21 June 2024 According to the World Health Organization (WHO), low vision is when: Visual acuity is less than 3/10 There is a visual field restriction of less than 20º (after treatment and / or the best refractive correction). Low vision is an intermediate condition between normal vision and blindness. With the best standard optical correction, a person with low vision has difficulty performing one or several daily tasks, such as: Distinguish colors; Recognize the face of friends or family; Read and write; Move around the street or even at home or other more familiar environments; Watch TV; To cook. Low vision may be: Congenital : present at birth Acquired later in life Any pathology or injury that affects the anterior region of the eye (cornea), intraocular structures or the retina, optic nerve and central nervous system can lead to low vision. Examples are: Macular degeneration; Glaucoma; Diabetic retinopathy; Pigmentary retinopathy. The symptoms of low vision vary with the disease causing visual impairment. Low vision does not have to mean total loss of independence. Low vision rehabilitation is an essential process for people who face significant visual difficulties. The objective is to improve your quality of life, focusing on specific day-to-day complaints. The intervention is personalized and adapted to individual needs , ensuring that each person receives the necessary support to maximize their visual impact, promoting their independence and autonomy. To achieve these objectives, various optical and electronic aids are used, which allow the patient to perform tasks that were previously challenging or impossible. Examples of these aids are: Magnifying glasses; Special glasses; Electronic magnification systems; Reading software. In addition to evaluation by an ophthalmologist specialized in this area, the rehabilitation process includes training on the appropriate use of aids ensuring that they are integrated effectively into each patient daily routine. The content published in the Health Guide is intended for the general public and is provided for informational and educational purposes only. It does not replace individual medical assessment, diagnosis, or personalized clinical advice from a qualified healthcare professional. The content is produced or reviewed by physicians and other healthcare professionals at Hospital da Luz and is based on the knowledge available at the time of publication or the most recent update, as indicated at the beginning of each item.
