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document
Evaluation of electrofunctional data following argon-laser trabeculoplasty in primary open-angle glaucoma . To establish whether or not glaucomatous damage is reversible , we obtained pattern-reversal electroretinograms ( PERGs ) and visual evoked potentials ( VEPs ) in 25 eyes of 25 patients suffering from bilateral primary open-angle glaucoma ( POAG ) before and after argon-laser trabeculoplasty . The laser treatment was carried out in only one eye chosen at random , and the fellow eye was used as a control . In the present study we intended to verify the possibility of using electrofunctional techniques to determine the two distinct and , probably , consecutive glaucomatous alterations occurring in ganglion cells : functional ( reversible ) and anatomical ( irreversible ) . The results obtained indicate that glaucomatous damage is irreversible . We propose that such alterations differ very slightly and that the current electrofunctional techniques may not be sufficiently sophisticated to distinguish between them .
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Intervention_Surgical
argon-laser trabeculoplasty
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Intervention_Surgical
argon-laser trabeculoplasty
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Outcome_Physical
glaucomatous damage
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Outcome_Other
pattern-reversal electroretinograms ( PERGs )
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Outcome_Other
visual evoked potentials ( VEPs )
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Outcome_Physical
glaucomatous alterations occurring in ganglion cells : functional ( reversible ) and anatomical ( irreversible ) .
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Outcome_Physical
glaucomatous damage
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Participant_Condition
25 eyes of 25 patients suffering from bilateral primary open-angle glaucoma ( POAG ) before and after argon-laser trabeculoplasty .