Vol. 5, Issue 1, Part A (2023)

Contact lenses are thin lenses positioned directly at the surface of the eyes. Contact lenses are ocular prosthetic gadgets used by humans worldwide, and they may be worn to correct vision for cosmetic and therapeutic reason. Humans pick to wear contact lenses for lots reasons. Aesthetics and cosmetics are the principle motivating elements for folks who want to avoid wearing glasses or to trade the advent or color of their eyes. Others put on contact lenses for functional or optical motives. When compared with spectacles, contact lenses commonly offer better peripheral vision and do now not acquire moisture (from rain, snow, condensation, and many others.) or perspiration. This can cause them to ideal for sports and other out of doors activities. Contact lens wearers can also put on sun shades, goggles, or different eyewear of their choice while not having to healthy them with prescription lenses or worry about compatibility with glasses. Additionally, there are conditions inclusive of keratoconus and aniseikonia which might be commonly corrected higher with contact lenses than with glasses. Correction of presbyopia (a need for a reading prescription specific from the prescription wanted for distance) provides a further challenge in the becoming of contact lenses. Predominant techniques exist: multifocal lenses and mono vision.