 Caster is considered a pioneer in the field of Lasik surgery, being one of twenty doctors who got the LASIK procedure approved by the FDA.He is also one of the only four American medical doctors to serve on the Medical Advisory Board of Alcon, which is the world’s largest eye care products company.Caster has served as a clinical instructor of ophthalmology at the UCLA Jules Stein Eye Institute and as a special advisor on the board of the Everychild Foundation.