Diagnostic Instruments

State-of-the-art equipment to provide the very best care for our patients.

The Optos Daytona

The Optos is the latest Ophthalmic diagnostictechnology which enables the eye carepractitioner to visualize almost the entireretina without the need for dilating eye drops.

Optical Coherent Tomograph (OCT)

This instrument helps in the diagnosis of many retinal conditions. Examples are Glaucoma, Macular Degeneration and Retinal Detachments.

Auto Refractometer

This is sometimes used, as a starting point. The prescription obtained from this instrument should not be used to order a pair of spectacles, although there are some exceptions to this rule.

Retinal Camera (Fundus Camera)

This instrument takes a picture of the retina. Many retinal conditions can be observed from the picture, eg: Glaucoma, Macular Degeneration, Diabetic Retinopathy, etc. It is invaluable as a documentation tool as well and makes it easy to follow patients with progressive diseases and to determine if their disease is in fact progressing.


This instrument is used to provide our patients with a comfortable testing environment as well as helping to accurately determine your visual status. Trial frames are heavy and uncomfortable.

Slit Lamp Biomicroscope

This microscope is specially adapted to observe the Cornea and other structures of the eye. It is used to check the cornea before contact lenses are prescribed to ensure that they are no contraindications to contact lens use. It is also used to check your cornea after contact lens use to ensure that the eyes are free from any contact lens complications. It is therefore important that you visit your contact lens practitioner at least every six months for after care visits.

Visual Field Analyser

This instrument is used to check your peripheral vision. During a vision test, only your straight ahead vision is tested. If an abnormal results is seen, further investigations must be carried out to determine the course. Many conditions will produce abnormal results, eg: Glaucoma (only affects peripheral vision in its early stages, leaving normal central vision), Brain Tumors, etc.


This is an essential tool for the practice of Orthokeratology and to produce custom made Gas Permeable Contact lenses for abnormally shaped corneas. The instrument produces a plot of your cornea describing the shape of your cornea extremely accurately. It is now possible to match the back curve of the contact lens to that of your cornea producing a lens of optimumt, with the Topograph, Special software and an elaborate manufacturing process. This instrument will also pick up abnormally shaped corneas. Example – Keratoconus

Map produced by the Corneal Topograph

The area coloured in red is steep and buldges out while the blue area is at. This condition is called Keratoconus. Vision will be distorted and reduced. Unfortunately, spectacle lenses or soft contact lenses will not clear the distortion. However, Rigid Gas Pearmeable lenses will.