The GDx Nerve Fibre Analyser test is a revolutionary test that can detect glaucoma before any vision loss has occurred. It uses an invisible, low powered laser to scan the nerve fibre layer. An abnormally thin nerve fibre layer may indicate that glaucoma is present.

Retinal, or fundus, photography is used to document the health of the eye and sometimes diagnoses certain eye conditions. The high powered lenses of the retina camera focus on the structures of the back of the eye allowing the optometrist to take pictures of the optic nerve, macular, retina and its blood vessels.

A tonometer is used to measure eye pressure (glaucoma). It works by allowing a gentle puff of air on to the front of your eye which briefly changes the shape of the eye. The tonometer measures how long it takes your eye to change to a calibrated shape. This then allows the tonometer to work out your pressure.

The Humphrey Visual Field Screener is the gold standard of visual field screening used by eye hospitals. The Screener measures how much side vision you have. You rest your chin on a chin rest and press a button whenever you see a light flashing. A chart is printed out of your results once the test has been completed. Field loss can be caused by Chronic Glaucoma which is the most common form of field loss. The test can also sometimes detect more serious conditions such as pituitary tumours.

The FDT Visual Fields Test is a visual field screener used to carry out a check on your peripheral vision.

You must keep your eye in one place the whole time and when you see a shimmer of light you press a button. The test then charts your performance and a printout of your results is produced.

The corneal analyzer takes a three-dimensional map of the curvature of the cornea and is useful during both the design and fitting stages of contact lenses and at follow-up visits to assess the ongoing fitting of the contact lenses. It measures the position and height of several thousand points across the entire cornea which is critical for determining the quality of vision.

Corneal topography is also instrumental in diagnosing and monitoring the progression of keratoconus.

A slit lamp is used to examine the front surface of the eye, contact lenses and to check for corneal abrasions and infections like conjunctivitis.