cloprostenol and Conjunctival-Diseases

cloprostenol has been researched along with Conjunctival-Diseases* in 13 studies

Reviews

3 review(s) available for cloprostenol and Conjunctival-Diseases

ArticleYear
Conjunctival hyperaemia with the use of latanoprost versus other prostaglandin analogues in patients with ocular hypertension or glaucoma: a meta-analysis of randomised clinical trials.
    The British journal of ophthalmology, 2009, Volume: 93, Issue:3

    To conduct a meta-analysis of randomised clinical trials (RCTs) in order to evaluate the development of conjunctival hyperaemia after the use of latanoprost versus travoprost and bimatoprost, in patients with ocular hypertension or glaucoma.. In order to identify the potentially relevant RCTs, a systematic literature retrieval was conducted in Medline, Embase and Cochrane Controlled Trials Register (1995-April 2007) databases The outcome measure was the appearance of conjunctival hyperaemia during the study. Statistical analyses included the calculation of odds ratio (OR) and its respective confidence interval, along with intertrial statistical heterogeneity. Publication bias was evaluated through a funnel plot, and a sensitivity analysis was also performed.. In total, 13 RCTs involving 2222 patients with ocular hypertension or glaucoma were included, five comparing latanoprost versus travoprost, seven comparing latanoprost versus bimatoprost and one comparing latanoprost versus travoprost and bimatoprost. The combined results showed that latanoprost produced lower occurrence of conjunctival hyperaemia than both travoprost (OR = 0.51; 95% CI 0.39 to 0.67, p<0.0001) and bimatoprost (OR = 0.32; 95% CI 0.24 to 0.42, p<0.0001). No significant heterogeneity was found between the included RCTs. There was no evidence of publication bias. In the sensitivity analysis performed, none of the clinical trials included in this meta-analysis has an important impact in the global estimation of OR.. According to available data, the use of latanoprost is associated with a lower incidence of conjunctival hyperaemia when compared with travoprost and bimatoprost in the treatment of patients with ocular hypertension or glaucoma.

    Topics: Aged; Amides; Antihypertensive Agents; Bimatoprost; Cloprostenol; Conjunctival Diseases; Female; Glaucoma; Humans; Hyperemia; Latanoprost; Male; Middle Aged; Ocular Hypertension; Prostaglandins F, Synthetic; Prostaglandins, Synthetic; Randomized Controlled Trials as Topic; Travoprost

2009
[Development of conjunctival hyperemia with the use of a fixed combination of latanoprost/timolol: systematic review and meta-analysis of clinical trials].
    Archivos de la Sociedad Espanola de Oftalmologia, 2009, Volume: 84, Issue:4

    To asses the association of conjunctival hyperemia with the use of a fixed combination of latanoprost/timolol, through a systematic review and meta-analysis of clinical trials in patients with glaucoma.. A systematic review of published clinical trials of latanoprost/timolol and other competitors was conducted in Medline, Embasse and Cochrane Controlled Clinical Trials Register, between 2000 and 2007. Statistical analysis included calculation of the odds ratio (OR) with its 95% confidence interval (CI) using the fixed effects model of Mantel-Haenszel and the random effects model of Der Simonian and Laird. To assess the heterogeneity between trials the Cochrane Q test and the I(2) rate were calculated. The conjunctival hyperemia rates obtained were compared with the Chi-square test.. A total of 8 clinical trials comparing latanoprost/timolol fixed combination with different therapeutic options were found. As trial heterogeneity was moderate (Q: 14.64; df=7; p=0.041; I(2)= 52.2%) a random effects model was used. The final OR was 0.47 (CI 95%: 0.24-0.90); p = 0.024. The total conjunctival hyperemia incidence was 2.9% in the latanoprost/timolol group and 7.0% for the competitors (p<0.0001).. The use of a fixed combination of latanoprost/timolol is associated with a significant reduction (53%; CI 95%: 10%-76%) in the development of conjunctival hyperemia against the other compared options for the treatment of glaucoma.

    Topics: Aged; Brimonidine Tartrate; Clinical Trials as Topic; Cloprostenol; Conjunctival Diseases; Cross-Over Studies; Drug Combinations; Drug Therapy, Combination; Glaucoma; Humans; Hyperemia; Latanoprost; Middle Aged; Ocular Hypertension; Odds Ratio; Prostaglandins F, Synthetic; Quinoxalines; Sulfonamides; Thiazines; Timolol; Travoprost

2009
Topical bimatoprost: a review of its use in open-angle glaucoma and ocular hypertension.
    Drugs & aging, 2002, Volume: 19, Issue:3

    Bimatoprost, a synthetic prostamide analogue, is a new ocular hypotensive agent indicated for the second-line treatment of open-angle glaucoma and ocular hypertension. The drug is formulated as a 0.03% ophthalmic solution. Bimatoprost lowers intraocular pressure (IOP) by increasing aqueous humour outflow. When applied topically once daily in patients with ocular hypertension or glaucoma, bimatoprost 0.03% significantly reduced IOP. Mean IOP was reduced by approximately 7.5 to 9.2mm Hg 12 hours after drug administration in randomised clinical trials. The reduction in IOP was maintained throughout the 24-hour dosage interval. Once-daily treatment with bimatoprost 0.03% was found to be significantly more effective than timolol 0.5% (administered twice daily as an ophthalmic solution or once daily as a gel-forming solution) in randomised comparative trials in patients with ocular hypertension and glaucoma. Furthermore, after 1 to 6 months' treatment, the percentage of patients reaching a target IOP of < or =17mm Hg was significantly greater in the bimatoprost-treated groups than in those receiving timolol. Bimatoprost 0.03% ophthalmic solution was found to be at least as effective as topical latanoprost 0.005% administered once daily in two clinical trials. Reductions in IOP 16 and 20 hours postdose were greater in patients treated with bimatoprost, indicating superior control of IOP at timepoints throughout the dosage interval. In patients refractory to beta-blocker therapy, treatment with bimatoprost 0.03% produced greater reductions in diurnal IOP measurements than combination therapy with topical dorzolamide 2%/timolol 0.5%; approximately twice as many bimatoprost 0.03% recipients achieved an IOP of < or =16mm Hg. The most commonly reported adverse effect during clinical trials of once-daily bimatoprost 0.03% was conjunctival hyperaemia which occurred in 42 to 46% of patients treated. However, most cases were mild and only 1 to 4% of patients withdrew from treatment as a result. Overall withdrawal rates as a result of adverse events during clinical trials ranged from 2.6 to 7%. Bimatoprost has been reported to cause changes in the pigmentation of the periorbital skin, eyelashes and iris, and increase eyelash growth. The long-term consequences of these effects are unknown. Cardiopulmonary adverse effects, which have been associated with the use of beta-blockers such as timolol, were not reported in clinical trials of bimatoprost. Thus, in clinical trials o

    Topics: Administration, Topical; Amides; Antihypertensive Agents; Bimatoprost; Cloprostenol; Conjunctival Diseases; Dose-Response Relationship, Drug; Drug Therapy, Combination; Glaucoma, Open-Angle; Intraocular Pressure; Latanoprost; Lipids; Ocular Hypertension; Prostaglandins F, Synthetic; Randomized Controlled Trials as Topic; Sulfonamides; Thiophenes; Timolol; Treatment Outcome

2002

Trials

5 trial(s) available for cloprostenol and Conjunctival-Diseases

ArticleYear
Ocular surface tolerability of prostaglandin analogs and prostamides in patients with glaucoma or ocular hypertension.
    Advances in therapy, 2013, Volume: 30, Issue:3

    There has been increased attention on the potential impact of the preservative benzalkonium chloride (BAK) on the ocular surface. This study compared the ocular surface tolerability of once-daily bimatoprost 0.01% and latanoprost 0.005% (both preserved with 0.02% BAK), and travoprost 0.004% preserved with sofZia™.. A randomized, multicenter (15 sites), investigator-masked study enrolled patients with open-angle glaucoma or ocular hypertension who had received latanoprost monotherapy for at least 1 month. Patients were randomized to oncedaily bimatoprost (n = 56), travoprost (n = 53), or latanoprost (n = 55) monotherapy for 3 months. Follow-up visits were at weeks 1, 4, and 12. The primary outcome measure was physician-graded conjunctival hyperemia (scale 0 to 3) at week 12. Secondary outcomes included corneal staining (scale 0 to 3) and tear break-up time (TBUT).. There were no significant differences in mean (standard deviation [SD]) outcome measures including conjunctival hyperemia (bimatoprost: 0.48 [0.52], travoprost: 0.49 [0.52], latanoprost: 0.51 [0.54]), corneal staining (bimatoprost: 0.31 [0.49], travoprost: 0.25 [0.46], latanoprost: 0.24 [0.45]), or TBUT (bimatoprost: 9.7 s [6.1], travoprost: 9.5 s [5.8], latanoprost: 9.8 s [5.0]) among subjects at latanoprost-treated baseline (P ≥ 0.664). At week 12, there were no significant differences in conjunctival hyperemia (bimatoprost: 0.42 [0.48], travoprost: 0.46 [0.44], latanoprost: 0.44 [0.57]), corneal staining (bimatoprost: 0.31 [0.45], travoprost: 0.32 [0.48], latanoprost: 0.22 [0.30]), or TBUT (bimatoprost: 9.7 s [5.7], travoprost 9.7 s [5.0], latanoprost: 9.3 s [4.0]) among the treatment groups (P ≥ 0.379). At week 1, there was a statistically significant among-group difference in mean change from baseline in hyperemia (+0.04, bimatoprost; +0.20, travoprost; 0.00, latanoprost; P = 0.018). There were no statistically significant among-group differences in mean corneal staining, mean TBUT, or change from baseline at any visit.. Despite preservative differences, there were no significant differences in objective clinical measures of ocular surface tolerability after 3 months of treatment with bimatoprost (with 0.02% BAK), travoprost (with sofZia), and latanoprost (with 0.02% BAK).

    Topics: Aged; Amides; Benzalkonium Compounds; Bimatoprost; Cloprostenol; Conjunctival Diseases; Female; Glaucoma, Open-Angle; Humans; Hyperemia; Latanoprost; Male; Middle Aged; Ocular Hypertension; Preservatives, Pharmaceutical; Prostaglandins F, Synthetic; Prostaglandins, Synthetic; Travoprost

2013
Effects of SofZia-preserved travoprost and benzalkonium chloride-preserved latanoprost on the ocular surface -- a multicentre randomized single-masked study.
    Acta ophthalmologica, 2013, Volume: 91, Issue:1

    To assess the effect of SofZia-preserved travoprost on ocular surface conditions in comparison with benzalkonium chloride (BAK)-preserved latanoprost.. A prospective randomized multicentre single-masked comparative study. Patients with open-angle glaucoma or ocular hypertension who had been treated with BAK-preserved latanoprost 0.005% (Xalatan(®) ) monotherapy for at least 3 months. Patients were enrolled at 23 facilities. Patients were randomly divided into the X-X group, continuous use of Xalatan(®) , or the X-T group, switching from Xalatan(®) to SofZia-preserved travoprost 0.004% (TravatanZ(®) ), and followed for 3 months. The superficial punctate keratopathy (SPK), conjunctival epitheliopathy, hyperaemia, tear break-up time (TBUT) and intraocular pressure (IOP) were examined for each patient in a masked manner. Changes in the frequency of keratoconjunctival epitheliopathy were evaluated 3 months after study initiation. Intra- and intergroup comparisons of changes in SPK, conjunctival epitheliopathy, hyperaemia, TBUT and IOP were also carried out.. Two hundred twenty patients participated and 215 completed the 3-month study. The frequency of keratoconjunctival epitheliopathy significantly decreased in the X-T group (p = 0.036) and the intergroup difference was also significant (p = 0.001). SPK scores and TBUT were significantly improved in the X-T group (p = 0.034, 0.049), also with significant intergroup differences in the cornea excluding the inferior area and TBUT. There were no significant intergroup differences in changes of the hyperaemia scores and the IOP reduction.. Switching to SofZia-preserved travoprost after BAK-preserved latanoprost resulted in a lower incidence of keratoconjunctival epitheliopathy, especially in the cornea, with no clinically relevant changes in hyperaemia and IOP.

    Topics: Antihypertensive Agents; Benzalkonium Compounds; Cloprostenol; Conjunctiva; Conjunctival Diseases; Cornea; Corneal Diseases; Female; Glaucoma, Open-Angle; Humans; Intraocular Pressure; Latanoprost; Male; Middle Aged; Ocular Hypertension; Ophthalmic Solutions; Preservatives, Pharmaceutical; Prospective Studies; Prostaglandins F, Synthetic; Single-Blind Method; Tonometry, Ocular; Travoprost; Treatment Outcome

2013
Long-term efficacy and safety of bimatoprost for intraocular pressure lowering in glaucoma and ocular hypertension: year 4.
    The British journal of ophthalmology, 2008, Volume: 92, Issue:10

    Bimatoprost 0.03% has been shown to consistently reduce mean intraocular pressure (IOP) more than timolol 0.5% over 2 years. To further evaluate long-term safety and efficacy, once-daily bimatoprost 0.03% was compared with timolol 0.5% twice daily through year 4.. In this multicentre, double-masked, randomised, controlled trial, glaucoma and ocular hypertension patients (n = 152) who completed phase III bimatoprost trials through month 36 were enrolled in a study extension through month 48. Patients randomised to bimatoprost once daily (n = 78) or timolol twice daily (n = 35) continued on the same regimen for a fourth year. Patients randomised to bimatoprost twice daily had been switched to bimatoprost once daily dosing at month 24 (bimatoprost twice daily/once daily treatment group), and continued with once daily dosing through month 48 (n = 39). IOP was measured at 08:00 and 10:00 at months 39, 42, 45 and 48. Safety measures included adverse events, biomicroscopy, ophthalmoscopy, visual acuity and visual field.. Baseline IOP was comparable among groups. During year 4, mean IOP reductions from baseline were 7.0 to 8.1 mm Hg with bimatoprost once daily and 6.5 to 7.9 mm Hg with bimatoprost twice daily/once daily, significantly greater than with timolol twice daily (3.8 to 5.8 mm Hg, p< or =0.035) at all measurements. Over 4 years, the mean IOP reduction from baseline at 08:00 and 10:00 was 1.9 to 3.9 mm Hg (35% to 100%) greater with bimatoprost once daily than with timolol (p< or =0.013). Low IOPs were achieved by more bimatoprost than timolol patients (p< or =0.042). No safety concerns developed during long-term bimatoprost treatment; two patients in the timolol treatment group discontinued after month 36 because of adverse events. The most common treatment-related adverse event in the bimatoprost treatment groups was conjunctival hyperaemia.. Bimatoprost once daily provided sustained IOP lowering greater than timolol twice daily and was well tolerated over long-term use.

    Topics: Amides; Analysis of Variance; Bimatoprost; Cloprostenol; Conjunctival Diseases; Double-Blind Method; Drug Administration Schedule; Female; Glaucoma; Humans; Intraocular Pressure; Male; Middle Aged; Ocular Hypertension; Timolol; Treatment Outcome; Visual Acuity

2008
Conjunctival hyperaemia and other ocular adverse effects on healthy African subjects after single dosing with 0.004% Travoprost.
    African journal of medicine and medical sciences, 2007, Volume: 36, Issue:1

    Conjunctival hyperaemia and ocular adverse effects induced by a single dose of 0.004% travoprost in healthy subjects were evaluated. A randomized, double-blind cross-over placebo controlled study was done. Conjunctival hyperaemia was evaluated clinically at 12, 24, 36 and 72 hours after dosing and volunteers reported all ocular adverse effects. 15 out of 20 subjects (70%) dosed with travoprost compared with 2 out of 20 (10%) dosed with placebo developed clinically moderate hyperaemia. However, significant difference in hyperaemia in the two groups occurred only at 24 hours (P < 0.048). The hyperaemia cleared by 72 hours. Travoprost may cause significantly short-term conjunctival hyperaemia even after a single dose in the eyes of healthy African subjects.

    Topics: Adult; Antihypertensive Agents; Cloprostenol; Conjunctival Diseases; Cross-Over Studies; Dose-Response Relationship, Drug; Double-Blind Method; Follow-Up Studies; Humans; Hyperemia; Male; Nigeria; Ocular Hypertension; Ophthalmic Solutions; Prognosis; Prospective Studies; Reference Values; Risk Factors; Travoprost

2007
Conjunctival hyperemia in healthy subjects after short-term dosing with latanoprost, bimatoprost, and travoprost.
    American journal of ophthalmology, 2003, Volume: 135, Issue:3

    To evaluate conjunctival hyperemia after short-term use of latanoprost 0.005%, bimatoprost 0.03% and travoprost 0.004% in normal adults.. Prospective, randomized, double-masked crossover active controlled comparison.. We evaluated conjunctival hyperemia by a standard photographic measure at the slit lamp and by anterior segment photographs in healthy subjects after dosing for 5 days with latanoprost, bimatoprost, or travoprost. Conjunctival hyperemia was evaluated at 24-hour trough (hour 0) and at hour 1 after dosing. Each subject was crossed over between periods after a 1-week washout interval.. Twenty-eight subjects (mean age 26 +/- 9 years) completed this study. Several comparisons were noted to be significant between groups by slit-lamp biomicroscopy: first, at hour 0 latanoprost had significantly less hyperemia than bimatoprost; second, at hour 0 latanoprost showed significantly less change than bimatoprost compared with the study baseline (visit 2); third, at hour 1 latanoprost had significantly less hyperemia than travoprost; fourth, at hour 1 latanoprost demonstrated significantly less change from baseline in hyperemia than travoprost (visit 2); fifth, at hour 1 latanoprost had less change in hyperemia than bimatoprost or travoprost between the study and the nonstudy eye (P = .03); and last, at hour 1 latanoprost showed significantly less change than bimatoprost and travoprost compared with hour 0 (P = .04). Additionally, similar grades were observed by photographs with latanoprost demonstrating the lowest levels of hyperemia. Subjects complained less about other people noticing their red eye with latanoprost than bimatoprost or travoprost (P = .048). No serious adverse events were noted.. This study suggests that latanoprost may cause significantly less short-term conjunctival hyperemia on average than bimatoprost or travoprost in healthy subjects.

    Topics: Adult; Amides; Antihypertensive Agents; Bimatoprost; Cloprostenol; Conjunctiva; Conjunctival Diseases; Cross-Over Studies; Double-Blind Method; Female; Humans; Hyperemia; Intraocular Pressure; Latanoprost; Lipids; Male; Prospective Studies; Prostaglandins F, Synthetic; Time Factors; Travoprost

2003

Other Studies

5 other study(ies) available for cloprostenol and Conjunctival-Diseases

ArticleYear
Intraocular pressure-lowering efficacy and safety of bimatoprost 0.03% therapy for primary open-angle glaucoma and ocular hypertension patients in China.
    BMC ophthalmology, 2014, Feb-25, Volume: 14

    To report the clinical outcomes in Chinese patients with primary open-angle glaucoma and ocular hypertension treated with bimatoprost 0.03% therapy.. Two hundred sixty-three Chinese patients with primary open-angle glaucoma and ocular hypertension who needed initial or additional intraocular pressure (IOP) lowering were recruited in this prospective, open-label, multicenter clinical study and were treated with bimatoprost 0.03%. Patients received bimatoprost 0.03% as initial, replacement or adjunctive IOP-lowering therapy, and follow-up visits were performed at week 1, and month 1 and 3 of the bimatoprost treatment. The efficacy outcome measure was the post-treatment IOP level. The safety outcome measures included the rate of medication-related symptoms, physical signs, reported adverse events, and the level of conjunctival hyperemia.. Among 240 patients who could be categorized by pre-existing therapies and the bimatoprost therapy regimen in the study, IOP values observed in all medication conditions showed significant IOP reduction at all study visits compared with baseline. At 3 months, 8.0 ± 3.7 mmHg (32.0%) reduction in IOP was observed in treatment-naive patients after bimatoprost monotherapy; in the patients previously on various therapy regimens, 1.9 ± 2.8 mmHg (9.5%) to 6.4 ± 6.1 mmHg (24.8%) additional IOP lowering was achieved after switching to bimatoprost monotherapy or bimatoprost combination therapy. The most common adverse event was conjunctival hyperemia, mainly of trace and mild intensity.. Our results show that bimatoprost 0.03% was effective in lowering IOP with favorable safety in Chinese primary open-angle glaucoma and ocular hypertension patients.

    Topics: Adult; Aged; Amides; Antihypertensive Agents; Bimatoprost; China; Cloprostenol; Conjunctival Diseases; Female; Glaucoma, Open-Angle; Humans; Hyperemia; Intraocular Pressure; Male; Middle Aged; Ocular Hypertension; Prospective Studies

2014
Toxic-inflammatory effects of prostoglandin analogs on the ocular surface.
    Ocular immunology and inflammation, 2013, Volume: 21, Issue:1

    To investigate the toxic-inflammatory effects of prostaglandin analogs on the ocular surface.. Twenty-three rats were divided into four groups. Bimatoprost 0.03% (I), latanoprost 0.005% (II), and travoprost 0.004% (III) were applied during 6 months; a control group (IV) received no treatment. Dysplasia and keratinization were evaluated on the ocular surface. In the subepithelial area, the number of lymphocytes and mast cells were counted morphologically, and collagen staining densities were compared subjectively in groups.. The ratio of keratinization was 3/12 and 1/10, in groups I and II. The lymphocyte cell counts were 1.4 ± 0.19, 2.2 ± 0.39, 2.27 ± 0.33, and 1.87 ± 0.35 (p > .05). The mast cell counts were 2.58 ± 0.5, 5.4 ± 1.1, 5.7 ± 0.58, and 3.0 ± 0.59. They were significantly higher in groups II and III than in group I (p < .05). Mean collagen density scores were 1.00 ± 0.85, 2.00 ± 0.00, and 1,73 ± 0.70. Group II and III scores were higher than group I scores (p < .05).. Latanoprost and travoprost seem to have more toxic-inflammatory effects on the ocular surface than bimatoprost.

    Topics: Amides; Animals; Antihypertensive Agents; Bimatoprost; Cloprostenol; Conjunctiva; Conjunctival Diseases; Cornea; Corneal Diseases; Disease Models, Animal; Follow-Up Studies; Glaucoma; Intraocular Pressure; Latanoprost; Male; Ophthalmic Solutions; Prostaglandins F, Synthetic; Prostaglandins, Synthetic; Rats; Rats, Wistar; Travoprost

2013
Long-term effect of BAK-free travoprost on ocular surface and intraocular pressure in glaucoma patients after transition from latanoprost.
    Journal of glaucoma, 2012, Volume: 21, Issue:1

    To assess the efficacy and tolerability of benzalkonium chloride (BAK)-free travoprost after transition from BAK-preserved latanoprost.. This was a prospective, open-label, multicenter study in patients with open-angle glaucoma or ocular hypertension who had been treated with latanoprost monotherapy for at least 3 months. The main outcome measures were superficial punctate keratopathy (SPK), hyperemia, and intraocular pressure (IOP). At baseline, 1, 3, and 12 months, hyperemia, SPK, and IOP were consecutively assessed. Hyperemia was assessed using a 4-grade scale. SPK was assessed by fluorescence staining observed by Area-Density classification. The IOP was measured by Goldmann applanation tonometry.. One hundred and fourteen patients participated in this study. Twenty-eight patients discontinued medications by 1 month. Sixty-seven patients completed the study. Transition from latanoprost to BAK-free travoprost showed no significant effect on hyperemia at 1 month, but showed significant decreases at 3 and 12 months compared with baseline (P<0.05). The prevalence of SPK, especially its severity score, at all points were significantly reduced compared with baseline (P<0.05). The IOP at baseline and at 12 months after transition was 14.9±3.4 and 14.3±3.3 mm Hg, indicating a significant reduction after the change in regimen compared with baseline (P<0.05).. Treatment for 12 months with BAK-free travoprost after BAK-preserved latanoprost resulted in fewer ocular surface complications, as indicated by the reduced prevalence of SPK and decreased hyperemia, and no clinically relevant changes in IOP. BAK-free travoprost may have beneficial effects on the ocular surface while showing IOP-lowering efficacy comparable with BAK-preserved eye drops.

    Topics: Aged; Antihypertensive Agents; Benzalkonium Compounds; Cloprostenol; Conjunctival Diseases; Cornea; Corneal Diseases; Female; Follow-Up Studies; Glaucoma, Open-Angle; Humans; Intraocular Pressure; Latanoprost; Male; Ocular Hypertension; Ophthalmic Solutions; Preservatives, Pharmaceutical; Prospective Studies; Prostaglandins F, Synthetic; Tonometry, Ocular; Travoprost; Treatment Outcome

2012
Automated hyperemia analysis software: reliability and reproducibility in healthy subjects.
    Japanese journal of ophthalmology, 2012, Volume: 56, Issue:1

    To evaluate the reliability and reproducibility of automated software to analyze human bulbar hyperemia.. We enrolled 89 healthy volunteers in this study. A slit lamp was used to take pictures of the conjunctiva on the temporal side of each subject's right eye. Photographic conditions were standardized by using a single photographer. Images were transferred to software for automatic pixel value calculation in the green channel of the region of interest (ROI). We investigated optimal ROI size, mean ROI pixel frequency, percentage ROI blood vessel coverage, and data reproducibility. We also used this software to evaluate bimatoprost-induced hyperemia and hyperemia in allergic conjunctival diseases.. The optimal ROI was found to be 400 vertical pixels by 300 horizontal pixels. Mean ROI pixel frequency was 5305 and % coverage was 4.4%. We confirmed the reproducibility of the analysis by comparing two images (r (2) = 0.7, P < 0.0001). Percentage blood vessel coverage increased in images of bimatoprost-induced hyperemia and hyperemia in allergic conjunctival diseases compared to the data from healthy volunteers.. The software was simple to use and provided reproducible data. We established standard settings for the operation of the software. The use of our software will improve hyperemia evaluation, which is presently done using nonquantitative methods.

    Topics: Adult; Algorithms; Amides; Bimatoprost; Cloprostenol; Conjunctiva; Conjunctival Diseases; Conjunctivitis, Allergic; Humans; Hyperemia; Middle Aged; Pattern Recognition, Automated; Photography; Reproducibility of Results; Software; Young Adult

2012
The effect of additional topical cyclosporine or vitamin A on the ocular surface during antiglaucoma medication administration.
    Ophthalmic research, 2012, Volume: 48, Issue:3

    To investigate the effects of topical application of cyclosporine or vitamin A on the ocular surface during the concurrent administration of antiglaucoma drugs.. Thirty rabbits were randomized into 5 groups. Group 1 was administered timolol, group 2 received travoprost, group 3 received a travoprost/timolol fixed combination solution, group 4 received timolol and travoprost, and group 5 received timolol, travoprost, and dorzolamide. Each group was divided into a subgroup that received only the antiglaucoma medication (subgroup A), a subgroup that received topical cyclosporine in addition to the antiglaucoma medication (subgroup B), and a subgroup that received topical vitamin A in addition to the antiglaucoma medication (subgroup C). Conjunctival impression cytology specimens were collected at baseline and at weeks 1, 3, and 6. Conjunctival biopsy specimens were collected at week 6.. The impression cytologic study results are as follows: statistically significant differences were found between groups 4A and 4B and between groups 4A and 4C at week 6 (p = 0.004, p = 0.006, respectively) and between groups 5A and 5B and between groups 5A and 5C at weeks 3 and 6 (p = 0.006, p = 0.008 at week 3, p = 0.003, p = 0.004 at week 6, respectively). No statistically significant differences were found between subgroup B and subgroup C in any of the groups at any of the times evaluated (p > 0.05). The conjunctival biopsy specimens from groups 1, 2, and 3 showed no distortion, but groups 4A and 5A showed distortion of the conjunctival epithelial structures. Groups 4B, 4C, 5B, and 5C showed less distortion of the conjunctival epithelial structures.. Administration of cyclosporine or vitamin A may reduce the adverse ocular surface changes caused by long-term administration of antiglaucoma drugs.

    Topics: Administration, Topical; Animals; Antihypertensive Agents; Cloprostenol; Conjunctiva; Conjunctival Diseases; Cyclosporine; Drug Combinations; Drug Therapy, Combination; Goblet Cells; Immunosuppressive Agents; Male; Ophthalmic Solutions; Rabbits; Timolol; Travoprost; Vitamin A; Vitamins

2012