Contact lenses

All contact lenses that are in the Egyptian market are present in eye care center, either clear transparent contact lenses or colored CL , with many options as Daily CL , Monthly CL & yearly CL, with a very active and helpful optician that can teach you a lot about CL specially how to take care of them .

People choose to wear contact lens for many reasons

Aesthetics and cosmetics are main motivating factors for people who want to avoid wearing glasses or to change the appearance or color of their eyes.

Others wear them for functional or optical reasons. When compared with spectacles, contact lenses typically provide better peripheral vision, and do not collect moisture (from rain, snow, condensation, etc.) or perspiration. This can make them preferable for sports and other outdoor activities.

The wearers can also wear sunglasses, goggles, or other eyewear of their choice without having to fit them with prescription lenses or worry about compatibility with glasses. Additionally, there are conditions such as keratoconus and aniseikonia that are typically corrected better with contact lenses than with glasses.

Optical aniseikonia due to anisometropia can be corrected by spectacles, contact lenses or refractive corneal surgeries.

Spectacle correction is done by changing the optical magnification properties of the auxiliary optics (corrective lenses). The optical magnification properties of spectacle lenses can be adjusted by changing parameters like the base curve, vertex distance, and center thickness. Magnification size matched lenses that are used to correct aniseikonia are known as iseikonic lenses.

Contact lenses may also provide less difference in retinal image size.^[4] Wider and better field of vision is another benefit of contact lens use. The difference in magnification can also be eliminated by a combination of contact lenses and glasses (creating a weak telescope system). The optimum design solution will depend on different parameters like cost, cosmetic implications, and if the patient can tolerate wearing a contact lens.

For reducing aniseikonia, similar to contact lens correction, optical image size difference will be reduced in refractive surgeries also.