What is the main purpose of diagnostic testing in optometry?

The main purpose of diagnostic testing in optometry is to identify and monitor ocular diseases. This aspect is crucial in maintaining eye health, as it allows optometrists to detect conditions such as glaucoma, diabetic retinopathy, macular degeneration, and cataracts, among others. Early detection of these diseases can lead to timely intervention, potentially preserving vision and improving patient outcomes.

While prescribing glasses, measuring visual acuity, and assessing color blindness are important components of an optometrist's practice, these tasks primarily relate to vision correction and basic visual function assessment rather than the comprehensive evaluation and management of eye diseases. Diagnostic testing encompasses a broader range of tools and examinations that provide insights into the health of the eye and the presence of any pathological conditions.