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The subconjunctival injection 

This article contains the information about the conditions, results, risks and limitations of a subconjunctival injection.

The injection

It is performed on the patient, while installed on the back, in a sterile environment, under surgical microscope.

Anaesthesia: it is done by an injection of anaesthetic in the site of injection.

Technique: Chronologically, the steps of the procedure are: Disinfection, anaesthesia by an injection in the area of the injection, injection in the sub conjunctival or sub tenonian space.

The total duration of presence in the clinic is approximately 30 minutes. The time spent in the operation theatre is 15 minutes of which 5 minutes occur under the operation microscope.

Usual postoperative course

The postoperative course is simple and lasts some days: foreign body sensation, redness of the white area of the eye.

Complications of the operation
Although it is perfectly standardized and followed by good results, this type of operation is no exception to the general rule that there is no surgery without risk. It is not possible for your eye doctor ophthalmologist to ensure formally the success of an intervention.
Patient should be aware that

During the anaesthesia and sometimes despite the anaesthesia, during the operation itself, there is a hazard of discomfort and, although very rarely, even pain. This risk depends on the patient’s responsiveness to the anaesthetic molecule. It is unpredictable.

In any local anaesthesia and all surgical procedures, there is a hazard of local complications, bleeding and infection and general intolerance that can lead to a severe shock. The risk of these complications is unpredictable. It is so exceptional that it is impossible to quantify.

To what must the patient be careful to, before, during and after the operation?


Any make-up should be removed. The hair and face, especially the eyelids and eyelashes, and the whole body should be washed with shampoo or soap then rinsed generously. The same thorough washing and rinsing should be repeated then the whole body should be dried with a clean towel. The sleep should be done with clean nightclothes and bedding. It is advisable not to take any Aspirin and other blood fluidifying drugs the day before and the day of the operation. Aspirin and other blood fluidifying drugs may be taken the day after the operation. The matter of Aspirin and other blood fluidifying drug should be discussed with the patient’s General Practioner.


On the morning of the day of the operation, upon awakening, any make-up residues should be re-removed carefully. The thorough double shower, as described above, should be repeated. Clean underwear and clothes should be worn. The breakfast and regular medications, except Aspirin and other blood fluidifying drugs, should be taken. All regularly taken medications should be brought to the Eye Clinic.

During the operation, the patient is requested to keep calm and strictly follow the instructions given by the Eye Doctor.

After the operation, the Eye Doctor prescribes eye drops or eye ointment, to be put on the operated eye, usually during 7 days.

The presence of an aiding person is advised during the remainder day of the operation.

A little bleeding and swelling (haematoma) of the eyelid should not worry nor keep the patient from following the treatment.

In case of pain, one to three Paracetamol tablets per day, for up to three days, may be taken.

It is, as always, strongly advised not to rub the eyes.

If a protection is placed on the eye, it should be kept throughout night sleep or nap. The plasters should be changed after each application of ointment. The plasters stick best on a skin previously washed with soap or a gently rubbed with an alcoholic perfume.

Visual activities, professional and of leisure, are allowed as long as dirt and dust do not reach the eye.

Wearing sunglasses is, as always, advisable when exposed to sunlight.

The patient should contact the eye doctor immediately in case of

Breathing difficulties.

General malaise.


Persistent bleeding.

Persistent strong pain, lasting more than 2 hours


Eye Doctor in Playa De Las Américas.