Preliminary results of SLT in post PKP eyes with secondary open-angle glaucoma

Session Details

Session Title: Glaucoma I

Session Date/Time: Sunday 11/09/2016 | 14:30-16:00

Paper Time: 14:30

Venue: Auditorium C6

First Author: : A.Ganguly INDIA

Co Author(s): :    S. Chakravorty   J. Sengupta                 

Abstract Details

Purpose:

To evaluate the effect of selective laser trabeculoplasty in post penetrating keratoplasty eyes with secondary glaucoma.

Setting:

A tertiary referral institute in Eastern India. Priyamvada Birla Aravind Eye Hospital, Kolkata

Methods:

Prospective interventional case series.22 eyes of 22 patients who had undergone pkp and had developed secondary open angle glaucoma . Only patients with 360 degree open angles on gonioscopy were selected. Their vision, graft status, anterior chamber reaction were noted. iop s were measured with tonopen. Three readings were taken with 5% confidence intervals and the arithmetic mean of the three readings were calculated. all the above mentioned parameters were recorded pre op/ 1hour post op, 1 day post op and 1 month post op. In all the eyes slt was done 360 degrees following the accepted guidelines.

Results:

MALE : FEMALE16:6. AGE RANGE 22-87 YEARS(MEAN 59.45, SD 17.27, CI- 47.85 TO 71.06) . VA RANGES 1.07 – 0.3 LOGMAR. (M -0.6373, SD – 0.29. CI 0.44 – 0.83). PRE SLT IOP WERE 1.6 TO 40.3( M- 21.35. SD- 7.14. CI 16.55 – 26.15). 1HR POST OP IOP(10.3 – 41.3 M- 19.5 SD – 9.2 CI 13.32 – 25.69.) 1 DAY POST OP IOP(09 – 40.3. M- 17.79. SD 8.48. CI 12.09- 23.48.) 1 MONTH POST OP IOP(10.6 – 40 M- 18. SD- 12.42. CI- 12.42- 23.57.) COMPARING THE PRE SLT IOP WITH POST OP I HOUR, I DAY AND I MONTH POST SLT DATA BY THE UNPAIRED t TEST REVEALED P VALUES OF 0.60, 0.29, 0.322 RESPECTIVELY.THESE DIFFERENCES WERE STATISTICALLY NOT SIGNIFICANT.

Conclusions:

SLT does not seem to have any statistically significant effect in iop lowering in post pkp glaucoma in the preliminary early follow up period. Further follow up may reveal whether this stands true for longer follow up periods. post PKP eyes may have changes in trabecular meshworks which do not react favourably to SLT as far as IOP reduction is concerned.

Financial Disclosure:

NONE