Cat.Pt – Portuguese Cataract Outcomes Registry

Several outcomes’ registries have emerged in some countries with the goal of presenting evidence on treatment results related to cataract surgery. The CAT.PT registry was created as a national benchmarking platform for cataract surgery in Portugal.

National registry composed by portuguese public and private Hospitals.

Creation of a cloud platform for structured data collection regarding pre-operative, intra-operative and post-operative variables related to cataract surgery, including case-mix variables, early and late surgical complications and visual outcomes. Additionally, patient-reported outcomes (PROMs) were systematically collected using the CATQUEST-9SF. At the time of analysis this registry included 18125 patients from over 10 instutions.

CDVA was below 20/40 in 82.4%, below 20/200 in 13.0%. Post-operatively, UDVA was above 20/40 in 84.8% and 20/20 in 44.8%; CDVA was above 20/40 in 76.3%, 20/20 range in 93.6%. Mean post-operative refractive error was -0.27D, with a prediction error within 0.5D and 1.0D in 60.4% and 85.4%.A relatvant intra-oeprative difficulty factor was seen in 25.4% of cases. Complications were reported in 1.7% of cases (posterior capsule rupture 1.05%). Pre-operative CATQUEST 9-SF score was -0.14 log (SD: 1.94), which improved to -2.62 log (SD: 1.53) following surgery. In 10.09%, worse scores were observed in the post-operative period. Multifocal IOLs were used in 7.72% and had better visual outcomes (post-operative score of -3.43 log).

We report clinician and patient reported outcomes based in a large national cohort of patients submitted to cataract surgery in multiple public and private hospitals in Portugal. Overall, our results are similarl to other European registries (like the EUREQUO or the swedish Nationella Kataraktregistret), though with a larger use in proportion of premium IOLs. A beneficial effect related to the use of these IOLs was demonstrated.