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The potential damaging effects of light on the eye (Part II).

The electromagnetic spectrum consists of radiant energy that is classified according to specific wavelengths. Man is constantly exposed to a portion of the electromagnetic spectrum, particularly to radiation in the ultraviolet, visible and infrared regions. The tissues of the eye and skin are particularly sensitive to the non-ionizing wavelengths of radiant energy. Although both tissues possess endogenous protective mechanisms to minimize the effects of such exposure, problems still occur due to the absorption of radiation. The cornea, lens and retina have been shown to be susceptible to damage from light in the ultraviolet, visible and infrared range. Part I of this two-part article, which examined the structures of the eye that are most susceptible to light damage, appeared in the October issue of the Journal; in this, the second and final part of his article, the author focuses on eye protection.

Aphakia, Postcataract↗

Solar retinopathy in the Manchester area.

A report of 11 cases of solar retinopathy is given. Particular emphasis is laid on the mechanism of light hazard with protective measures available, symptoms including scotomata with visual prognosis, and the clinico-pathological correlation of the findings. These are divided into mild, with early retinal oedema, and moderate, with later development of pseudo-lamellar holes associated with the presence of a fibrillar 'tuft' described here for the first time.

Adolescent↗

Management of corneal foreign bodies.

Optimal management of corneal foreign-body injuries includes an accurate history, thorough examination of both eyes, atraumatic removal of the foreign body, elimination of the rust ring, appropriate antibiotic prophylaxis and protective patching. Pitfalls to be avoided include using topical steroids, which may promote ulceration from fungal contaminants, and prescribing topical anesthetics, which can mask the pain of a retained tarsal foreign body or a developing corneal ulcer. Careful records of care and follow-up are essential.

Anesthesia, Local↗

An eye for cricket. Ocular injuries in indoor cricketers.

Indoor cricket has become a popular form of recreation in Australia. Four cases of significant ocular trauma in indoor cricketers are reported. Three of the patients had diminished visual acuity in at least one eye before their injury. One patient may suffer long-term consequences as a result of his injuries. These injuries could probably have been prevented by the use of appropriate eye protection. Indoor cricketers might well be advised to undergo ocular assessment before taking up this sport.

Adult↗

Solar retinopathy: a review of the literature and case report.

Accounts of solar retinopathy have existed for centuries, but only recently have researchers begun to investigate the mechanisms responsible for producing solar retinal injury. The vast majority of solar retinal injuries occur as a result of viewing a solar eclipse without adequate protection. The extent of structural retinal damage and associated visual impairment is dependent upon the intensity and duration of solar exposure. The exact mechanisms which operate to produce solar retinal compromise are not completely known, but is believed to involve a thermally enhanced photochemical process. Despite the lack of a standardized treatment protocol, most cases of solar retinopathy will improve significantly over time without treatment. Prevention remains the mainstay of therapy. Solar retinopathy must be differentiated from other subtle macular diseases in the absence of a confirmed history of solar exposure.

Adult↗

Safety with lasers.

Explore the source record for details and available documents.

Eye Protective Devices↗

Eye injuries associated with war games.

War games, an outdoor activity combining recreation, military maneuvers and fantasy, are becoming a popular recreational sport. Increasing numbers of players are suffering eye injuries. In the last year 26 cases of serious eye injuries were reported to Canadian ophthalmologists; in 15 eyes vision was reduced to 6/24 or less. Although eyeguards are provided, all the injuries had occurred when the participants were not wearing them. Methods of preventing eye injuries in war games are discussed.

Adult↗