EcologicalEcological cataract surgerycataract surgery

T. Okabe; S. Kobayakawa; T. Tochikubo

We all are no financial interest.

We waste a lot of medical supplies, also too much electricity.

We need to think about our cataract surgery in the view point of ecology.

MethodsMethods

• Save power; Setting up at the lowest level for the illumination of the microscope lamp (2300 lx).

• Surgical microscope, OMS-800 (Topcon, Japan) was used.

• Save energy; Turn off the ceiling light, using the indirect lighting.

• Overall case time, phaco time (total nucleus emulsification time), and complications were compared to a similar size group of cataract cases that were performed with a conventional illumination of the microscope lamp (above 17000 lx).

Results Results ThereThere were no significant difference were no significant difference

between two groupsbetween two groups

Normal group (N=50, above 17000 lx)

The lowest illumination group

(N=74, 2300 lx)

total case time(Avg. min. ±SD)

12.1±3.9 11.5±4.3

Total phaco time (Avg. sec. ±SD)

175.7±81.3 166.3±67.2

complications (-) (-)

No patients complained the dazzle for the microscope lamp in the lowest illumination group.

ConclusionsConclusions• Cataract surgery can safely be performed under the

lowest level for the illumination of the microscope

• Cataract surgery can be performed in the lower illumination more than imaged.