Diving After an Eye Stroke

Q: I recently had an eye stroke. Can I still dive after it has been resolved? A: The main concerns with an eye stroke (central retinal artery occlusion, or CRAO) are the underlying cause and the medications your doctor prescribed for treatment. Before returning to diving, work with your ophthalmologist or physician to determine the root cause of the initial ocular stroke, the probability of recurrence, and your overall cardiovascular health.

Right Eye Sequelae of Branch retinal artery occlusion (BRAO) located temporal superior

Royal Bermuda Regiment Coast Guard Divers

In February 2020 the Royal Bermuda Regiment launched Bermuda’s first coast guard unit, responsible for enforcing maritime law in its waters and providing around-the-clock search-and-rescue capabilities. 

Members of the Bermuda Regiment Coast Guard dive team review a dive plan during a training dive.

Learning from the Conception

On Sept. 2, 2019, the small passenger vessel Conception burned to the waterline off Santa Cruz Island, California, killing 34 people. This wasn’t the first liveaboard fire, but the fearful reactions to this deadly tragedy echoed throughout the scuba industry. Liveaboard fires that have occurred since this incident have further fueled industry concerns.

A safety drill, including what to do in case of fire or abandoning ship, should occur at the beginning of every cruise.

Kwajalein’s Shipwrecks

My friend Evan Gill pointed across the perfect beach to a spot about 650 feet offshore and casually said, “There’s a Japanese patrol boat from World War II,” as he leaned out of our golf cart. The ocean was an ideal blue and smooth as polished glass, not even lapping against the white sand.

Kwajalein Atoll aerial photo.

Training Is Everything in a Rescue Attempt

Many divers are proud to be comfortable in the water and sometimes push their limits on air consumption, exceed their bottom time, or take one last shot of a big fish with a camera or spear before ascending. Some of them develop reputations in the dive community for being competent divers by looking cool and experienced while taking little risks. It may start small but snowball into making poor decisions for which the price you pay is not worth the reward.

multiple scuba divers spearfishing

Time Is of the Essence

In each issue of Alert Diver, you’ll find advertisements for some of the world’s best and most reputable liveaboard operators. Liveaboards are a great way to explore remote dive destinations for multiple days at a time, giving divers immersive and unforgettable experiences in certain corners of the underwater world.

Bill Ziefle

Nutrition optimale pour la plongée 

La plongée sous-marine exige non seulement une bonne condition physique, mais aussi une préparation nutritionnelle adéquate. Comme pour toute activité, nous dépensons de l’énergie en plongeant ; de façon surprenante, l’énergie nécessaire pour une plongée récréative habituelle reste relativement modérée. Dans des conditions récréatives exceptionnellement exigeantes, il est toutefois possible de brûler plus de 500 calories. 

A healthy diet is an asset for safe scuba diving as well as a beneficial lifestyle

Kavieng

As a diver and photographer, I seek remote locations offering unparalleled underwater experiences. The farther away and the fewer the people, the better. Papua New Guinea is such a place.

A split image shows the house reef at Lissenung.

Speak of the Spiny Devilfish

The spiny devilfish (Inimicus didactylus) is a member of the family Scorpaenidae, which also contains the venomous lionfish, stonefish, and scorpionfish. These fish conceal glandular venom-producing daggers within their dorsal, pelvic, and anal fins. Divers — especially underwater photographers who may focus on one creature while others sidle up under their legs — must be aware of these animals’ subtle defense maneuvers.

Red Spiny Devilfish

South Australia’s Great White Shark Adventure

Great white sharks are capricious fish. They are iconic, impressive, photogenic, and awe-inspiring but also frustrating. That frustration is not all about the animal — part of it is how few places in the world you can go to see them.

A great white shark (Carcharodon carcharias) swims near the surface cage