Is there any way pterygium can be treated?

Certainly: Ophthalmologists remove them all the time. However, the only time you really need to have it removed is when it occludes the visual field, so most that are lateral to the pupil do not require any specific treatment.

Pterygium treatment: If nonsurgical, over the counter lubricating and/or vasoconstrictor drops, low dose anti-inflammatory, restasis, etc. If more significant, excision with conjunctival autograft or other surgical techniques.

Pterygium treatment: Prevention is key remedy. Avoid sun (sunglasses, hat); avoid smoking. Natural rx info: see eyedoc2020.blogspot.com; Other ways to help decrease symptoms: cold artificial tears, nsaid drops, low dose or hi dose steroids (though risk of glaucoma, cataract); surgery is only real way to remove.

Yes: You can avoid stimuli to its progression light uv light, dust and wind. Medical treatment is surgical, outpatient and not requiring that you go to sleep. It is highly effective; not something to be feared if in fact you have a pterygium advanced enough to need removal.