Abstract
BACKGROUND: A 23-year-old female Bornean sun bear presented with symptoms of right eye discomfort, including frequent blinking and scratching. Ophthalmic examination revealed a dilated right pupil, anterior lens displacement, and early-stage bilateral cataracts. Corneal edema developed in the right eye. CASE DESCRIPTION: An intracapsular lens extraction was performed to remove the right dislocated lens and ruptured capsule 3 weeks later. Postoperative care included topical eye drops, oral anti-inflammatory drugs, and antibiotics. Mild eyelid swelling, ocular rubbing, and decreased appetite were noted during the first postoperative week. By day 18, the eyelid swelling had resolved and the eye was fully open; however, a persistent corneal opacity rendered the right eye blind. CONCLUSION: This case illustrates the complexities of ophthalmic surgery in a Bornean sun bear, particularly in managing postoperative complications and visual outcomes. This underscores the importance of early detection and timely surgical intervention in wildlife medicine to improve prognosis and preserve ocular health.