scholarly journals Ab Interno vs. Ab Externo Microcatheter-Assisted Circumferential Trabeculotomy in Treating Patients With Primary Open-Angle Glaucoma

2021 ◽  
Vol 8 ◽  
Author(s):  
Weijia Zhang ◽  
Yiwei Wang ◽  
Chen Xin ◽  
Yang Sun ◽  
Kai Cao ◽  
...  
Keyword(s):  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Case Series ◽  
Open Angle ◽  
Success Rates ◽  
Criterion A ◽  
The Mean ◽  
Group 2 ◽  
Ab Interno ◽  
Group 1

Background: Circumferential trabeculotomy have evolved from ab externo to ab interno approach. Both procedures may lower IOP, but it is unclear which maybe a superior approach.Purpose: To compare the outcomes of ab interno and ab externo circumferential trabeculotomy in patients with primary open-angle glaucoma.Design: Retrospective, comparative case series.Participants: Primary open angle glaucoma patients undergoing ab interno (40 patients in Group 1) or ab externo (54 patients in Group 2) circumferential trabeculotomy, with about one half of them having prior incisional glaucoma surgery.Methods: Outcomes including intraocular pressure (IOP), glaucoma medications and surgical complications were analyzed.Main Outcome Measures: IOP, medications and surgical success defined as an IOP of ≤ 21 mmHg and a reduction of IOP ≥20% from baseline (criterion A) or IOP ≤ 18 mmHg and a reduction of IOP 20% from baseline (criterion B) with (qualified success) or without (complete success) medications.Results: At 1 year, IOP decreased by 37.1% (26.0–14.8 mmHg) in Group 1 and 39.5% (28.5–15.1 mmHg) in Group 2. Medications decreased from 3.5 in Group 1 and 3.6 in Group 2 pre-operatively to 0.6 ± 1.0 and 0.3 ± 0.6 post-operatively, respectively. Success rates did not differ significantly between groups based on criterion A (complete and qualified success: 68.7 and 81.9% in Group 1, and 75.3 and 90.4% in Group 2, respectively) or criterion B (complete and qualified success: 58.2 and 79.3%in Group 1, and 69.5 and 88.4% in Group 2, respectively). For eyes with prior filtration surgeries, the mean percent reduction of IOP (41.7 ± 32.7% in Group 1, 39.7 ± 27.8% in Group 2, P = 0.724) and the mean medication reduction (2.9 ± 1.6 in Group 1, 3.4 ± 1.0 in Group 2, P = 0.454) were not significantly different.Conclusions: Ab interno circumferential trabeculotomy achieved comparable outcomes to ab externo trabeculotomy and may be an effective surgical option for patients with primary open-angle glaucoma.

scholarly journals Comparison of Efficacy between 120° and 180° Schlemm’s Canal Incision Microhook Ab Interno Trabeculotomy

2021 ◽  
Vol 10 (14) ◽  
pp. 3181
Author(s):  
Naoki Okada ◽  
Kazuyuki Hirooka ◽  
Hiromitsu Onoe ◽  
Yumiko Murakami ◽  
Hideaki Okumichi ◽  
...  
Keyword(s):  
Surgical Outcomes ◽  
Open Angle Glaucoma ◽  
Case Series ◽  
Glaucoma Surgery ◽  
Success Rates ◽  
Schlemm’S Canal ◽  
Schlemm's Canal ◽  
Kaplan Meier ◽  
The Mean ◽  
Ab Interno

We compared surgical outcomes in patients with either primary open-angle glaucoma or exfoliation glaucoma after undergoing combined phacoemulsification with either a 120° or 180° incision during a Schlemm’s canal microhook ab interno trabeculotomy (μLOT-Phaco). This retrospective comparative case series examined 52 μLOT-Phaco eyes that underwent surgery between September 2017 and December 2020. Surgical qualified success was defined as an intraocular pressure (IOP) of ≤20 mmHg, ≥20% IOP reduction with IOP-lowering medications, and no additional glaucoma surgery. Success rates were evaluated by Kaplan-Meier survival analysis. The number of postoperative IOP-lowering medications and occurrence of complications were also assessed. Mean preoperative IOP in the 120° group was 16.9 ± 7.6 mmHg, which significantly decreased to 10.9 ± 2.7 mmHg (p < 0.01) and 11.1 ± 3.1 mmHg (p = 0.01) at 12 and 24 months, respectively. The mean number of preoperative IOP-lowering medications significantly decreased from 2.8 ± 1.4 to 1.4 ± 1.4 (p < 0.01) at 24 months. Mean preoperative IOP in the 180° group was 17.1 ± 7.0 mmHg, which significantly decreased to 12.1 ± 3.2 mmHg (p = 0.02) and 12.9 ± 1.4 mmHg (p = 0.01) at 12 and 24 months, respectively. The mean number of preoperative IOP-lowering medications significantly decreased from 2.9 ± 1.2 to 1.4 ± 1.5 (p < 0.01) at 24 months. The probability of qualified success at 24 months in the 120° and 180° groups was 50.4% and 54.6%, respectively (p = 0.58). There was no difference observed for hyphema formation or IOP spikes. Surgical outcomes were not significantly different between the 120° and 180° incisions in Schlemm’s canal.

scholarly journals A Comparative Analysis of the Efficacy and Safety of fixed Combinations of Latanoprost/Timolol vs Dorzolamide/Timolol in Primary Open Angle Glaucoma or Ocular Hypertension

2012 ◽  
Vol 46 (4) ◽  
pp. 172-176
Author(s):  
Sukhsagar Ratol ◽  
Rani Walia ◽  
Mridu Chaudhry
Keyword(s):  
Ocular Hypertension ◽  
Primary Open Angle Glaucoma ◽  
Fixed Combination ◽  
Open Angle Glaucoma ◽  
Eye Drops ◽  
Open Angle ◽  
Once Daily ◽  
Group 2 ◽  
Diurnal Iop ◽  
Group 1

ABSTRACT Background Glaucoma is a leading cause of irreversible blindness. The fundamental problem in medical management of glaucoma is of patient compliance. An ideal drug or a drug combination is needed to slow the progression of this majorly symptomless disease. Aim To compare the efficacy and tolerability of the fixed combination latanoprost and timolol instilled once daily in the evening vs fixed combination of dorzolamide and timolol instilled twice daily in primary open angle glaucoma or ocular hypertension. Materials and methods A 12-week, randomized, open, parallel group study including 50 patients with primary open angle glaucoma or ocular hypertension was conducted at a tertiary care hospital. Patients were randomized to group 1, (fixed combination (FC) latanoprost and timolol eye drops, once daily in evening) and group 2, (FC dorzolamide and timolol eye drops, twice daily). At baseline, 2, 4 and 12 weeks, IOP was recorded at 9 AM and 12 noon. The difference in IOP reduction in two treatment groups from baseline to 12 weeks was the main outcome measure. Results Mean diurnal IOP was similar at baseline for both groups. Mean reduction in IOP from baseline to 12 weeks was 9.92 mm Hg (p = 0.001) in group 1 and 9.22 (p = 0.001) in group 2. The reduction in IOP in both groups 1 and 2 was statistically significant at all time intervals. There was a statistically significant advantage for group 1 at 12 weeks for both time readings (p = 0.013 and 0.002 respectively) as compared to group 2. Conclusion The fixed combination of latanoprost and timolol was more effective than that of dorzolamide and timolol in reducing mean diurnal IOP and both treatments were well tolerated. To confirm further such studies are required. How to cite this article Ratol S, Walia R, Chaudhry M. A Comparative Analysis of the Efficacy and Safety of fixed Combinations of Latanoprost/Timolol vs Dorzolamide/Timolol in Primary Open Angle Glaucoma or Ocular Hypertension. J Postgrad Med Edu Res 2012;46(4):172-176.

scholarly journals The Results of Trabeculectomy with Antimetabolites in Elderly Patients: A Retrospective Study

Acta Medica ◽  
2021 ◽  
pp. 1-5
Author(s):  
Özlem Dikmetaş ◽  
Sepideh Lotfisadigh, ◽  
Merve Kaşıkçı ◽  
Ali Bülent Çankaya ◽  
Sibel Kocabeyoğlu
Keyword(s):  
Intraocular Pressure ◽  
Retrospective Study ◽  
Elderly Patients ◽  
Mitomycin C ◽  
Open Angle Glaucoma ◽  
Success Rates ◽  
Topical Medication ◽  
The Mean ◽  
Group 2 ◽  
Group 1

Objective: To examine the effectiveness and results of primary trabeculectomy with 5-fluorouracil (group 1) or mitomycin-C (group 2) in elderly patients. Materials and Methods: This was a retrospective study including 67 eyes with primary open-angle glaucoma that underwent primary trabeculectomy with group 1 or group 2. Patients who were followed up for less than 1 year or were under 55 years of age were excluded from the study. Surgical success was evaluated according to a decrease in cup/disk ratio and reduction of intraocular pressure without any topical medication. Results: The mean ages of participants were 65.7 years (range 59–88) and 65.9 years (range 59–74) in groups 1 and 2, respectively. The mean preoperative and postoperative intraocular pressure values were 31.3 ± 5.7 mmHg (range 17–46) and 14.8 ± 0.4 mmHg (range 10–21) in group 1 (p < 0.001) and 31.5 ± 7.4 mmHg (range 18–52) and 14.8 ± 2.9 mmHg (range 10–21) in group 2 (p < 0.001). Conclusion: The use of 5-fluorouracil or mitomycin-C during primary trabeculectomy is associated with high postoperative success rates. There were no significant differences between 5-fluorouracil and mitomycin-C in terms of intraocular pressure reduction.

scholarly journals Efficacy and Safety of Timolol-Dorzolamide Fixed-Combination Three Times a Day Versus Two Times a Day in Newly Diagnosed Open Angle Glaucoma

2018 ◽  
Author(s):  
Mohammad Pakravan ◽  
Afsaneh Naderi Beni ◽  
Shahin Yazdani ◽  
Hamed Esfandiari
Keyword(s):  
Blood Pressure ◽  
Primary Open Angle Glaucoma ◽  
Fixed Combination ◽  
Open Angle Glaucoma ◽  
Case Series ◽  
Open Angle ◽  
Newly Diagnosed ◽  
Efficacy And Safety ◽  
The Mean

Purpose: To compare the therapeutic efficacy and safety of dorzolamide/timolol fixed-combination in newly diagnosed primary open angle glaucoma patients. Methods: In this prospective, interventional case series, newly diagnosed primary open angle glaucoma (POAG) patients that had not been treated for glaucoma were included. Patients were started on Cosopt twice a day (BID) for 1 month and then switched to three times a day (TDS) for additional 1 month. Patients underwent comprehensive ophthalmic examination, diurnal intraocular pressure (IOP), blood pressure (BP) and 24-hours heart rate (HR) measurements at baseline, month 1( BID), and month 2( TDS). IOP, systolic and diastolic pressures were measured at 8:00 AM,12:00 AM, 4:00 PM, 8:00 PM and 12:00 PM. Throughout the study, all adverse events were recorded and monitored by the investigators. Results: In 31 POAG patients that completed the study ,mean baseline IOP was 23.1&plusmn;3.15 mmHg . IOP was decreased significantly 16.5 &plusmn; 2.21 at 1 month (P &lt; 0.0001) and 13.9 &plusmn; 2.23 mmHg at 1 and 2 month follow up. (P &lt; 0.0001) IOP was significantly lower in month 2 compared to month 1 (P = 0.0004). While Cosopt BID significantly reduced the mean 24-hour systolic BP and mean 24-hour HR from baseline (P &lt; 0.0001), the mean 24-hour systolic BP and HR remained unchanged 2ith Cosopt TDS compared to BID (P = 0.62). Conclusions: Cosopt TDS has a superior IOP-lowering effect than Cosopt BID in POAG patients with comparable safety profile.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;

scholarly journals Primary Outcomes of Combined Cataract Extraction Technique with Ab-interno Trabeculectomy  and Endoscopic Cyclophotocoagulation  in Patients with Primary Open Angle Glaucoma

2020 ◽  
Author(s):  
Juan Carlos Izquierdo ◽  
Josefina Mejias ◽  
Laura Cañola ◽  
Natalia Agudelo ◽  
Barbara Rubio
Keyword(s):  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Glaucoma Surgery ◽  
Open Angle ◽  
Surgical Success ◽  
Corrected Visual Acuity ◽  
Ab Interno Trabeculectomy ◽  
The Mean ◽  
Best Corrected Visual Acuity ◽  
Ab Interno

Abstract Background: Glaucoma surgery have been developed to lower intraocular pressure in a less invasive manner than traditional glaucoma surgery. The purpose of this article is to determine the outcome of using combined phacoemulsification technique, ab-interno trabeculectomy dual blade and endoscopic cyclophotocoagulation (ECP) surgeries in patients with primary open angle glaucoma. Methods: A retrospective case series was performed on 27 consecutive eyes with both primary open-angle glaucoma (POAG) and cataract; each eye was treated with combined phacoemulsification, ab-interno trabeculectomy-Kahook Dual Blade and Endocyclophotocoagulation at Instituto de ojos Oftalmosalud, Lima, Peru, between April 2017 and May 2017. Inclusion criteria: 1) Patients with uncontrolled mild to advanced POAG (according to Glaucoma Grading Scale HODAPP) 2) cataract condition 3) treatment with two or more glaucoma medications due to rapid progression in the visual fields (at least two in a short period of time). Intraocular pressure (IOP), best corrected visual acuity (BCVA) logMAR and number of glaucoma medications were recorded prior to the study, at day 1, week 1, and 1,3,6 and 9 months after surgery. Primary outcome measure was surgical success defined in terms of IOP <14 mmHg either with no medications (complete success) or with medications (qualified success). Results: A total of 27 eyes from 27 patients were included. The mean basal IOP was 17.0±3.7 mmHg and postoperatively was 11.6±1.9 mmHg and 11.4±1.8 mmHg (P<0.001) at 6 and 9 months respectively. Glaucoma medications decreased from 1.9±1.4 to 0.56±1.05 at 9 month follow-ups (P<0.001). Preoperative best corrected visual acuity (BCVA) showed and improvement from 0.4± 0.4 LogMAR to 0.2 ± 0.4 logMAR at 9 months. The main complication was blood reflux intra-operatively (66.7%), which resolved without re-operation. The mean IOP was reduced by 32.9% from baseline and the surgical success was 92,6%, (complete success 70,3% and qualified success 29,6%) at 9 months.Conclusions: In patients with POAG, combined treatment with phacoemulsification, ab-interno trabeculectomy and endoscopic cyclophotocoagulation effectively reduced IOP and glaucoma medication dependence.

scholarly journals Primary Outcomes of combined cataract extraction technique with ab-interno trabeculectomy  Dual-Blade and Endoscopic cyclophotocoagulation in patients with primary open angle glaucoma

2019 ◽  
Author(s):  
Juan Carlos Izquierdo ◽  
Josefina Mejias ◽  
Laura Cañola ◽  
Natalia Agudelo ◽  
Barbara Rubio
Keyword(s):  
Visual Acuity ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Cataract Extraction ◽  
Open Angle ◽  
Corrected Visual Acuity ◽  
Ab Interno Trabeculectomy ◽  
The Mean ◽  
Best Corrected Visual Acuity ◽  
Ab Interno

Abstract Purpose:  To provide an update of primary outcomes of combined phacoemulsification technique with ab-interno trabeculectomy  Dual Blade and Endoscopic cyclophotocoagulation (ECP) in patients with primary open angle glaucoma. Methods: Retrospective case series comprised 27 consecutive eyes, with open-angle glaucoma (POAG) and cataract with combined phacoemulsification, ab-interno trabeculectomy-Kahook Dual Blade and Endocyclophotocoagulation at Instituto de ojos Oftalmosalud, Lima, Perú, between April 2017 and May 2017. Inclusion criteria were Glaucoma patients with POAG from mild to severe, according to Glaucoma Grading Scale (HODAPP), cataract condition, treatment with two or more glaucoma medications and visual field defects continued worsen. Intraocular pressure (IOP), Best corrected visual acuity (BCVA) logMAR, and number of glaucoma medications were recorded before, and 1 day, 1 week, and 1, 3, 6 and 9 months after surgery. Defining succes as IOP <14 mmHg with or without medications. Results:  A total of 27 cases of glaucoma eyes were included. The mean IOP was 17.0±3.7 mmHg preoperatively, 11.6±1.9mmHg at 6 months, and 11.4±1.8 mmHg at 9 months(P<0.001). There was a corresponding drop in glaucoma medications from 1.9±1.41 at mean to 0.56±1.05 at 9 months (P<0.001). Preoperative best corrected visual acuity (BCVA) showed and improvement preoperative value from 0.4± 0.4 LogMAR (p= 0.001) to 0.2 ± 0.4 logMAR at 9 months. The main complication was blood reflux intraoperatively(66.7%), resolved within a few days. The mean IOP was reduce 32.9% from baseline and the qualifed succes was 92.6% at 9 months. Conclusions:  Cataract extraction with phacoemulsification combined with ab-interno trabeculectomy Dual Blade and endoscopic Cyclophotocoagulation effectively lowered IOP and dependence on glaucoma medications.

Results of a new modification of anti-glaucoma surgery in the treatment of primary open-angle glaucoma in combination with cataract

2021 ◽  
pp. 67-70
Author(s):  
M.M. Bikbov ◽  
◽  
O.I. Orenburgkina ◽  
A.E. Babushkin ◽  
G.Z. Israfilova ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Glaucoma Surgery ◽  
Hypotensive Effect ◽  
Open Angle ◽  
Visual Functions ◽  
Group 2 ◽  
Group 1

Purpose. To study the effectiveness of the developed partially fistulizing glaucoma surgery in the treatment of primary open-angle glaucoma (POAG) in combination with complicated cataract. Material and methods. 28 patients (28 eyes) were examined, including 13 patients (13 eyes) with I–III stages of POAG, operated according to the method of glaucoma surgery developed by us (group 1), and 15 patients (15 eyes) with a combination of previously unoperated glaucoma with incomplete complicated cataracts, who underwent a combined intervention – simultaneous phacoemulsification of cataracts with the specified variant of partially fistulizing glaucoma intervention (group 2). The analysis of the frequency of complications, the dynamics of visual functions, visual acuity and ophthalmotonus before surgery, at the time of discharge from the hospital, and in the longterm (6–9 months) after surgery was carried out. Results. In group 1, in the long term, the absolute hypotensive effect was recorded in 81.8% of cases, visual functions remained the same – in 90.9%. In group 2, by the end of follow – up, the level of normalized intraocular pressure was recorded in all patients, while in 78.6% of cases without drug correction and in 21.4% – with the help of antihypertensive drugs. Visual acuity in group 2, after a single-stage combined operation by the day of discharge from the hospital, averaged 0.53±0.05, in the long-term – 0.77±0.06, while the stabilization of glaucoma optic neuropathy after surgery occurred in 92.9%. Conclusion. Glaucoma surgery according to the proposed method in the studied long-term periods in patients with POAG provided a sufficiently high hypotensive effect and the preservation of visual functions. Combined single-stage intervention was an effective way to increase visual acuity, normalize ophthalmotonus and stabilize glaucoma optic neuropathy, as well as reduce drug load. Key words: primary open-angle glaucoma, cataract, partially fistulizing glaucoma surgery, cataract phacoemulsification.

scholarly journals 360-degree suture trabeculotomy ab interno with phacoemulsification in open-angle glaucoma and coexisting cataract: a pilot study

2018 ◽  
Vol 3 (1) ◽  
pp. e000159 ◽  
Author(s):  
Tomoki Sato ◽  
Takahiro Kawaji ◽  
Akira Hirata ◽  
Takanori Mizoguchi
Keyword(s):  
Outcome Measures ◽  
Open Angle Glaucoma ◽  
Pilot Trial ◽  
Secondary Outcome ◽  
Open Angle ◽  
Success Rates ◽  
Control Groups ◽  
Criterion A ◽  
And Control ◽  
Ab Interno

ObjectiveWe performed a pilot trial to evaluate the 24-month safety and efficacy of 360-degree suture trabeculotomy ab interno with phacoemulsification used to treat mild to moderate open-angle glaucoma coexisting with cataract.Methods and analysisWe randomly assigned 18 eyes with open-angle glaucoma and coexisting cataract to undergo 360-degree suture trabeculotomy ab interno with phacoemulsification (combined) or phacoemulsification alone (control) (1:1 ratio) and followed up patients for 24 months. Main outcome measures were mean postoperative intraocular pressure (IOP) and success probabilities based on Kaplan-Meier life table analyses. Surgical success was defined as follows: criterion A: IOP value ≥6  mm Hg and ≤15  mm Hg, with ≥20 % reduction without medication; criterion B: IOP value ≥6  mm Hg and ≤12  mm Hg, with ≥30% reduction without medication. Secondary outcome measures included the number of medications, complications and best-corrected visual acuity.ResultsMean IOP values (number of medications), which were 18.4  mm Hg (0.9) and 17.1  mm Hg (1.3) at baseline, showed significant reductions to 11.8  mm Hg (1.0) and 14.6  mm Hg (1.5) at 24 months postoperatively in the combined and control groups, respectively (p=0.0003  and 0.0192, respectively). Success rates for criterion A in the combined and control groups were 77.8% and 11.1%, respectively (p=0.0110) and those for criterion B in the combined and control groups were 46.7% and 0%, respectively (p=0.0036). Both groups had a similar overall occurrence of postoperative complications.ConclusionUsing 360-degree suture trabeculotomy ab interno with phacoemulsification appeared to be a more beneficial option for mild to moderate open-angle glaucoma with coexisting cataract than phacoemulsification alone.Trial registration numberUMIN000021170, date of registration: 2016/03/01.

scholarly journals Effects of Preoperative Intraocular Pressure Level on Surgical Results of Microhook Ab Interno Trabeculotomy

2021 ◽  
Vol 10 (15) ◽  
pp. 3327
Author(s):  
Masaki Tanito ◽  
Kazunobu Sugihara ◽  
Aika Tsutsui ◽  
Katsunori Hara ◽  
Kaoru Manabe ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Success Rate ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Pressure Level ◽  
Surgical Results ◽  
Open Angle ◽  
Success Rates ◽  
Factors Associated ◽  
Ab Interno

To assess the roles of preoperative intraocular pressure (IOP) level on the IOP reducing efficacy of microhook ab interno trabeculotomy (µLOT), 126 consecutive open-angle glaucomatous eyes (90 primary open angle glaucoma, 36 exfoliation glaucoma) of 126 Japanese subjects (60 men, 66 women; mean age ± standard deviation, 70.5 ± 11.4 years) who underwent µLOT alone (25 eyes, 20%) or combined µLOT and cataract surgery (101 eyes, 80%) were retrospectively included, and subdivided into four groups based on the quartile of preoperative IOP: Q1, ≤15 mmHg; Q2, 15–18 mmHg, Q3, 18–21 mmHg, and Q4, >21 mmHg. Preoperative and 12 months postoperative IOPs and numbers of antiglaucoma medications were compared among IOP groups. Factors associated with postoperative IOP were assessed using multivariate analysis, and the success of IOP control was assessed with various definitions. Postoperatively, IOP was significantly higher in Q3 (p < 0.0146) and Q4 (p = 0.0320) groups than Q1 group, while the number of medications was not significantly different among four IOP groups (p = 0.1966). Older age was associated with lower postoperative IOP, and higher preoperative IOP was associated with higher postoperative IOP, while sex, glaucoma type, surgical procedure, lens status, extent of trabeculotomy incision, and preoperative number of medications were not associated with postoperative IOP. The success rates for IOP ≤ 18 and ≤15 mmHg were higher in lower preoperative IOP groups (i.e., Q1 and Q2) than higher preoperative IOP groups (Q3 and Q4), while the success rate for ≥20% IOP reduction was higher in higher preoperative IOP groups than in lower preoperative IOP groups; the success rate for ≥0% IOP reduction was equivalent among groups. By reviewing the previous studies in ab interno trabeculotomy/goniotomy procedures, positive correlation between preoperative and postoperative IOPs was preserved throughout the studies and surgical procedures. After the µLOT, larger %IOP reduction was achieved in higher preoperative IOP groups than in lower preoperative IOP groups, while postoperative IOP was still lower than in lower preoperative IOP groups.

scholarly journals A spectrofluorimetric study of the limbal area in patients with primary open-angle glaucoma

2021 ◽  
Vol 14 (4) ◽  
pp. 60-64
Author(s):  
V. V. Neroev ◽  
V. V. Gar’kavenko ◽  
V. V. Salmin
Keyword(s):  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Beta Blockers ◽  
Early Postoperative Period ◽  
Open Angle ◽  
Limbal Area ◽  
Advanced Stages ◽  
Group 2 ◽  
Hypoxic State ◽  
Group 1

Purpose: to evaluate hypoxic changes in the limbus area conjunctiva of patients with primary open-angle glaucoma (POAG) treated with prolonged instillations of prostaglandin (PG) analogs. Material and methods. A spectrofluorimetric study of the limbus zone was carried out in 202 patients aged 56–87 years with POAG in the developed and advanced stages, divided into 2 groups. Group 1 consisted of patients aged 69.4 ± 10.3 years who received beta-blockers (BB) and carbonic anhydrase inhibitors (ICA) for 5–10 months; of these, 39 (30.2 %) had a developed stage of POAG and 90 (69.7 %) had advanced POAG. Group 2, aged 72.3 ± 9.4, received PG analogs, in addition to BB and ICA, for 5–10 months. In this group, 21 (28.7 %) patients had developed POAG and 52 (71.23 %) had advanced POAG. Results. The patients who received PG instillations showed a significantly higher ratio of fluorescence intensity in the wavelength range of 410/520 nm NADH/FAD (0.352 ± 0.043) than those receiving no such therapy (0.319 ± 0.047), which can be interpreted as a hypoxic state of the limbus area. Conclusion. Spectrofluorimetric testing of POAG patients taking PG analogs can be useful for detecting ischemia in the limbus area, because this category of patients are very likely to form cicatricial changes in the area of the filtration cushion in the early postoperative period after antiglaucomatous interventions.

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