Causes Bright Vision At Dawn And Diminishes During The Day?
Good afternoon. R nI would like to ask about the vision complaints experienced by my mother. R nIn my mother’s vision is disturbed, her vision is disturbed, such as, it is not bright when you see anything, I have been checked, and the results are cataract symptoms, but not It is recommended to wear glasses. r nMy mother’s eyesight feels bright at dawn, but when it is nearing noon my mother’s vision is not bright. r nI guess what the cause is. Is there any damage to the nerves of the eye.
Good evening, thanks for asking at HealthReplies.com. Bright vision conditions when the lighting conditions at dawn are dim, and it feels faint during the day when the conditions are brighter, is a condition called hemeralopia. This hemeralopia is the opposite of nyctalopia, or night blindness, where a person actually feels farsighted when it starts to get dark or when environmental lighting conditions dim.
This is because there is an abnormality in the nerves of the eye. In the retina of the eye, there are two types of eye nerves that work, namely nerve rods and nerve cones. Nerves work in dim conditions, and nerve cones work in bright conditions. In night blindness, the nerve trunk is damaged so that it is difficult for a person to see in dim conditions, while in hemeralopia, the nerve cones are damaged so that it is difficult for a person to see it only when the lighting conditions are bright.
The cause of hemeralopia can be due to various things, including cataracts, cone dystrophy, achromatopsia, and drug side effects. This condition is rare and requires examination by an ophthalmologist to determine it. In the case of your parents, although it is likely that there is a neurological disorder, this should still be confirmed by direct examination by an expert, namely an eye doctor. And if the results of the examination are due to cataracts, then you should obey your doctor's recommendations because cataracts cannot heal without surgery.
But you don't need to worry, cataract surgery is very often done with high success rates. In addition, the procedure is very fast, and you can go home the same day. If you are still confused about anything, discuss it with your eye doctor. So, hopefully it answers your question.