The results of diode Laser treatment for posterior retinopathy of prematures Piozzi E. Mazza M. Del Longo A. Niguarda Hospital MILAN S.C. Pediatric Ophthalmology Chief E. Piozzi MD

Laser photocoagulation is Laser photocoagulation is the treatment of choice for treshold retinopathy of prematurity (ROP) the treatment of choice for treshold retinopathy of prematurity (ROP)

LASER treatment We treated 50 eyes of 25 babies with diode Laser (810 nµ) or green Laser (532 nµ) from July 2000 to October We treated 50 eyes of 25 babies with diode Laser (810 nµ) or green Laser (532 nµ) from July 2000 to October 2005.

44 eyes ROP stage 2-3 plus 6 eyes ROP zone I (AP-ROP) 6 eyes ROP zone I (AP-ROP) The International Classification of Retinopathy of Prematurity Revisited An International Committee for the Classification of Retinopathy of Prematurity* Arch Ophthalmol. 2005;123:

ROP plus

Different from classic ROP AP-ROP

AP-ROP  Zone I  Flat network neovascularization  Naked shunts  Early plus  No stages  Rapidly progressive

AP-ROP Plus is indication to laser

Laser Treatment Parameters: Power mW Duration sec. Number spots

Laser treatment The pattern of Laser photocoagulation The pattern of Laser photocoagulation burns to the avascular retina is : burns to the avascular retina is : -confluent or -confluent or -near confluent -near confluent to avoid skip areas. to avoid skip areas.

Laser treatment Laser photocoagulation was performed under general anesthesia Laser photocoagulation was performed under general anesthesia

NGAWSTAGEEVOLUTION PG25780 OO st 3 plus OS 4 A RS OO st 2 zona II plus FAVORABLE PL plus FAVORABLE MB plus zona II-III FAVORABLE NV plus FAVORABLE PP plus zona II FAVORABLE PD plus zona II FAVORABLE TD plus zona II-II FAVORABLE CC23610AP-Rop OD 4 A-OS 5 GM26750AP-ROPFAVORABLE LY plus FAVORABLE PM25730 FAVORABLE PR26750 FAVORABLE GC26720 FAVORABLE CA zona II plus FAVORABLE GA OD 2 plus OS 3 plus FAVORABLE SD plus zona 1 OD 4 A-OS 5 DS plus zona 1 FAVORABLE VN plus zona 2 FAVORABLE ZF plus OD 4 A GA plus zona II FAVORABLE FM plus zona I-II FAVORABLE CM25760AP-ROP OO 5 SA plus FAVORABLE

Only two eyes (4%) needed Supplemental Laser treatment. Only two eyes (4%) needed Supplemental Laser treatment.

RESULTS 42 favorable outcome (84%) 4 eyes progress to stage 4 A 4 eyes progress to stage 5

RESULTS 6 eyes AP-Rop 2 favorable outcome (34%) 4 unfavorable (66%)

CONCLUSIONS Laser photocoagulation is associated with a good anatomic outcome. Laser photocoagulation is associated with a good anatomic outcome. ROP more posterior is difficult to treat successfully with ablative therapy. ROP more posterior is difficult to treat successfully with ablative therapy.

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