Study of the importance of family screening of glaucoma: identifying the target
Aim: To describe the value and results of family screening of glaucoma patients in the glaucoma clinic of a tertiary center in the Garhwal Himalayan region over a period of one year.
Material and Method: 300 patients underwent comprehensive ophthalmic examination and glaucoma examination including IOP measurement by Goldman applanation tonometry, binocular dilated fundoscopy with +90D Volk lens, gonioscopy using the 4 mirror Volk goniolens.
Results: 300 persons detected with primary glaucoma whose families were invited to participate in the family screening initiative, there were 114 first degree relatives who attended the screening with a response rate of 32%. The relatives of probands ranged in age from 18 to 89 years with 56.8% being males. 198 were diagnosed as primary angle-closure suspects, 8 as angle-closure,238 as glaucoma suspects and 132 subjects (11.6%) had definite glaucoma. Most affected subjects were in 40-70 years. The angle-closure disease was found more in females.
Conclusion: Study also found a higher prevalence of glaucoma in siblings; especially the angle-closure entity. Targeting first degree relatives of persons with primary glaucoma may offer a relatively inexpensive way of detecting glaucoma and in the identification of suspects at risk of glaucoma who may be advocated closer monitoring.
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