Tracking changes in cone function is useful in managing the progression of the disease as well as efficacy of treatment.

Cone function, unlike visual acuity, is affected early in disease, often before the patient is aware of any vision loss. Even in the moderate stages of AMD and Glaucoma, patients frequently test at or near normal visual acuity.

Identifying cone function degradation may identify disease earlier, allowing treatment in the earliest stages of disease. Cone function continues to diminish as the disease progresses and in some cases, may recover upon treatment.

Slide Cone Function Degrades With Dry AMD
Diabetic Retinopathy
Optic Neuritis
Retinitis Pigmentosis
Stargardt Disease
Multiple Sclerosis
Parkinson’s Disease
High-Risk Medications, such as Plaquenil
Macular Pigment Density loss
Slide What is Dry AMD?
Age-Related Macular Degeneration (AMD) is the leading cause
of vision loss and blindness in the age group 65 and older.
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