Vision problems are of many types and they are presented with the following symptoms: blurred vision, floaters, halos and blind spots (scotomas). If such changes occur to your eyes it is recommended that a person should see an eye doctor for examination. Eye check-ups are of importance since; they help to prevent loss of vision or severe eye complications.
Vision problems are caused by the various conditions which include: cataracts, glaucoma, macular degeneration, presbyopia, night blindness, brain tumours, stroke, migraines, floaters, diabetic retinopathy, arteritis and retinal detachment. Various medications can also lead to vision problems and they are: medications of malaria, ethambutol for tuberculosis treatment, antihistamines, anticholinergic, indomethacin, phenothiazine’s and blood pressure pills like thiazide diuretics.
The common vision problems are: near sightedness also referred to as myopia. It is characterized as a problem whereby images are focused in front of the retina rather than on it hence, objects at a distant appear blurred. It mainly occurs during childhood and it is inherited from the family. Farsightedness is a vision problem also known as hyperopia. It is whereby the eye focuses an image slightly behind the retina hence, objects near it appear blurred. It outgrows as a person matures.
Astigmatism is said to occur when the central cornea is not uniform, when it combines with myopia and hyperopia it occurs when the clear cornea has a non-round curvature. Due to this the eye will lack a single point of focus leading to uneven vision pattern and the patients sees certain objects clearly and others appear blurred.
Presbyopia occurs when the eye develops less focusing power for viewing things at a distance; it leads to blurred vision even at a normal reading distance. It starts when turns the age 40 and that’s why people above this age are dependent on glasses in order to read and view things clearly even at a distant.
Retinal detachment occurs when small holes develop in area where the retina is thin, this leads to seeping of the clear liquid vitreous behind the retina and the retina comes off. If not treated immediately blindness occurs. Factors that lead to this are: extreme near sightedness, previous eye surgery, inherited thinness of the retinas tissues and previous retinal detachment.