Purpose: To study the effect of cataract surgery with intraocular lens (IOL) on frequency doubling perimetry (FDP). Methods: Patients aged 40 years or above seen at our outpatient clinic with no ocular pathology except for visually significant cataract and visual acuity 6/24 or better were eligible. They underwent FDP before and 4 to 6 weeks after cataract surgery with IOL. Results: Screening test: Mean scores by three different scoring methods were 1.82 (3.21), 2.80 (5.54), 4.18 (9.18) before and 0.22 (0.51), 0.26 (0.63), 0.26 (0.69) after surgery (p = 0.002 0.001, < 0.0001). Threshold test: Mean deviation (MD) and pattern standard deviation (PSD) were -5.23 (3.08) and 5.15 (2.78) before and 2.94 (2.49) (p < 0.0001) and 5.21 (1.780) (p = 0.63) after surgery. Conclusions: The screening test should be interpreted cautiously in the presence of cataract. On threshold testing, cataract surgery causes significant decrease in MD but no change in PSD.
Bibliographical noteAn erratum exists for this article in Current Eye Research, vol. 30, issue 11, p. 1033. DOI: 10.1080/02713680500434520
- cataract surgery
- frequency doubling perimetry