Binocular Vision in Chronic Fatigue Syndrome

Area of Science:

• Ophthalmology
• Neurology
• Clinical Medicine

Background:

• Chronic Fatigue Syndrome (CFS) is a complex condition with diverse symptoms.
• Binocular vision plays a crucial role in visual comfort and function.
• Previous research has not extensively explored visual impairments in CFS patients.

Purpose of the Study:

• To investigate and compare binocular vision parameters in individuals diagnosed with Chronic Fatigue Syndrome (CFS) against a healthy control group.
• To identify specific visual deficits associated with CFS.

Main Methods:

• A prospective study involving 41 CFS patients and 41 age- and gender-matched healthy controls.
• Comprehensive orthoptic examinations assessing visual acuity, eye position, fusion amplitude, stereopsis, ocular motility, convergence, and accommodation.

Main Results:

• CFS patients demonstrated statistically significant reductions in fusion amplitude (P < 0.001).
• A highly significant decrease in convergence capacity (P < 0.001) was observed in the CFS group.
• Patients with CFS exhibited a significantly smaller accommodation range (P < 0.001) compared to controls.

Conclusions:

• Routine examination of binocular vision, convergence, and accommodation is recommended for CFS patients.
• CFS patients may benefit from early intervention with reading glasses, potentially including prism correction.
• Convergence exercises could be a beneficial, though potentially fatiguing, treatment option for CFS patients, warranting further research into efficacy.