Kubĕna, K [Step-like corneal incision in cataract surgery using a trephine. Evaluation of 1,118 operations]. [electronic resource] - Ceskoslovenska oftalmologie Jul 1978 - 275-80 p. digital Publication Type: English Abstract; Journal Article ISSN: 0009-059X Subjects--Topical Terms: Cataract Extraction--instrumentationHumansOphthalmology--instrumentation