What Are the Effects or Depressants on Your Eyes? Do They Dilate or Constrict, or Both (Depending)?
Question by Akane: What are the effects or Depressants on your eyes? Do they dilate or constrict, or both (depending)?
For a project I need to know the effects depressants have on the eyes. Dilate or constrict. Or do certain types have different effects? Please help :\
Best answer:
Answer by Vena Cava
Im assuming a depressant like alcohol l would constrict the pupils.
Answer by Mathieu
“Depressants” is not a specific group of medications and it is often subject to misinterpretation because individual people define depressants differently. In reality a depressant slows down the CNS by methods like reducing the activity of neurons and reducing the number of firings.
Miosis (constricted eyes, pin point pupils) is very prevalent with opioid analgesics (narcotic pain killers). Examples include Codeine, Morphine, Heroin, Oxycodone, Hydrocodone, Oxymorphone, Hydromorphone, Methadone, Demerol, and Fentanyl. Doriden, a sedative/hypnotic also causes miosis. Opioids don’t really reduce activity (depress) the CNS but they do cause some of the effects true depressants cause like anxiolysis, sedation, and somnolence.
Opioids are often considered depressants but they really are not. Central nervous system (CNS) depressants are benzodiazepines (Valium, Ativan, Xanax), barbiturates (Secobarbital, phenobarbital), “Z” drugs (Ambien, Lunesta, Imovane), chloral hydrate, Miltown (meprobamate), alcohol, and a few other highly uncommon drugs like Quaaludes (methaqualone) and Doriden (Glutethimide). Gamma-Hydroxybutyric acid (GHB) is also a CNS depressant.
Barbiturates and GHB can cause nystagmus (involuntary eye movement “jerky eyes”).
Drugs that cause mydriasis (dilated pupils) are primarily stimulants and also hallucinogens. Amphetamines, cocaine, LSD, MDMA (ecstasy) are good examples.
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