[Intraocular lens power in Russian population: distribution analysis]

Area of Science:

• Ophthalmology
• Biomedical Engineering
• Health Systems Management

Background:

• Cataract surgery with intraocular lens (IOL) implantation is a common procedure in Russia, with approximately 470,000 surgeries annually.
• Insufficient understanding of IOL power distribution in the Russian population hinders effective procurement planning.
• Optimizing IOL procurement is crucial for efficient healthcare resource allocation.

Purpose of the Study:

• To analyze the distribution of implanted IOL power in the Russian population.
• To optimize the IOL procurement system based on analyzed data.
• To improve the efficiency of IOL supply chain management.

Main Methods:

• Retrospective analysis of 1009 cataract surgeries performed between 2014-2015.
• Inclusion criteria: age 20-99, no prior refractive surgery, primary IOL implantation, and achieved planned refraction.
• Analysis of IOL power distribution, patient demographics, and procurement system effectiveness (unplanned purchases/exchanges from 2014-2018).

Main Results:

• The distribution of IOL power was non-normal, exhibiting left-sided asymmetry and a peaked shape.
• A weak correlation was found between IOL power and age, with a trend for increased power in patients over 50.
• A procurement planning system based on IOL power distribution reduced unplanned purchases/exchanges from 5-7% to 1-2%.

Conclusions:

• The specific distribution of IOL power is linked to population biometry parameters.
• A scientifically based procurement system enhances efficiency by reducing staff time and costs.
• Optimized procurement systems free up valuable economic and time resources in healthcare settings.