A study published in the International Journal of Ophthalmology noticed that young and middle-aged patients with glaucoma with binocular visible area loss suffered from an extended delay of response in a driving simulation test.
The study included 19 patients with glaucoma who were recruited from the Glaucoma Clinic Database of the Eye and ENT Hospital of Fudan University in Shanghai, China between May 2013 and April 2018. Nine patients had passed the binocular Esterman visual area check, whereas 10 had failed the test. Patients with glaucoma were age-matched with 10 healthy controls. All participants were 45 years or younger and had a valid driver’s license.
All participants underwent a general eye examination, together with a binocular visible acuity test, slit-lamp biomicroscopy, and ophthalmoscopy. A driving simulation test was designed as a frequency-based evaluation of a lane-keeping process. The test simulated steering a virtual vehicle down a straight lane, at the pace of 43.2 km per hour, over a textured ground plane whereas dealing with crosswind perturbation to the automobile’s course of motion. Researchers calculated whole efficiency error, control-response amplitude, and delay.
The group that failed the Esterman visual area test showed the longest delay of control-response among the three groups (P=0.02). This group also had considerably worse visible function (P<0.01). Delay in the lane-keeping process was considerably related to the inferior field of better-eye (P=0.004) and built-in visual area (P=0.002).
“The information provides the first step towards counseling [patients with] glaucoma in China to pay attention to their driving safety,” the researchers concluded.