olor blindness (5) 

which is a term that means a person has a disorder that makes him lose the ability to see one of the following three colors: red, blue or green, or the color resulting from mixing them together.

 Symptoms of color blindness

 And with the question of Dr. Muhammad Hantira - Assistant Professor of the Ophthalmology Department - Umm Al-Qura University - Saudi Arabia

He explained that Symptoms may vary from case to case, including:

• The ability to see a wide spectrum of different colors, so that the patient is not aware of the fact that he sees colors differently from what others see
• The ability to see only a few different colors while others can see thousands of them
• In very rare cases, the patient's ability to see only three colors is limited, namely: black, white and gray         

 Causes and risk factors of color blindness

• One of the most important causes of color blindness is the genetic factor, as a person is born with an injury.
• Dr. Mohamed Hantira added:  
• Genetic factors are not always the cause of color blindness, as it may sometimes result from acquired factors.
• Color blindness may occur as a result of:
• Getting old.
• Eye problems, such as: glaucoma, macular atrophy, cataract, or diabetic retinopathy.
• injury to the eye                                            
• symptom to abuse certain medications

 Complications of color blindness

 Color blindness may change the course of life of those affected, it may increase the difficulty of learning to read, and it may limit the possibility of progress in work in certain areas.

 Diagnosis of color blindness

 Dr Huntera explained:

  There are tests that adopt certain standards that reveal how to distinguish between different colors.

 Color blindness treatment

 The treatment or correction of hereditary color blindness is sticky, so that part of the problems of acquired color blindness can be treated, and this depends on the cause.

 For example, if the cause of color blindness is cataract, it may be removed by a surgical procedure to restore the ability to see colors again.

 Dr Huntera advised:

 That a person with color blindness can take the following steps to compensate for his inability to see colors:

• The use of contact lenses or special glasses to prevent dazzling.
• Glasses with special lenses, if the color blind person cannot distinguish colors at all, and relies on rod cells only for vision.
• Learn to use the vividness or location of a color, rather than the color itself.  For example, he can learn to arrange the locations of the three colors of a traffic light.