A normal eye functions by letting light in through the cornea and the lens, which then falls on the retina at the back of the eye. The cornea accounts for most of the focusing power of the eye by refracting light into the eye. The lens, by varying its shape and further refracting the light, is responsible for fine tuning the focusing range such as focusing on near or far subjects. A highly nearsighted or myopic eye may be to extreme that a patient may not be a candidate for LASIK. Clear lens extraction, also known as ReLEx surgery may be performed.
A multifocal lens implant is a type of lens implant that reduces the need for glasses as compared to a single focus lens implant. A single focus implant provides you with ideal clarity till some particular distance but you require glasses to change focus. By getting a multifocal lens implant, you can focus on near and far objects simultaneously without the need of glasses to change focus.
Cataract surgeries have come a long way from being a major procedure and have become a simple outpatient surgery today. The recovery is no longer prolonged and the vision is recovered almost immediately after the surgery. One of the remarkable innovations in this stitchless surgery has been multifocal lens implant.
It is unusual for younger patients to experience vision changes from cataracts. One of the lesser known causes is Hyperferritinemia cataract syndrome, a genetic disorder that is considered extremely rare. This disorder results in early onset of cataracts and is associated with constantly elevated blood plasma and ferritin levels. Ferritin is utilized as the indicator of our iron stores in the body. It is a protein that binds to iron. Cataract is the only known complication of this disorder. It is believed that hyperferritinemia cataract syndrome (HCS) is a result of ferritin light chain or FTL gene mutation, which is inherited as an autosomal dominant trait.