- Acanthamoeba
- Accommodative Dysfunction
- Amblyopia
- Anterior Uveitis
- Astigmatism
- Blepharitis
- Cataract
- Chalazion
- Color Vision Deficiency
- Computer Vision Syndrome
- Concussions
- Conjunctivitis
- Convergence Insufficiency
- Corneal Abrasion
- Diabetic Retinopathy
- Dry Eye
- Eye Coordination
- Floaters & Spots
- Glaucoma
- Hordeolum
- Hyperopia
- Keratitis
- Keratoconus
- Macular Degeneration
- Migraine with Aura
- Myokymia
- Myopia
- Nystagmus
- Ocular Allergies
- Ocular Hypertension
- Ocular Migraine
- Pinguecula
- Presbyopia
- Ptosis
- Retinal Detachment
- Retinoblastoma
- Retinitis Pigmentosa
- Strabismus
- Subconjunctival Hemorrhage
- Vision-Related Learning Problems
Pterygium
Pterygium is an abnormal growth of tissue on the conjunctiva (the clear membrane that covers the white
of the eye) and the adjacent cornea (the clear front surface of the eye).
Causes & risk factors
- Most common in tropic regions.
- Associated with chronic sun (ultraviolet [UV]) exposure.
- It can grow over a period of months to years.
Symptoms
- It can cause redness, irritation, and a change in the appearance of the eye.
- May cause astigmatism which can result in blurry vision.
- Whiteish or pinkish growth covering the front of the eye.
- It can be in one or both eyes.
Diagnosis
- Diagnosed through a comprehensive eye examination, typically while examining the front structures of the eye with a microscope.
- Based on the appearance of tissue growth from the white part of the eye onto the cornea.
- Often whitish, flat or raised area of tissue, and bilateral.
Treatment
- Lubrication, in the form of artificial tears, gels, or ointments to help with redness and or irritation.
- Surgery: Pterygium can grow back after surgery, so surgery is usually only considered in serious cases.
Prevention
- Use of sunglasses that block UVA and UVB rays.
- Wearing a hat when outdoors.
- Prescription glasses should have a UV protective coating and could be a wrap-around design.
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Related Articles
Acanthamoeba
Acanthamoeba is one of the most common organisms in the environment. Although it rarely causes infection, when it does occur, it can threaten your vision.
Accommodative dysfunction
Accommodative dysfunction is an eye-focusing problem resulting in blurred vision—up close and/or far away— frequently found in children or adults who have extended near-work demand.
Amblyopia (lazy eye)
Amblyopia—also known as lazy eye—is the loss or lack of development of clear vision in one or both eyes.