Ophthalmic Prescription Lens Making

Ophthalmic lens making is a crucial aspect of optometry, involving the design, fabrication, and verification of prescription lenses based on a patient's refractive error. The process ensures that the lenses correct vision accurately while maintaining comfort and optimal optical performance. 1. Steps in Ophthalmic Prescription Lens Making A. Prescription Interpretation The optometrist provides a prescription based on refraction results. The prescription includes: Sphere (SPH): Power to correct myopia (-) or hyperopia (+). Cylinder (CYL): Power to correct astigmatism. Axis: The orientation of the cylindrical power (0°-180°). Addition (ADD): For near vision correction (presbyopia). Prism & Base Direction: If needed for binocular vision correction. B. Lens Selection Types of Lenses: Single Vision Lenses: Correct one field of vision (distance, near, or intermediate). Bifocal Lenses: Have two different power zones (near and distance). Progressive Lenses (PALs): Provide a gradual transition betwe…