|Title||THE VARIATION OF NEAR ADD WITH AGE IN SAUDI ARABIA|
|Author, Co-Author||Mosa'a Al-Abdulmunen|
Northern Hemisphere C-D
|Abstract|| PURPOSE. To determine the onset and prognosis of presbyopia for Saudi subjects of Arab origin.
METHODS. Clinical data from 1320 males and 1432 females from Arab origin patients were collated retrospectively from the author's hospital clinic in Riyadh, Saudi Arabia. All patients were between the ages of 35 and 80 years at the time of examination; their data were allocated to one of nine age bands, these being grouped in hemi-decades. All patients were in good general and ocular health. All patients had good binocular vision, recorded corrected acuities of 20/20 and required a near add of equal magnitude for each eye. The determination of the near add was via a direct subjective method.
RESULTS. The results suggest that the age of onset of presbyopia for Saudi Arabians is earlier (age of 35-39 years) than that found in Caucasians (age of 41-45 years) as found in other studies. The results also show that there is no significant difference in the age of onset or the progression of presbyopia between male and female subjects living in Saudi Arabia. The progression of add power, for Saudi Arabian subjects, with advancing age follows a curved course in both sexes. It is a two stage process, a steadily rising smooth curve with a initial steep phase between the ages 35-55 where the dioptric power of the add increases rapidly and a second (less steep) phase where there is a slight increase in add value. CONCLUSION. Presbyopia starts at an early age for people living in Saudi Arabia which may be due to the warm climate.
|Affiliation of Co-Authors|