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Internal ophthalmoplegia after retinal laser photocoagulation
Rajiv Raman1, Vijay Ananth, Swakshyar Saumya Pal
1Shri Bhagwan Mahavir Vitreoretinal Services, Chennai, Tamil Nadu, India. rajivpgraman@gmail.com
Cutaneous and Ocular Toxicology
|June 17, 2010
Summary
Internal ophthalmoplegia, a rare complication of retinal laser photocoagulation, can cause pupil dilation and loss of accommodation. Recovery is slow, with some patients experiencing only partial improvement even after 20 months.
Area of Science:
- Ophthalmology
- Retinal Diseases
- Neuro-ophthalmology
Background:
- Retinal laser photocoagulation is a common treatment for various retinal conditions.
- Internal ophthalmoplegia, characterized by impaired pupillary and accommodative function, is a potential but rare complication.
Observation:
- Three patients developed internal ophthalmoplegia following retinal laser photocoagulation.
- Clinical examination revealed dilated pupils and loss of accommodation in all cases.
- Denervation supersensitivity testing indicated autonomic dysfunction in two patients.
Findings:
- Recovery of accommodation and pupillary function was slow and incomplete in the observed cases.
- One patient showed partial recovery over 10 months, while another had no accommodative recovery after 20 months.
- Pupil graph recordings documented the slow recovery pattern.
Implications:
- This case series suggests that internal ophthalmoplegia following retinal laser photocoagulation may have a prolonged and incomplete recovery course.
- Ophthalmologists should be aware of this rare complication and counsel patients on potential visual disturbances.
- Further research is needed to understand the underlying mechanisms and optimize management strategies.
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