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Patient Review Highlights
My left eye has been twitching / pulsating for the past few weeks. There is no allergy or swell but it is very irritating .Could you please suggest any remedy for it.
I washed my eyea but still there are some bubbles showing in eyes. What to do its like spots on mirror.
Hello Everyone, I am having a dry eyes issue from last 2.5 years but my vision is good. I am using lubricating eyes drops. I am also using I-Meg 3 capsules twice in am day (which contains 500 mg omega-3 fatty acids) from last 15 days. I am using computer for 8-9 hours on daily basis. Please suggest me what to do to completely resolve such eye itching problem?
My father is suffering from glaucoma. He daily use eye drop for his treatment. I als check my eyes and doctor says pressure is ok. Am I at risk.
My eyes become yellow, and stomach upset and high fever, body becomes weak throat paining continuously sneezing throughout the day what should I do, please help me as soon as possible, I am waiting for your reply.
Hello sir/maa'm I need your help. My right eye is burning, watering.& little bit of pain on it. What should I do. please give me suggestions.
Hello dr, I am a 35yrs male, 5'7" height,72kg weight, medium body. My eye sight is weak, please tell me about white colour hair problem, more sleeping, laziness, pain in body at sleeping and risng time, not proper blood circulation, many times hand and legs become inactive. Please give solution.
I have the complaint of excessive tears coming from the eyes, while I am smiling or even yarning which is not like normal. What should I do for that.
I have sight From my child onwards I want to go for operation. If operation done how many days I have to take rest?
Colour blindness is not a type of blindness at all; it is an insufficiency in the way some people see colour. Once afflicted by this vision problem, people face difficulty in distinguishing specific colours like red, green, blue or yellow. So to call it colour vision deficiency would be much appropriate, and it hits men more often than women. In a report by Prevent Blindness America, it is revealed that about 8% of males and less than 1% of females are affected with colour vision problems. Generally, red and green colour deficiency is the most commonly found. In very rare instances, a person may carry a trait which lessens his ability to distinguish between blue and yellow colours. This blue-yellow hue insufficiency normally is found in men and women equally.
Understanding signs and symptoms: Do you have any difficulty in seeing yellow, green or red colours? Do people often tell you that you are seeing the wrong colour? If so, then these are key signs that you are affected with a colour perception deficiency. Quite opposite to popular belief, hardly a colour blind person is able to see only the shades of gray. Most people who are deemed as colour blind are able to see shades but cannot distinguish between one colour and another and get easily confused with other shades, depending on the kind of colour blindness they are affected with. If you have suddenly developed a colour vision deficiency when you were able to view and distinguish all the shades previously, then you should visit an ophthalmologist without further delay.
Causes behind colour blindness: Colour blindness takes place when the light-sensitive cells within the retina stop responding accurately to variations in wavelengths of light.
Photoreceptors present in the retina are termed as rods and cones. Rods are present abundantly, and about 100 million rod cells are present in human retina and these cells are very sensitive to light, but rods are impervious to sunlight and therefore, are incapable of perceiving colours. The cones, on the other hand, are responsible for our understanding of different colours. There are three types of cones, each of which is responsible for perceiving red, green and blue light. The three cones work together to help us see the whole range of colours. People who are colour blind usually have faults in a particular cone cell, which makes them unable to distinguish that particular shade.
Combatting colour blindness: Gene therapies are reported to cure colour blindness in monkeys, as per the reports of a study conducted by researchers of the University of Washington and Florida in September 2009. While early methods appear promising, gene therapy is not considered effective for human beings unless the treatments are verified to be safe.
Hence there is no effective means of curing colour blindness, but there are some strategies that may aid you to function better. However, if you are into graphic designing or anything that requires handling of different colours, then you will need professional help. The sooner you become aware of your insufficiency, the better you can compensate for it.
Some people also use contact lenses or eyeglasses that act as filters to enhance colour perception. If you are affected by this problem, make sure you visit an eye-care practitioner for detailed advice.