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Color blindness is a very prevalent problem though most people who have this condition have not discovered. This condition has been reviewed in the article titled ‘How do the Color-blind See the different Colors’. This article was authored by Frithiof Holmgren who was a Professor of Physiology at the University of Upsala. The subject of this article is ‘color Blindness’. It argued that people suffering from color-blind condition see colors in a different way from people who have normal eyesight. This is derived from the thesis that the color blind persons do confuse the objective light rays which give a quite different impression to the normal-eyed people. This article looks into the differing interpretations and explanations of color blindness and relates them to the normal eyesight. It is however also argued in the article that even the so called normal sighted people may have problems with distinction of colors. This article has done a good analysis of the condition by touching on a majority of sub conditions within the colorblind condition and relating well the condition with the normal sight condition (Homolgen, n. d).
According to the article, the color blind people confuse the perception of different kinds of light of which the normal eyed people easily interpret. Here the assumption is that color does only prevail in the color-system of people with normal eyes. This is subject to debate on whether all the normal eyed people would interpret the light in a similar manner and all conclude that they are seeing a particular color. The other concern is whether the use of objective light can only be the tool to be used in assessing or detecting the color-blind condition (Homolgen, n. d).
Color-blindness theories have to offer an explanation of differing links in relation to the causative factors and the effects of the condition. The article clearly notes that color-blindness has a number of underlying causative factors which are objective light and subjective perception that links up the ideas as in the objective light hypothesis. Different theories and opinions have differing perceptions concerning the subject of color blindness. Nonetheless these theories seem to have failed to bring out a clear evidence and proof of their basis of understanding the problem. The major reason cited for this is that the theories have to root their foundation in the perception of another person. This is done subjectively (Homolgen, n. d).
It is worthwhile noting that no single person can be perfect in mastering the conception of the condition. In the article Holmgren argues that it is quite difficult to come up with a proof which shows that the normal eyed people sees and interpret different colors similarly. However, the assumptions that the quality of different major colors is similar for all people who show similar color conception. We can borrow from this assumption but the generalization of this assumption seems not to qualify it. If the assumption is accepted, then we could as well argue that color blind people owing to the different cases of blindness interpret light in a similar way and see colors similarly (Homolgen, n. d).
There is a case of color-blindness that is inherited. This is referred to as congenital color-blindness. This condition according to the article is based on definite laws one of them being that children born of similar parents cannot be afflicted with the condition. Also, the degree of color blindness differs from one person to the other for those people who are affected by this condition. The inherited case of color blindness can affect one eye while the other eye remaining normal. However this seems to be difficult to fit in the quadrant of scientific thesis that the two eyes are controlled by a similar brain. However a number of cases of this nature have been reported and categorized as exceptional cases. As noted in the article, there exists a bridge between subjective perception of people who have the color blind condition and the scientific research which is objective. Scientific research forms the basis of understanding the subjective factors which underlie the problem and thus cannot be separated as indicated in the article. It was commendable for Holmgren to conduct a research concerning subjective cases and the objective scientific research of the problem. The research was meant to assess the cases of one-sided blindness. Only a single case of this nature was diagnosed in Sweden. Moreover, the causative factor for this case was different – it was caused by an accident. However, further research found two cases which are one-sided violet- blindness and one-sided red-blindness both in one individual, one eye having the violet-blindness and the other having red-blindness. Thus it is true that such cases do exist but are not more common. Thus we could as well say basing on the research findings that no case of perfect blindness of a single eye exists (Homolgen, n. d).
The article in general did offer a good thesis on the problem of color-blindness. The different cases of blindness and causative factors were clearly discussed. Also the comparison of color-blind people and those with normal sight was done.

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