[Ametropia correction with bifocal contact lenses]

Area of Science:

• Ophthalmology
• Optometry
• Materials Science

Context:

• Presbyopia and ametropia are common vision impairments.
• Bifocal contact lenses offer a potential solution for simultaneous distance and near vision correction.
• Technological advancements have enabled the development of diverse bifocal contact lens designs.

Purpose:

• To define indications for prescribing bifocal contact lenses.
• To analyze the technology and specific features of choosing bifocal contact lenses.
• To evaluate the effectiveness of bifocal and multifocal contact lenses in correcting combined ametropia and presbyopia.

Summary:

• Indications and selection criteria for bifocal contact lenses were established.
• The study details the development and fitting of various bifocal lens designs, including segmented and concentric types (soft and rigid).
• Results demonstrate the successful correction of ametropia with presbyopia using these lenses, with concentric designs showing particular promise.

Impact:

• Provides a framework for prescribing and fitting bifocal contact lenses.
• Highlights the potential of concentric bifocal contact lenses for vision correction.
• Contributes to the understanding of managing combined refractive errors with advanced contact lens technology.