Just returned from a conference where this issue was discussed but in a much more clinical way. Three issues were discussed that cause eye estrain which can cause headaches and photosensitivity.
Vision Blurr-Caused in try eye patients as tear film is disrupted from rapid evaporation or too little aqueous.
Aberrations-Causes are varied but usually affect the distribution of light over a small angular distance. This can cause distortion on the retinal image.
Light scatter-This a result of dry eyes. This causes symmetric and wide angle distribution of light. This affects quality of retina image and quality of vision.
So Dry eye is responsible for two + (not all aberrations are related to tear film and cornea) of the causes of visual distortion. The good news there is a device that can measure the Scatter as it relates to dry eyes and theoretically could measure improvement based on treatment. I am doing research now to see when this product will be approved by the FDA for use in America. This intial research was performed in Spain.
Vision Blurr-Caused in try eye patients as tear film is disrupted from rapid evaporation or too little aqueous.
Aberrations-Causes are varied but usually affect the distribution of light over a small angular distance. This can cause distortion on the retinal image.
Light scatter-This a result of dry eyes. This causes symmetric and wide angle distribution of light. This affects quality of retina image and quality of vision.
So Dry eye is responsible for two + (not all aberrations are related to tear film and cornea) of the causes of visual distortion. The good news there is a device that can measure the Scatter as it relates to dry eyes and theoretically could measure improvement based on treatment. I am doing research now to see when this product will be approved by the FDA for use in America. This intial research was performed in Spain.
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