This was a prospective randomised study comparing visual acuity (at distance, intermediate and near), depth of focus and quality of vision in paediatric patients undergoing cataract surgery with implantation of a new monofocal Tecnis Eyhance ICB00 intraocular lens (IOL) vs implantation of a standard monofocal Tecnis ZCB00 IOL. The trial included 45 eyes and 32 patients. Group 1 (Eyhance) had 22 eyes of 18 patients and group 2 (standard) had 23 eyes of 18 patients. Both groups were matched for sex. Patients were slightly older in the standard group; 10 ±2.5 vs 8.7 ±2.5 years. Surgery was uneventful for all patients. There was mild posterior capsule opacification in 8 patients in group 1 and 7 patients in group 2. None needed YAG laser within a 3-month follow-up period. Mean postoperative subjective spherical equivalent was -0.43 ±0.89D in group 1 and -0.29 ±0.61D in group 2. Mean corrected distance visual acuity was 0.18logMAR and 0.15logMAR for groups 1 and 2. At -1.50D of defocus, mean visual acuity was 0.31 and 0.39logMAR for groups 1 and 2; significantly different. At -3.00D of defocus, mean visual acuity was 0.46 and 0.58logMAR for groups 1 and 2; again significantly different. The authors conclude that Tecnis Enhance is safe and effective for paediatric cataract management, providing the same distance visual acuity as standard IOLs, but with better visual acuity at defocus levels and greater depth of focus without affecting contrast sensitivity.
Randomised controlled trial of Tecnis intraocular lenses for paediatric cataract
Reviewed by Fiona Rowe
Standard monofocal intraocular lenses vs enhanced monofocal intraocular lenses for children 6 to 13 years old with pediatric cataract.
CONTRIBUTOR
Fiona Rowe (Prof)
Institute of Population Health, University of Liverpool, UK.
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