Pterygium surgery with conjunctival autograft


What does it involve?

When the pterygium causes discomfort to the patient or enlarges its size to the extent that it approaches or occupies the area of the pupil, causing astigmatism or impairing vision, surgery is necessary.

When is it carried out?

Keratitis always requires treatment, which varies depending on the cause.

Prior examination

Comprehensive eye examination.

Before the surgery

After surgery, the patient wears a patch, which is removed within 24 hours. The eye is red and will only require a few weeks to recover.


A local anaesthetic is used. The eye is kept open with a clamp. A microscope is placed in position, and the patient is asked to look at a certain point. The patient is protected by a sterile field, but can breathe and speak normally. The autograft involves placing a small portion of the patient’s conjunctiva into the area where the pterygium excision is to be performed. Absorbable sutures are applied or tissue adhesive (biological glue) is used to eliminate the need for sutures.


Like with all surgery, complications can occur, such as infection (0.05%), loss of transparency of the treated area, thinning of the cornea, foreign body granuloma and hypertrophic conjunctival scars. There is a 10% possibility of the pterygium recurring, if it is highly developed, and can do so even more aggressively, if the surgery has not been performed well. If the pterygium has not invaded the visual axis, the possibilities of immediate surgical success are very high (95%+).

Associated pathologies

Experts performing this treatment

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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