Shetty Naren, Shetty Rohit, Artal Pablo, Ranade Reshma, Narasimhan Raghav, Nuijts Rudy M M A, Sinha Roy Abhijit
University Eye Clinic Maastricht, Maastricht University Medical Center (MUMC+), Maastricht, Netherlands.
Department of Cataract Surgery, Narayana Nethralaya Eye Hospital, Bangalore, India.
Sci Rep. 2024 Dec 30;14(1):31934. doi: 10.1038/s41598-024-83387-3.
An induced cylinder and spherical power after implantation with an extended depth of focus (EDOF) and enhanced monofocal intraocular lens (IOL) could improve distance, intermediate (60 cm) and near (40 cm) visual acuity (VA). In this prospective study, forty eyes with Eyhance EDOF IOL (Johnson and Johnson, USA) and 40 eyes with Vivity EDOF IOL (Alcon Laboratories Inc. USA) were included. Induced cylinder (applied to non-dominant eye) in steps of + 0.25D were used and then VA was measured monocularly (only non-dominant eye). Similarly, induced sphere (applied to non-dominant eye) in steps of + 0.25D were used and then VA was measured monocularly (only non-dominant eye). The above methods were repeated for the dominant eye as well. Then, binocular defocus curve for each patient was obtained by inducing optimal sphere and cylinder (one at a time in front of the non-dominant eye only). In both IOL groups, induced cylinder and sphere independently led to significant improvement in near and distance vision (p < 0.05). Induced sphere binocularly caused a greater decrease (~ 0.1 LogMAR) in distance VA compared to induced cylinder but this was not clinically significant. Most patients accepted an induced cylinder of +1.0 to +1.5D in both IOL groups. Induced cylinder and sphere caused a favourable improvement in near and intermediate VA after surgery in both IOL groups without a significant drop in distance VA.
植入具有扩展焦深（EDOF）和增强型单焦点人工晶状体（IOL）后所诱导的柱镜和球镜度数，可改善远、中（60厘米）和近（40厘米）视力（VA）。在这项前瞻性研究中，纳入了40只植入Eyhance EDOF IOL（美国强生公司）的眼睛和40只植入Vivity EDOF IOL（美国爱尔康实验室公司）的眼睛。以+0.25D的步长诱导柱镜（应用于非优势眼），然后单眼测量视力（仅非优势眼）。同样，以+0.25D的步长诱导球镜（应用于非优势眼），然后单眼测量视力（仅非优势眼）。优势眼也重复上述方法。然后，通过诱导最佳球镜和柱镜（每次仅在非优势眼前放置一个），为每位患者获得双眼散焦曲线。在两个IOL组中，诱导的柱镜和球镜分别独立地使近视力和远视力显著改善（p<0.05）。与诱导柱镜相比，双眼诱导球镜导致远视力下降幅度更大（约0.1 LogMAR），但这在临床上并不显著。在两个IOL组中，大多数患者接受的诱导柱镜度数为+1.0至+1.5D。诱导柱镜和球镜在两个IOL组术后均使近视力和中视力得到良好改善，而远视力无显著下降。
