All About Vision’s popular “Ask the Dry Eye Doctor” feature addresses many topics, including causes of dry eyes and conditions such as Sjogren’s syndrome.

William Trattler, MD, answers selected reader questions by discussing remedies that include using over-the-counter or prescription eye drops or taking flaxseed oil orally.

Past answers from previous eye doctor Q&As are found in articles including “Ask the LASIK Surgeon” and “Ask the Cataract Surgeon.”

Choosing an appropriate eye doctor may be confusing for some people who don’t really understand the differences between optometrists, ophthalmologists and opticians.

In this new All About Vision topic, associate editor Gary Heiting, OD, explains those differences, including educational requirements for each profession.

A person who requires only a routine eye exam, for example, would have much different needs than someone who might require cataract surgery.

All About Vision’s newly expanded Vision Therapy for Children article offers insightful and objective analysis of different techniques such as computerized visual activities.

Note that legitimate vision therapy does not involve a program of self-directed eye exercises promising that you can throw away your eyeglasses.

Vision therapy addresses conditions such as amblyopia or “lazy eye.”

New information in All About Vision’s recently expanded UV protection and sunglasses article also mentions potential harm from the sun’s high-energy visible (HEV) radiation or “blue light.”

If you have a full schedule of outdoor summer activities looming, this is even more reason to wear high-quality sunglasses with 100 percent UV protection. Many sunglasses now also offer protection from HEV radiation.

If you plan to participate in organized summer activities, check out advice about the best sports sunglasses or sports contact lenses.

This new All About Vision article discusses what happens when inflammation damages the eye’s optic nerve, leading to optic neuritis.

Optic neuritis and neuropathy can be signs of underlying health problems, including multiple sclerosis or ocular herpes.