IOL MASTER Advantages
• Precise Measuring: exact measurement of the eye is possible even in cases of high ametropia, pupil size
as well as state of accommodation.
• Non contact Technique: no requirement of local anesthesia, no risk of infection from patient to patient.
• Saves time: axial length, corneal curvature and anterior chamber depth of the patient's eye are measured
on the same instrument saving valuable time. 

PAM :
Gives an estimate of potential vision following cataract surgery. The Potential Acuity Meter (PAM) is a device that is designed to project an eye chart directly onto the retina, in essence bypassing the cloudy lens. For patients with retinal disease, such as age related macular degeneration, the PAM may improve the reliability of anticipated vision following cataract surgery.

SUPER PINHOLE DEVICE
The Super Pinhole device works on a different principle, but may deliver the same result. The patient views a specialized eye chart through a pinhole in an attempt to discover a clearer region in the cataract. Both of these potential acuity measurements may overestimate or underestimate the vision achieved after cataract surgery

The Aberrometer- Measuring Aberrations of the Eye

Ideally, light received by the eye will be properly focused on the retina and images appear clear. In reality, the light is sometimes distorted by imperfections in the cornea and lens. These distortions are called aberrations, and an aberrometer is used to measure them.
Light can be thought of as a collection of lines, or rays. Drawing a line that connects the tip of each ray produces awavefront. A wavefront can be thought of as a picture that represents how perfect the light is.
An aberrometer works by measuring the wavefront as it passes through the eyes. In an eye with no aberrations, the wavefront will be flat, like a piece of paper. In an eye with imperfections, it will be bent and distorted.
The aberrometer will send a low-level laser beam into the eye and measure the reflection, or wavefront.  While the results only take seconds to capture, it takes several minutes for the wavefront map — a picture of the wavefront — to be produced. The wavefront map is unique to each patient. Some compare it to a fingerprint, because no two patients will share the same wavefront map.
Aberrations can be lower order or higher order. Lower-order aberrations are conditions that are well known by most people: astigmatism, nearsightedness and farsightedness, to name a few. The vast majority of people with vision problems will have lower-order aberrations.
Higher-order aberrations are less well known and cause problems such as double vision or blurry vision. Before aberrometry, these were more difficult to treat and were often left undiagnosed. With the wavefront map produced by an aberrometer, both higher- and lower-order aberrations can be easily diagnosed and treated. In addition, by using a wavefront map in refractive surgeries such as LASIK, some higher-order aberrations can be permanently corrected.

Someday, these detailed wavefront measurements may replace conventional eyeglass or contact lens prescriptions, which describe vision problems only in terms of the eye's nearsightedness, farsightedness and astigmatism.

Just as custom (or "wavefront-guided") LASIK has the potential for producing sharper vision than conventional LASIK, glasses and contact lenses made with this advanced technology may also produce better visual clarity than their conventional counterparts.

Caring for the operating microscope

• Keep the microscope in a dry, cool and well-ventilated place to prevent fungus growth on the optics (lenses).
• Every week, clean the optics according to the optical cleaning instructions described in a previous issue.¹
• If fungus growth is detected, clean according to the instructions described in a previous issue.²
• To protect it from dust when not in use, drape a cover over the microscope. Vinyl coverings are preferred because they do not shed lint (like cloth coverings do). However, their use should be avoided in humid environments since they can trap moisture, which increases the risk of fungal growth.
• Wipe down the external surfaces with a damp cloth soaked in hot, soapy water.
• Cover the foot pedal with a clear plastic bag to prevent surgical and cleaning fluids from entering and damaging the electronics. • Lift the foot pedal off the floor when washing the floor.
• Use a voltage stabiliser with the microscope. This will prevent sudden increases in voltage from destroying the bulbs and will ensure that the illumination provided remains constant.
• Before using, test the controls of the foot pedal (the x,y movement, zoom, focus, light on and off).
• Before using, check that the suspension arm can be fixed into position to ensure that it does not fall on the patient.
• Avoid kinking or bending the fibre optic cables.
• When replacing the bulbs, avoid touching them with your fingers. The oil left as fingerprints on the bulb can shorten its life.
• Do not move the microscope while the bulb is still hot because strong vibrations may damage the filament.
• Every six months, clean and oil the wheels and the brakes. Remove any surplus oil when done.

EyeFine – New Autofocus Telescopic Eyeware

EyeFINE is a revolutionary new Low Vision aid. It is an auto focus telescopic system that merges both passive auto focus and active infrared auto focus technology to aid patients with vision loss.
With EyeFINE, many Low Vision patients can read, watch TV, view their computer screens, watch sporting events or religious services and do many other things. EyeFINE’s auto focus technology will instantly focus wherever the patient looks. The wider field, bright image and instant focus make EyeFINE easy to use. Developed at Japan’s Miyazaki Eye Hospital, it works on the same principle as an autofocus digital camera.