I have worked in Qatar for the past 6 years,...

We would like to inform you that if your inquiry is related to a work injury in the eye, the following information is important:
If you were exposed to the inability to see despite the fact that six years ago you were seeing well, you shall obtain a medical report from a government hospital showing your medical condition, provided that the result of this medical report is confirming the existence of a link between the nature of your work and your medical condition related to the inability to see .
If the employer refuses to grant you appropriate compensation, then you may file a complaint at the Ministry of Labor in addition to filing another complaint to the Human Rights Department of the Ministry of Interior.
Here are the texts of the Qatari Labor Law related to your inquiry:
Article (109):
The worker who sustains a work injury shall be entitled to receive medical treatment appropriate to his condition at the cost of the employer in accordance with the decision of the competent medical authority.
The worker shall receive his full wage during the treatment period or the period of six months whichever is nearer. If the treatment continues for a period exceeding six months the worker shall be paid half of his wage until his recovery or proof of his permanent disability or death whichever is nearer.
Article (110):
The heirs of the worker who dies because of the work and the worker who sustains a work injury resulting in a partial or total permanent disability shall be entitled to receive compensation. The amount of compensation in case of death of the worker because of the work shall be calculated in accordance with the provisions of Islamic Sharia.
The work injury resulting in a total permanent disability shall be considered as a death of the worker. The proportion of the partial permanent disability to the permanent total disability shall be fixed in accordance with the schedule (2) of this Law and the amount of compensation in this case shall be calculated on the basis of this proportion from the amount of compensation provided for in the preceding paragraph.
Article (112):
If a dispute arises between the worker and the employer as to the ability of the worker to resume his work or as to any other medical matter related to the injury or disease or the treatment prescribed thereof or the applied treatment the Department shall refer the dispute to the competent medical authority. The decision of the said authority on the matters falling within its competence shall be final.