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Accidental Nd:YAG laser injuries to the macula
A B Thach1, P F Lopez, L C Snady-McCoy
1Department of Ophthalmology, University of Southern California School of Medicine, USA.
American Journal of Ophthalmology
|June 1, 1995
Summary
Accidental Nd:YAG laser macula injuries can cause retinal holes. Visual acuity improved without treatment if the laser site was outside the foveal center.
Area of Science:
- Ophthalmology
- Laser medicine
- Retinal imaging
Background:
- Neodymium-doped yttrium aluminum garnet (Nd:YAG) lasers are used in ophthalmology.
- Accidental laser exposure can cause ocular injury, particularly to the macula.
Observation:
- This study reviewed five eyes with macular injuries from Nd:YAG lasers.
- Patients were monitored for a mean of 20 months without surgical intervention.
Findings:
- All eyes developed full-thickness foveal or parafoveal retinal holes within two weeks.
- Final visual acuity averaged 20/60 and correlated with hole proximity to the foveal center.
- No subretinal neovascularization or significant epiretinal membrane formation occurred.
Implications:
- Nd:YAG laser injuries to the macula can result in visual impairment.
- Improvement in visual acuity is possible without intervention if the injury is parafoveal.
- Understanding injury location is crucial for predicting visual outcomes.