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different surgical techniques


invisible post-operative incisions

What does it involve?

Thyroid orbitopathy causes the volume of the muscles and fat behind the eye to thicken and increase. Exophthalmos occurs, because the orbit is a rigid space and the muscles and fat move the eye forward in search of space. During this process, the eyelids and strabismus also retract. Orbital decompression surgery for exophthalmos involves opening up space in the orbit by means of creating windows in the bone. This provides the muscles and fat with more space and enables the eye to return to its correct position. Once the exophthalmos problem has been solved, any strabismus and eyelid retraction can be corrected.

When is it carried out?

Surgery is indicated for all exophthalmos cases, but, in cases where vision is seriously threatened by pressure in the orbit, it must be performed as soon as possible.

Prior examination

A comprehensive eye and eyelid examination, as well as a CAT scan of the orbits.

Before the surgery

Patients should not take anticoagulants or aspirin before surgery. It is essential for patients to stop smoking.


The procedure is performed under local anaesthesia and sedation or under general anaesthesia. It is possible to make a bilateral decompression in one single intervention.


Surgery always seeks to achieve symmetry between both eyes, but there is a risk of hyper or hypocorrection. After decompression, some eyelid malposition (retraction or ptosis) can occur, as well as double vision, which, in some cases, is temporary and, in others, not. Malposition and strabismus can be corrected later.

Associated pathologies

IMO Institute of Ocular Microsurgery

Josep María Lladó, 3
08035 Barcelona
Phone: (+34) 934 000 700
See map on Google Maps

By car

GPS navigator coordinates:
41º 24’ 38” N – 02º 07’ 29” E

Exit 7 of the Ronda de Dalt (mountain side). The clinic has a car park with more than 200 parking spaces.

By bus

Autobus H2: Rotonda de Bellesguard, parada 1540

Autobus 196: Josep Maria Lladó-Bellesguard, parada 3191

Autobuses H2, 123, 196: Ronda de Dalt – Bellesguard, parada 0071

IMO Madrid

C/ Valle de Pinares Llanos, 3
28035 Madrid
Phone: (+34) 910 783 783
See map in Google Maps

Public transport

Metro Lacoma (líne 7)

  • Lines 49 & 64, stop “Senda del Infante”
  • Line N21, stop “Metro Lacoma”


Patient care:
Monday to Friday, 8 a.m. to 8 p.m.

IMO Andorra

Av. de les Nacions Unides, 17
AD700 Escaldes-Engordany, Andorra
Phone: (+376) 688 55 44
See map in Google Maps

IMO Manresa

C/ Carrasco i Formiguera, 33 (Baixos)
08242 – Manresa
Tel: (+34) 938 749 160
See map in Google Maps

Public transport

FGC. Line R5 & R50 direction Manresa. Station/Stop: Baixador de Manresa


Monday to Friday, 08:30 A.M – 13:30 PM / 15:00 PM – 20:00 PM

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