Contradictions
of Intravitreal injection
-
Recent history of adverse thromboembolic events such as stroke
-
Patients have an acute infection of the eye (except in the case of endophthalmitis injection to treat endophthalmitis)
-
Patients with a history of allergy to the ingredients of the drug
-
Pregnant and breastfeeding women
-
Depending on the type of intravitreal medications, there will be specific contraindications
-
Anti-inflammatory: contraindicated in patients with uncorrected intraocular pressure
-
Anti-angiogenic: contraindicated in patients with a history of cardiovascular disease
Intravitreal injection
An intravitreal injection is a shot of medicine into the eye. During this procedure, doctors will inject medicine into the vitreous, near the retina at the back of the eye. The medicine can treat certain eye problems and help protect your vision. At the Japan Eye Center, this method is most often used for the treatment of many retinal diseases.
​
COMMON INTRAVITREAL MEDICATIONS
-
Antibiotic
-
Anti-inflammatory
-
Antiangiogenic drugs
INSTRUCTIONS BEFORE
INTRAVITREAL INJECTION
-
Do not drive or operate machinery due to the effects of the anesthetic gel or drops that will be applied to the eyes on the day of injection
-
Do not apply eye makeup on the day of the injection
-
Do not drink alcohol on the day of the injection
-
If you are using contact lenses, please stop wearing them at least 3 days before the intravitreal injection.
-
Eat normally and continue using daily prescription medications if any.
POST PROCEDURE
FFECTS
NON- DANGEROUS EFFECTS
-
Mild irritation: will disappear after 1 hour
-
Temporary blurred vision: vision before injection will regain in the following day
-
Subconjunctival hemorrhage: on the surface of the eye where the needle enters. This usually heals within 2-3 weeks
-
Bubble in your vision: should resolve in 3-5 days
DANGEROUS EFFECTS
Patients need to contact your retina specialist right away if they experience the following signs and symptoms of complications:
​
-
Eye pain or discomfort that is not disappeared after 1-2 hours
-
Significant decrease in vision
-
Increased sensitivity to light
-
Increased floaters after the first day
-
Red eyes with discharge
-
Depending on the patient's condition and response to the medication, the medication may be effective after 1 week or longer. The treatment effect can only be maintained and reached the optimal level when the patients follow the treatment schedule. The schedule consists of multiple injections depending on the disease being treated.