Which vision disorder is characterized by pressure on the optic nerve from elevated Intraocular pressure (IOP)?

A. Alkalosis and insomnia:

Alkalosis does not trigger sickling; acidosis (low pH) is more harmful. Insomnia alone is not a direct trigger.

B. Reduced stress and warm environmental temperature:

Reduced stress and warmth help prevent crises rather than cause them.

C. Acidosis and dehydration:

Acidosis promotes sickling of RBCs, and dehydration increases blood viscosity, both triggering vaso-occlusive crises.

D. High fat diet and hyperoxia:

A high-fat diet is linked to cardiovascular disease, and hyperoxia (excess oxygen) is not a trigger for sickling.

A. There is no known safe level of alcohol use during pregnancy or when trying to get pregnant:

Research has shown that any alcohol consumption during pregnancy can potentially cause fetal alcohol spectrum disorders (FASD). There is no safe amount.

B. Alcohol prior to conception cannot impact the fetus:

Alcohol use prior to conception can affect fertility and early embryonic development, especially since many pregnancies are unrecognized during early stages.

C. Alcohol exposure is most dangerous during the last trimester:

All trimesters are critical, but the first trimester is often considered the most vulnerable for teratogenic effects, especially for organ formation.

D. Fetal alcohol exposure increases the likelihood of twins or other multiples:

Alcohol exposure does not increase the likelihood of multiple births; it causes developmental abnormalities.