title: A prospective study of 413 cases of lens-induced glaucoma in Nepal.
abstract: OBJECTIVE
  To determine the frequency and types of lens-induced glaucoma (LIG), reasons for late presentation and outcome of current management.
  
  
  METHODS
  Prospective case series of 413 patients/eyes with LIG over a 12-month period in 1998; 311 of these patients underwent cataract surgery. Visual acuity and intraocular pressure (IOP) were pre- and postoperatively assessed.
  
  
  RESULTS
  Four hundred and thirteen (1.5%) of 27,073 senile cataracts seen in the outpatient department of Sagarmatha Choudhary Eye Hospital, Lahan, Nepal presented with LIG. There were 298 (72%) phacomorphic cases and 115 (28%) phacolytic glaucoma. Pain for more than 10 days was reported by 293 (71%) patients. The majority, 258 (62.4%), travelled a distance of more than 100 kms to the hospital. The major reasons for late presentation were "no escort" in 143 (34.6%) and "lack of money" in 128 (31.0%) cases. At presentation the IOP was more than 30 mm Hg in 327 (79%) eyes. Following cataract surgery, 251 (80.7%) had 21 mm Hg or less at discharge. The visual acuity was hand-movement or less before surgery in all eyes; at discharge 120 of 311 operated eyes (38.6%) achieved 6/60 or better, 97 (31.2%) less than 6/60, and 94 (30.2%) less than 3/60. The main causes for poor outcome in 94 cases were optic atrophy in 32 (34%) eyes, uveitis in 25 (26.6%)eyes and corneal oedema in 24 (25.5%) eyes.
  
  
  CONCLUSIONS
  The results highlight the importance of early diagnosis and treatment of visually disabling cataract. There is a need to educate both the patient and the cataract surgeon of the dangers of lens-induced glaucoma and of the poor outcome if treatment is delayed.
authors.affiliation: Sagarmatha Choudhary Eye Hospital, Lahan, Nepal.
authors.forename: D
authors.initials: D
authors.lastname: Pradhan
authors.forename: A
authors.initials: A
authors.lastname: Hennig
authors.forename: J
authors.initials: J
authors.lastname: Kumar
authors.forename: A
authors.initials: A
authors.lastname: Foster
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002387:Cataract Extraction / Q000009:adverse effects*; D005260:Female; D005901:Glaucoma / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D007194:India / Q000453:epidemiology; D007429:Intraocular Pressure; D019654:Lens Implantation, Intraocular / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011446:Prospective Studies; D014792:Visual Acuity