Atropine is a medication that comes in the form of eye drops. This medication has many uses but must be monitored carefully by an eye doctor due to the possibility of side effects.
Atropine is a drop that inhibits the muscles that constrict the pupil and make it smaller. Thus, when atropine is used, the pupil will get much larger if a high dose is used.
Since atropine affects the muscle that would normally constrict the pupil, tasks that require a smaller pupil may be impacted as well.
These tasks include reading at near and restricting the amount of light into the eyes in a bright environment.
Atropine is classified as a cholinergic antagonist medication since the primary action is to inhibit the cholinergic receptors on the iris muscle.
When using atropine, there are several effects which may be noted including a large pupil, blurred vision at near, and redness in the eye.
The primary effect of atropine is to cause a larger pupil. The dose of atropine will determine how much of a change is present.
A low dose of atropine may not affect the pupil size to the point that it is noticeable.
Blurred vision at near is a result of the inability of the eye to constrict at near to focus. Like the pupil size, this effect is highly dependent on the dose of the atropine.
Redness associated with the use of atropine is typically only seen immediately following instillation of the drop.
Like many eye drops, atropine may irritate the eye right after it is put in the eye. Often the redness will go away after a few minutes.
Atropine has a variety of uses for eye care. It can be used for dilating eyes for an eye exam, to relieve pain with eye inflammation, to treat amblyopia, or to prevent the progression of nearsightedness in children.
With these many applications, the dose and concentration of atropine is very important to achieve the correct treatment.
If your eye doctor identifies specific risk factors, they may need to use atropine to help diagnose certain eye conditions.
Atropine can be used in children to assess the retina or if a refraction cannot be determined without dilation.
In cases of severe eye inflammation, atropine can be used to relieve pain and break attachments from the iris to the lens.
By dilating the pupil, the iris is not able to constrict freely, and it will reduce the amount of pain associated with the condition.
Amblyopia is when one or both eyes are not corrected to perfect vision. Atropine can be used in these cases to act as a way to force the amblyopia eye to be used to focus.
By building the strength of the worse seeing eye, this treatment aims to equalize the vision in both eyes.
Myopia, or nearsightedness, is a progressive condition that typically does not stop increasing until the late teens or twenties.
Atropine can be used to help prevent nearsightedness from progressing as much. It is used to help the eye from increasing in length.