Here are some safety hints from Dr. Nations and the Georgia Optometric Association
1) Children and teenagers should not wear decorative contact lenses without consulting an eye doctor. These non-corrective lenses are easily accessible to consumers and are especially popular around Halloween. Risks associated with use of decorative contact lenses include conjunctivitis, swelling, allergic reaction and corneal abrasion due to poor lens fit. Other problems may include reduction in visual acuity (sight), contrast sensitivity and other general eye and vision impairments.
2) Be careful that children do not wear masks, wigs, floppy hats or eye patches that block vision.
3) Children, especially very young ones, should not carry pointed props such as spears, swords or wands that endanger other children's eyes.
Here are some other commonsense safety tips to keep adults and the little goblins safe this Halloween.