Refractive Lens Exchange

Intra-ocular Lens Implant

The Crystalline Lens can be removed and a new artificial lens implant of the appropriate power can be inserted to replace it to correct refractive error. Lens implants have been inserted into eyes with excellent long term safety since the 1940's. Modern computerised scanning and surgery technique allow accurate surgical outcomes. Current lens implants can correct myopia, hyperopia, astigmatism and presbyopia.

Refractive lens exchange (RLE) is a good option when a patient is at an age that require reading correction (presbyopia). Younger patients have other surgical options which can preserve the focusing ability of the crystalline lens (accommodation)

Refractive lens exchange - Zeiss 839 trifocal IOL, implantation location, near focus distance vs performance

Multifocal lens implants refractive lens exchange provides spectacle free distance, intermediate and near vision to patients who otherwise need multifocal glasses. With current technology, this form of multifocal vision is the closest match to the vision in a younger eye before the onset of presbyopia.

Lens Exchange Procedure

This short procedure has quick recovery and it is the most commonly performed elective surgery in the western world. Most of the time the same lens exchange procedure is performed for the treatment of vision blurring cataracts. Increasingly, this procedure is used for refractive error correction. Once this operation is performed the patient will not develop a lens cataract in the future unlike other refractive treatments.

It is possible to have this lens implantation surgery under general anaesthesia. Vision recovery from this painless procedure only takes several days. 

LASER Lens Surgery System 

Laser lens implant surgery system is also available for improved surgical accuracy. Laser lens system is a premium option available to improve precision of several critical steps in lens implant surgery to ensure the best outcome and comfort.  The laser procedure is performed just prior to refractive lens exchange surgery within the same hospital visit.  

Femtosecond Laser Lens Surgery System performing lens division

Perth Eye Hospital - Perth's Premiere Eye Surgery Facility

You will have your lens implant surgery at Perth Eye hospital. Perth Eye Hospital is Perth's only certified eye hospital. You can be confident with your refractive lens exchange surgery at Perth Eye Hospital since this ultra-modern facility is one of the largest eye surgery centres in Perth for over 20 years.

Perth Eye Hospital - showing reception and waiting areas

Refractive lens exchange surgery is a very short comfortable local anaesthetic procedure performed in an operating theatre. Patients are only expected to be in the hospital for several hours

Accurate Surgery begins with precise measurements in the clinic

Aculase Clinic BannerZeiss IOL Master is an automated non-contact laser biometer which measures the length of the eye, curvature of the cornea and other parameters. Modern biometry is performed with laser interferometry. Laser measurements are vastly superior to ultrasound measurements which was the standard not so long ago. IOL Biometry is a set of eye measurement test and calculation that predicts the power of the lens implant required for each patient. We have the latest bio-scanners in our clinic to ensure the most accurate results.  

We also use a Wavelight Oculyser II to improve the accuracy of corneal curvature measurements.  This instrument is not commonly found in most eye clinics as it's mainly used to precisely measure the shape of cornea for Laser corneal eye surgery targeting.  

In some cases we also use an OCT (optical coherent tomography) laser scanner to detect any abnormalities in the retina prior to surgery.  An OCT is similar to a CT scan for the eye but only laser light is used (no xray).  Cross sectional scans of the eye and fundus photographs are taken at the same time to allow diagnosis of subtle retinal problems. Undetected abnormal shape in the retina can drastically reduce surgical accuracy and safety.

Using all these data, our software performs the necessary calculations to custom derive the required lens power for each patient.  Ray-tracing software calculation is used in cases with astigmatism and patients who previously have had laser eye surgery.

All these tests are quick and painless.  They are performed routinely before your consultation at our state of the art clinic.  To find out more about lens implant surgery in Perth Eye Hospital or to book a consultation at our Nedlands clinic, call us today on (08) 9388 1828