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¹S.B.Ankara Gazi Hastanesi Göz Hastalıkları, Ankara, Uzm. Dr.
²Ankara Mesa Hastanesi Göz Hastalıkları, Ankara, Uzm. Dr.
³S.B. Ankara Eğitim ve Araştırma Hastanesi 1.Göz Klinik Şefi, Ankara, Uzm. Dr. Purpose: To evaluate the surgical technique and parameters affecting the success of posterior polar cataract surgery.
Materials and Methods: This prospective study comprised of 23 eyes of 12 patients, who have been diagnosed as posterior polar cataract and have undergone cataract surgery under topical anesthesia. Modified chip-flip technique was carried out after hydrodelination in all cases. Details of surgical technique, intraoperative complications and the results are evaluated.
Results: Phacoemulsification with modified chip-flip technique was carried out bilateraly in11 patients, unilaterally in 1 patient. Posterior capsular defects were observed in 6 (26%) of 23 eyes during removal of the posterior plague. 2 patients had bilateral and 2 patients had unilateral posterior capsular defects. Anterior vitrectomy and posterior vitrectorhexis was performed in 2 (33%) of 6 eyes having posterior capsular defect with vitreus loss. Capsular bag implantation was achieved in 17 eyes. Sulcus intraocular lenses were implanted in 6 eyes with posterior capsular defects either with or without vitreus loss. Acrysof MA30BA or Allergan SI40 were used depending upon availability of diopteries. For sulcus fixation Allergan SI40 was preferred. All the eyes with the preserved posterior capsul achieved visual acuities of 20/25 or over. In eyes with the posterior capsule defects either with or without vitreus loss, distance visual acuities were ranging between 20/200 to 20/50 visual acuity. Two eyes with vitreus loss had cystoid macular edema demonstrated by fundus florescein angiography.
Conclusion: In case phacoemulsification of posterior polar cataracts, careful surgical planning and meticulous surgery yields satisfactory technical and visual outcomes. Posterior capsule defects and vitreus loss is inevitable and may prone to macular complications. Keywords : Posterior polar cataract, phacoemulsification, posterior capsular rupture, congenital cataract