Top-Ten of the XIV Annual Meeting of the Glaucoma Society of India
November 20-21, 2004, Shri Ganapati Netralaya Jalna India
Prateep Vyas
The meeting was attended by around 250 glaucomatologists from all
over the country. There were 55 scientific lectures covering various
aspects of Glaucoma and 25 free papers, and 21 scientific posters were
displayed.
- In an epidomiology study of glaucoma in India reported
prevalence of POAG was 0.41% to 2.56%. There is an increase in
prevalence with age. Prevalence of angle closure glaucoma was 1.58%
and females were three times more likely to have angle closure than
males. The overall prevalence of glaucoma in this study (Chennai
Glaucoma Survey) was 4.17% and 98.2% of cases did not have prior
diagnosis of disease.
- Automated perimetry continues to be the best way of judging
deterioration in visual fields. Of the various programs available
for this purpose glaucoma progression analysis (GAP) currently are
the most useful. The role of establishing disease progression in a
clinical setting is different from that in a randomised study. This
difference helps in planning a relatively safe management of
glaucoma.
- The Consensus meeting on structural and functional damage in
glaucoma was held in November 2003. Essentials of the proceedings
were presented. It was mentioned that digital imaging earned its
place in our diagnostic armamentarium. In the absence of a true gold
standard it seems prudent to include a measure of progression as a
part of the standard.
- Intraocular pressure after intravitreal injection of
Triamcinolone acetonide was presented in a study of consecutive 280
eyes. IOPs higher than 21 mmHg, 30 mmHg, 35 mmHg, 40 mmHg,
respectively were measured in 36.2%, 8.5%, 4.2%, 1.5% patients.
Younger age and base line diagnosis of glaucoma were significantly
associated with drug induced high IOP.
- Global perspective on RCT's: An Indian review. In the ocular
hypertension study, relative risk (RR) of 2.2% and a relative risk
reduction (RRR) of 54%. The number needed to treat is only 20, but
the threat of blindness is small. After the relative risk reduction
(RRR) is the same across the board, it may be better to treat those
at higher risk (IOP 26 with thin cornea, etc.) and lower NNTS.
- In a study on surgical management of childhood glaucoma, results
of trabeculotomy with trabeculectomy were presented. The probability
of success (IOP less than 21 mmHg) was 94.5%, 92.1%, 86.7%, 79.4%,
72.9% and 63.1% at the first, second, third, fourth, fifth and sixth
year respectively.
- In a study on UBM to compare the measurement with angle
assessment by gonioscopy it was found that UBM measurements were
highly co-related to the gonioscopy assessment. All UBM parameters
were narrower than that reported in western literature. This
explains the high incidence of PAC in the Indian population.
- Pulsatile ocular blood flow in primary open angle glaucoma was
shown to be lower. It was found that ocular pulsatile blood flow
improved by almost 60% at 3 months follow-up after trabeculectomy in
comparison to medical therapy with Thimolol and Brimonidine.
- A new modality of neuro protection was developed which promises
to prevent most of the problems associated with functional
neuroprotective drugs. Neuroprotection achieved by vaccinating the
patients with a low specificity antigen is now under an early phase
of clinical trial in chronic open angle glaucoma patients.
- In a study of intraocular pressure in normal paediatric
population was presented. IOP was measured in 810 eyes with a
Perkins tonometer in paediatric patients, age ranging from new born
0 to 12 years. It was found that IOP showed an increasing trend with
age. The mean IOP at 0-1 year of age was 8 ± 2.55 mmHg and at 11-12
years of age 14.9 ± 3 mmHg.
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