Blurry vision means an object is not visible clearly it becomes hazy, this is common symptom that you can not see properly like a normal person sees, it can happen with one or both eyes. This is very regular phenomena but if a person feels sudden loss of vision particular in one eye, it denotes that your eyes may have some serious eye related problems. People should check eye including refractive errors or power check with standard Snellen chart test, slit lamp examination, dilated retina check-up.
Myopia the condition is distance objects are seeing blur and near objects are clear, person may complain headache, eyestrain, crowding of words. Correction options are, eyeglass of minus power, contact lens, Lasik.
Hypermetropia here distance object sees clearly but near is hazy, person may complain headache, strain, squinting. Correction options are glass with plus power, contact lens, refractive eye surgery.
Astigmatism is a condition of spreading of image shape, edges of objects are not focused, main reason is irregular shape of cornea, correction with cylindrical power glass, toric contact lens, refractive surgery.
It is an ophthalmological term, sudden temporary blindness in one eye stays for few seconds to minutes, cause is less blood supply to eye, may early sign of brain stroke. We have blood vessels on neck which supply bloods to eye and the brain from heart. High blood pressure, high cholesterol, diabetes, smoking can be risk factors of this.
Main Causes of Sudden Vision Loss Are:-
Person has longer period of high sugar level can affect retina, it called diabetic retinopathy, damages blood vessels it leads bleeding inside eye, swelling of macula it has peak vision, person may have vision loss with floaters, early diagnosis and treatment required otherwise may leads to severe vision loss.
Brain Stroke and Tumour
Person had stroke may experience of sudden vision loss, disbalance body, weakness. Tumour can make pressure inside the skull has symptoms like sudden vision loss, headache, imbalance personality, nausea, vomiting.
Inflammation of optic nerve that connects eye to brain, symptoms are sudden blur vision, may feel mild pain when moving eye ball, colour vision affected.
Damage to Retina
Retinal detachment due to any trauma or some times unknown reasons, retinal artery occlusion, central serous retinopathy when macula involve central vision will loss while side vision will remain present.
Blood vessels may leak which cause haemorrhages in vitreous due to damage retina or trauma, it can obstruct light to enter into eyes, can see floaters also.
Do not ignore any kind of vision loss whether it is suddenly or gradually always consult with qualified eye care practitioner, you can check own vision grossly, you can assess by yourself, see a object or calendar which is placed 3meter distance try to read it one by one eye cover, so that self-consciousness is more needed for your better health.