PlusOptix Offers Easy, Reliable Vision Screening from 6 Months
Amblyopia is a deterioration in vision, possibly leading to permanent vision loss that can not be corrected with lenses or spectacles. It is caused by untreated vision disorders such as refractive error, strabismus and eye disease.
Studies throughout industrialized countries indicate that 25 % of pre-school children have undetected vision disorders. This is not surprising because visual acuity tests and monocular auto refractor measurements are incapable of detecting anisometropia, i.e. different refractive error in both eyes, reliably. 80 % of information attained by children during their first 12 years is sight related. Vision disorders and subsequent amblyopia inhibit achievements at school, in sports and reduce road safety awareness.
Good vision is extremely important throughout our lifetime. Adults still gather 70 % of all information through their eyes. The earlier vision disorders are detected and treated, the easier it is to attain normal vision and prevent amblyopia. Ideally vision disorders should be detected and treated before the age of 2.
The plusOptiX A09 is a binocular hand-held auto refractor that detects refractive error, as well as anisometropia, easily and reliably from 6 months onwards. The measuring principle is based on eccentric photo-retinoscopy. Infrared light is projected through the pupils onto the retina. Depending on the refractive error the reflected light forms a specific brightness pattern within the pupil. The spherical refraction is calculated based on this crescent pattern. To determine cylinder and axis the same measurement is repeated in three meridians.
In combination with a Cover-Test and a Stereo-Lang-Test you can determine the need of a comprehensive eye exam without dilating the eyes. The measurement from the Plusoptix A09 provides a valuable starting point should additional retinoscopy be required.
The plusOptiX S09 offers screening software for use with infants as young as 6 months to detect the risk of developing amblyopia. Referral criteria are entered for different age groups and parameters. The software automatically compares measurement results with referral criteria and provides a “Pass” or “Refer” result. Sensitivity and Specificity depend on the referral criteria used.