ABSTRACT
Background and Aim: Myopia is one of the most prevalent complaints of patients referring to ophthalmologists. Regarding the progressive nature of this complication, it was decided to assess the patients referring to the eye clinic of Valieasr hospital in Birjand [in 2012]
Materials and Methods: In this cross- sectional survey, with simple non-probable sampling, a total of 403 myopic patients who had referred to the eye clinic of Valieasr hospital in Birjand in 2012 were collected. Data collection tool included a researcher-designed checklist has been completed by the optometrist. Increase of 0.5 diopter was accounted as the progression of myopia. After the questionnaires were filled out, the obtained data was fed into SPSS software [V:16] and finally analyzed by Chi-square
Results: The present study revealed progression of myopia in 47. 4% of cases in right eye and 47.6% in left eye. progression of myopia had also a significant relationship with variables of age and hours of study in a day in both of the eyes and with variables of sex and number of hours wearing medical glasses in one eye
Conclusion: It was found that progression of myopia had a significant relationship with variables sex, age, hours of study and hours of wearing medical glasses. Thus, controlling these variables can have both a preventive and curing role for the patients and those prone to the disease
ABSTRACT
Age-related macular degeneration [AMD] is one of the leading causes of visual loss among people aged 65 yr and older. The pathophysiology of AMD is poorly understood. The purpose of this study was to evaluate the relationship between serum lipid concentrations and age-related macular degeneration. In this case-control study, total cholesterol [TCH], low density lipoprotein [LDL], high density lipoprotein [HDL] and triglyceride [TG] of 32 patients with AMD were compared with 32 subjects without AMD that were matched for age. Data were analyzed using Independent t and Chi-Square Tests. TCH, LDL, and TG serum concentrations were significantly higher in AMD patients compared with control group [P<0.001, P<0.001 and P<0.017 respectively]. There was no difference in HDL concentration between two groups [P=0.781]. High level of total cholesterol, TG and LDL were associated with increased risk of AMD. Results of this study suggest further research to better understand the underlying biological mechanisms of AMD related to serum cholesterol