Smart phones can make you go “Sightless” temporarily
It is a very common observation for people to loose their vision for few seconds after doing these events, 1) after staring at sun for Nano-seconds, 2) entering in to home after having long out door stay in the midafternoons in summer, 3) staring in to the light coming out of a torch and 4) after removing the blind folds while kids playing. But how many of you know that using mobile phones in the dark regularly or staring at screens for long hours while you rest in bed can cause transient blindness. Yes, you read it correct; a study published in NEJM confirms existence of such phenomena.
There were two case studies examined by the authors of the paper. In the first study the team faced difficulty to rule out the exact cause for the patients spoiled vision in the right eye at nights, as her angiography, Vitamin A, eye testing, echocardiography, thrombophilia screening and heart examinations were normal. In the second case a 40-year old lady with defective eyesight while getting up from bed with a history of 6 months was attended and lab reports seem to be normal with respect to her condition. The medical condition is known as “Transient monocular vision loss”. This medical condition needs attention to cure unlike the situations explained earlier.
Transient monocular vision loss normally seen in adults and in maximum cases the cause for Transient monocular vision loss is well known. Transient visual misfortune in kids is less normal than in grown-ups and will probably have a kindhearted source. Reasons for transient visual misfortune in youngsters incorporate headache and epileptic seizure. Transient blindness may continue from seconds to hours and the type of vision lass may be monocular or bilateral. Transient visual misfortune can in this way be a manifestation of a genuine vision or life-debilitating condition, requiring critical examination and treatment, or it might have a more generous beginning (eg, headache).
Coming back to our case studies from NEJM, at the point when the patients were visited neuro-ophthalmic facility, nitty gritty history taking uncovered that side effects happened simply following a few minutes of review a cell phone screen, oblivious, while lying in bed (before going to rest in the primary case and in the wake of waking in the second). Both patients were requested that analysis and record their side effects. They reported that the manifestations were dependably in the eye contralateral to the side on which the patient was lying.
Try to avoid using mobile phones in dark and while you are relaxing on bed. I don’t know what happens with individuals who watch on their laptops on beds. May it is interesting to do trial study to find out dose laptops will have the capacity to induce Transient monocular vision loss.
Alim-Marvasti, A., Bi, W., Mahroo, O. A., Barbur, J. L., and Plant, G. T. (2016) Transient Smartphone “Blindness”. The New England journal of medicine 374, 2502-2504