Severely reduced visual acuity
Severe reduction of the ability to see. On the 6m visual acuity scale, severe reduction is defined as less than 6/60 but at least 3/60. On the 20ft visual acuity scale, severe reduction is defined as less than 20/200 but at least 20/400. On the decimal visual acuity scale, severe reduction is defined as less than 0.1 but at least 0.05.
Also called: Marked vision impairment, Severe reduction in visual acuity, Severe vision loss, Severe visual impairment, Severe visual loss, Severely impaired vision.
Conditions associated with severely reduced visual acuity
The following conditions have been associated with severely reduced visual acuity in medical literature. This is informational and not a diagnosis.
Hermansky-Pudlak syndrome 1
Any Hermansky-Pudlak syndrome in which the cause of the disease is a mutation in the HPS1 gene....
microcephaly, progressive, with simplified gyral pattern and cerebellar hypoplasia
microcephaly, progressive, with simplified gyral pattern and cerebellar hypoplasia is a medical condition that...
multiple mitochondrial dysfunctions syndrome 9b
A mitochondrial dysfunction syndrome in which the cause of the disease is a mutation in the FDXR gene. It is c...
Tests providers may use to investigate severely reduced visual acuity
When investigating severely reduced visual acuity, a healthcare provider may order one or more of the following laboratory tests. Test selection is a clinical decision made by a qualified professional.
CBC with Differential
Measures red blood cells, white blood cells, and platelets to help evaluate overall health and detect disorder...
Comprehensive Metabolic Panel (CMP)
Measures 14 substances in the blood to assess kidney and liver function, electrolyte balance, and blood sugar ...
Urinalysis
Examines urine content to help detect urinary tract infections, kidney disease, and diabetes....
Symptoms commonly seen alongside severely reduced visual acuity
Constipation
Infrequent or difficult evacuation of feces....
Depression
Frequently experiencing feelings of being down, miserable, and/or hopeless; struggling to recover from these m...
Dysphagia
Difficulty in swallowing....
Fatigue
A subjective feeling of tiredness characterized by a lack of energy and motivation....
Muscle weakness
Reduced strength of muscles....
Seizure
A seizure is an intermittent abnormality of nervous system physiology characterized by a transient occurrence ...
When to seek care
Seek care from a qualified healthcare provider if severely reduced visual acuity is severe, persistent, worsening, or accompanied by concerning symptoms. If you think you have a medical emergency, call your local emergency number immediately.
Frequently Asked Questions
What does the symptom severely reduced visual acuity mean?
Severely reduced visual acuity is a health sign or symptom described in medical literature. Severe reduction of the ability to see. On the 6m visual acuity scale, severe reduction is defined as less than 6/60 but at least 3/60. On the 20ft visual acuity scale, severe reduction is defined as less than 20/200 but at least 20/400. On the decimal visual acuity scale, severe reduction is defined as less than 0.1 but at least 0.05.
Which conditions are associated with severely reduced visual acuity?
Severely reduced visual acuity has been reported in association with 3 conditions in the medical literature we index, including Hermansky-Pudlak syndrome 1, microcephaly, progressive, with simplified gyral pattern and cerebellar hypoplasia, multiple mitochondrial dysfunctions syndrome 9b. These associations do not mean you have any of these conditions.
Should I see a doctor about severely reduced visual acuity?
You should discuss any persistent or concerning symptoms with a qualified healthcare provider. This website does not provide diagnosis. If you have severe symptoms or signs of a medical emergency, seek care immediately.