The North African Journal of Food and Nutrition Research
Background: The blood pressure (BP)-lowering effect of beetroot is attributed to its high nitrate... more Background: The blood pressure (BP)-lowering effect of beetroot is attributed to its high nitrate concentration, which converts to the vasodilator nitric oxide. Nitric oxide may also mediate ocular aqueous outflow to regulate intraocular pressure (IOP). Aims: We investigated the effect of beetroot juice on IOP and ocular vessel density. Subjects and Methods: With a single-blind, crossover design, 19 healthy young adults participated on 2 days 1 week apart. On Visit 1, baseline IOP, BP, and ocular vessel density (optical coherence tomography angiography, disc, and macula) were measured. Three hours after consumption of 16 ounces of beetroot juice or water (randomly assigned), all measurements were repeated. On Visit 2, baseline and 3-hour post-consumption measurements were assessed, with each subject consuming the drink not ingested on Visit 1. Results: Paired-samples t-test showed 1) no difference in IOP change post-water vs post-beet root juice (P = 0.27), and 2) mean systolic and ...
Background: Inclusion criteria for validation of the Convergence Insufficiency Symptom Survey (CI... more Background: Inclusion criteria for validation of the Convergence Insufficiency Symptom Survey (CISS) did not include fixation disparity (FD); thus, the relationship between CISS score and FD is unknown. This study compared FD and CISS score in a young, healthy graduate student population. Methods: Subjects (n=161) aged 22-42 years, with good acuity OU and no strabismus, completed the CISS and were evaluated for horizontal phoria and FD (Wesson card) at near. Subjects were separated by CISS score into HIGH (≥21) or LOW (<21) groups. Student t-test samples and one-way ANOVA were used for withinand between-group comparisons of mean FD and phoria. Results: Comparison of HIGH vs LOW CISS score groups showed no difference in magnitude of FD for any subgroup. Within the HIGH CISS score group, no difference in means was found for CISS score or magnitude of phoria among the 3 subgroups or for FD magnitude between eso and exo FD subgroups. Within the LOW CISS score group, no difference in ...
The North African Journal of Food and Nutrition Research
Background: The blood pressure (BP)-lowering effect of beetroot is attributed to its high nitrate... more Background: The blood pressure (BP)-lowering effect of beetroot is attributed to its high nitrate concentration, which converts to the vasodilator nitric oxide. Nitric oxide may also mediate ocular aqueous outflow to regulate intraocular pressure (IOP). Aims: We investigated the effect of beetroot juice on IOP and ocular vessel density. Subjects and Methods: With a single-blind, crossover design, 19 healthy young adults participated on 2 days 1 week apart. On Visit 1, baseline IOP, BP, and ocular vessel density (optical coherence tomography angiography, disc, and macula) were measured. Three hours after consumption of 16 ounces of beetroot juice or water (randomly assigned), all measurements were repeated. On Visit 2, baseline and 3-hour post-consumption measurements were assessed, with each subject consuming the drink not ingested on Visit 1. Results: Paired-samples t-test showed 1) no difference in IOP change post-water vs post-beet root juice (P = 0.27), and 2) mean systolic and ...
Background: Inclusion criteria for validation of the Convergence Insufficiency Symptom Survey (CI... more Background: Inclusion criteria for validation of the Convergence Insufficiency Symptom Survey (CISS) did not include fixation disparity (FD); thus, the relationship between CISS score and FD is unknown. This study compared FD and CISS score in a young, healthy graduate student population. Methods: Subjects (n=161) aged 22-42 years, with good acuity OU and no strabismus, completed the CISS and were evaluated for horizontal phoria and FD (Wesson card) at near. Subjects were separated by CISS score into HIGH (≥21) or LOW (<21) groups. Student t-test samples and one-way ANOVA were used for withinand between-group comparisons of mean FD and phoria. Results: Comparison of HIGH vs LOW CISS score groups showed no difference in magnitude of FD for any subgroup. Within the HIGH CISS score group, no difference in means was found for CISS score or magnitude of phoria among the 3 subgroups or for FD magnitude between eso and exo FD subgroups. Within the LOW CISS score group, no difference in ...
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Papers by Patricia Cisarik