Retinal image deficiency (RAD) is the most common visual impairment associated with aging and blindness, according to research published in the British Medical Journal.
The researchers examined the prevalence of retinopathy and visual impairment across the world and in different geographic areas, from the United States to the Middle East and Africa.RAD is a rare condition, and many people with it have difficulty seeing at night.
They can experience severe vision loss, which is often difficult to correct and which is the primary cause of vision loss.
Retinal image deficits are less common, but they are still very common.
The researchers studied data from a sample of 7,743 participants, including 2,539 adults, aged 50 to 85.
The participants were asked whether they had retinal impairment or visual impairment, and how much they had lost sight.
Radiography found that retinal deficit was the most frequent, accounting for 9.4% of the total number of cases.
This was a decrease from the previous study, which found that 1.5% of all cases were associated with the presence of RAD.
The average age of those with RAD was 60.9 years, which was higher than the national average of 56.7 years, but not as high as the prevalence in the United Kingdom.
About 8.7% of those participants who reported visual impairment had RAD, which decreased to 6.4%, compared with 6.5%, for those who had RAD.
In total, the researchers found that 7.6% of people with RAD had visual impairment.
This is the highest percentage of cases reported, and it is higher than that in the European Union, where less than 1% of individuals reported any visual impairment (8.3%).
This finding suggests that the association of RAD with retinal loss is less consistent across different geographic regions.
In addition to the prevalence and prevalence of RAD, the data also showed that the prevalence increased significantly in countries where people lived in densely populated areas, such as the United Arab Emirates (UAE) and Saudi Arabia (SAR).
This is not necessarily because people living in such areas experience more RAD.
Rad is most common in the US and Canada, where more than half of the population is affected.
The authors suggest that this is because people who live in these countries are more likely to be exposed to RAD in the early years of life.
In countries such as India, Vietnam, and Japan, RAD prevalence is lower, but the authors argue that these countries have much lower rates of RAD and therefore may be more likely than other countries to be more affected by RAD.
More research is needed to better understand the causes and consequences of RAD for the general population.