Testimony from an eye expert when involved in a motorcycle accident can be the deciding factor in the judge's and or jury's eyes. Visibility at the accident site, glare from street lights, cars, and construction project lights, and the acuity of eyesight from the other driver involved can be fully exploited by an expert in ophthalmology.

Macular degeneration, glaucoma, cataracts and other eye conditions effect mostly elderly drivers, however there are other eye conditions that can affect the vision of drivers no matter how old or young. The various types of vision problems have their own affects on the ability to operate a motor vehicle. The affects of glaucoma tend to drastically impair the peripheral vision, while macular degeneration has an affect on the ability to see straight ahead clearly. The fact that many drivers might have a combination of eye ailments which could impair the ability to operate a vehicle is well known. Consulting an eye expert about whether an underlying eye condition might have been a cause in the accident, would be beneficial.

Optical correction is usually stated on driver's licenses in most states. Optical affects can include astigmatism, myopia, and hyperopia. These eye conditions may have a severe affect on vision, especially judging distances correctly. If one is required by law to wear corrective lenses and is not complying or their prescription is invalid/out of date, then having an eye specialist would be very important in determining issues relating to causation and visibility.

When considering what might have caused the accident, one must look at all factors; road signs, signals, traffic lights, road construction, etc. Having a qualified expert objectively studying and interpreting the scene of the accident can be of great importance to the case. The experts assigned to reconstruct the accident could use a vision expert’s information to study how the accident developed.

Medications being taken by motorists that could affect their vision are quite common. The side effects from said medications may slow down reaction time, impair vision, cause dizziness and host a myriad of other potential problems. Having an eye expert do a complete analysis of all medications taken, and the effects that they could potentially have on the vision of the participants involved in the accident is very important in determining who was negligent.

Testimony from an eye expert on analyzing the influences of visibility at the accident scene, and visual acuity of the participants in the accident could be very important to a road motorcycle accident investigation.