Retrobulbar injection; medication (separate procedure, does not include supply of medication)
CPT4 code
Name of the Procedure:
Retrobulbar Injection; Medication
Commonly known as: Retrobulbar Block
Summary
A retrobulbar injection involves injecting medication directly into the retrobulbar space, located behind the eyeball. This procedure is primarily used for administering anesthesia or medication to the eye.
Purpose
The primary purpose of a retrobulbar injection is to deliver anesthesia to the eye and surrounding area. It is often performed before eye surgeries, such as cataract removal, to ensure the patient feels no pain during the operation. It may also be used to treat certain ocular conditions by delivering medication directly to the affected area.
Indications
- Severe eye pain
- Need for anesthesia before eye surgery (e.g., cataract surgery, retinal procedures)
- Treatment of conditions like intraocular inflammation
- Diagnostic procedures requiring eye immobilization
Preparation
- Patients may be asked to fast for several hours before the procedure.
- Review of current medications and potential adjustments or cessation.
- Basic pre-procedure eye examination and possibly imaging tests.
- Discussion about allergies, especially to anesthetics.
Procedure Description
- The patient is positioned comfortably, usually lying down.
- Local anesthetic eye drops are applied to numb the surface.
- A fine needle is carefully inserted into the retrobulbar space behind the eyeball.
- The necessary medication is injected slowly and carefully.
- The whole procedure is performed under sterile conditions to minimize infection risk.
Tools, Equipment, Anesthesia
- Sterile syringe and needle
- Local anesthetic eye drops
- Medication for injection (anesthetic or therapeutic)
- Sterile gloves and antiseptic solutions
Duration
The procedure typically takes around 10-15 minutes.
Setting
Retrobulbar injections are generally performed in an outpatient clinic or ophthalmology center.
Personnel
- Ophthalmologist or trained anesthesiologist
- Nurse or medical assistant
Risks and Complications
Common Risks
- Minor bleeding or bruising at the injection site
- Temporary blurred vision ##### Rare Risks
- Infection
- Accidental injury to the eye or optic nerve
- Increased intraocular pressure
- Allergic reaction to medication
Benefits
- Effective pain management or anesthesia during eye surgeries
- Direct delivery of medication to the eye, improving treatment efficacy
- Typically, immediate relief for diagnostic purposes or treatment
Recovery
- Patients should rest for a short period post-procedure.
- Avoid rubbing or touching the eye.
- Follow specific instructions regarding eye care and use of prescribed eye drops.
- Typical recovery time is brief, but any unusual symptoms should prompt a visit to the doctor.
Alternatives
- Topical anesthesia (eye drops)
- General anesthesia, which involves more risks and longer recovery time
- Sub-Tenon’s anesthesia—another form of local anesthetic for eye surgeries
Patient Experience
- Mild discomfort or pressure during the injection.
- Post-procedure, the eye may feel numb or heavy.
- Any residual pain or discomfort can be managed with prescribed medications.
- Patients are generally monitored for a short period post-procedure before being allowed to go home.