologically, there is degeneration of the collagen fibers of the conjunctival stroma with thinning of the overlying epithelium and occasionally calcification. [ 3 ]
Pterygium (eye) or surfer's eye, a growth on the cornea of the eye. Pterygium colli or webbed neck, a congenital skin fold of the neck down to the shoulders. Pterygium inversum unguis or ventral pterygium, adherence of the distal portion of the nailbed to the ventral surface of the nail plate. Pterygium unguis or dorsal pterygium, scarring ...
Diabetes, for example, is the leading cause of new cases of blindness in those aged 20–74, with ocular manifestations such as diabetic retinopathy and macular edema affecting up to 80% of those who have had the disease for 15 years or more.
A limbal nodule is any nodular lesion at the limbus (junction of the cornea and sclera) of the eye. The differential diagnosis for a limbal nodule can include: Pinguecula; Early Pterygium; Foreign body / foreign body granuloma; Phlycten, an inflamed nodule of lymphoid tissue; Episcleritis; Scleritis; Granuloma
Difference between pterygium and pseudopterygium Pterygium Pseudopterygium Etiology Degenerative process: Inflammatory process Age Common in adults [5] Occur in any age Site Horizontally, most commonly nasally [4] Anywhere Status Progressive(commonly) or stationary [5] Always stationary Neck Adherent to limbus [5] Free Probe test
Diabetic Macular Edema (DME): is an eye disease specifically related to diabetes, occurring due to fluid build-up in the retina as a result of sustained high blood glucose levels. It can result in blurred vision and vision loss. [5] Eye floaters and spots: where visible cloud-like images appear to "float" in an individual's field of vision. [6]
Oculogyric crisis (OGC) is a rare sudden, paroxysmal, dystonic reaction that may manifest in response to specific drugs, particularly neuroleptics, or medical conditions, such as movement disorders. This neurological phenomenon is characterized by a sustained dystonic, conjugate , involuntary upward deviation of both eyes lasting seconds to hours.