Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 28
Filter
1.
Can J Ophthalmol ; 58(4): 302-312, 2023 08.
Article in English | MEDLINE | ID: mdl-35397233

ABSTRACT

OBJECTIVE: To evaluate perceptions of blade- versus laser-based blepharoplasty before and after being provided educational information. METHODS: This interventional pre-post study included 145 randomly selected participants (Maisonneuve-Rosemont Hospital, Montreal, Canada, August 2020) who were asked about their perceptions surrounding blepharoplasty. Participants then received information about the techniques before answering final questions. RESULTS: Participants perceived no difference in outcomes for blade (37%) versus laser (40%) blepharoplasty precounselling. This increased to laser blepharoplasty postintervention (56%, p < 0.001) despite being told that there was no difference in outcomes. The higher the level of education among participants, the more likely they were to correctly believe that both techniques had similar outcomes (p = 0.049). Most participants would choose laser blepharoplasty initially (64%), and this percentage increased postintervention (81%, p < 0.001). The preintervention perception of blade blepharoplasty recovery time (20.1 ± 32.6 days) was longer than that for laser blepharoplasty (13.5 ± 32.0 days, p = 0.01) and increased for both techniques postintervention (p < 0.001). Perceived pain was lower for laser blepharoplasty. Postintervention, participants responded that additional costs of ($975 ± $1,091) would justify laser over blade blepharoplasty. CONCLUSION: Elucidating patient perceptions and preferences for blade- versus laser-based blepharoplasty provides surgeons with perspective on how to tailor preoperative counselling. Before and after the intervention, participants had a bias toward choosing laser blepharoplasty. The intervention seems to falsely convince people that laser blepharoplasty leads to better outcomes. Because the doctor's advice can greatly impact patients' decisions, physicians have to be careful not to give false expectations when counselling patients. Inaccurate recall of key educational takeaways suggests that information should be vulgarized and delivered actively to patients.


Subject(s)
Blepharoplasty , Surgeons , Humans , Blepharoplasty/methods , Public Opinion , Eyelids/surgery , Lasers
2.
Middle East Afr J Ophthalmol ; 28(2): 98-103, 2021.
Article in English | MEDLINE | ID: mdl-34759667

ABSTRACT

PURPOSE: The topical nonsteroidal anti-inflammatory drug bromfenac 0.09% has a potential benefit in uveitic macular edema (UME) with a safe side effect profile. The aim of the study is to assess the efficacy of bromfenac sodium solution in the treatment of UME. METHODS: The charts of 10 patients with macular edema due to noninfectious uveitis treated with bromfenac 0.09% were reviewed retrospectively. The main outcomes studied were the best-corrected visual acuity (BCVA) and the central retinal thickness (CRT) compared 4 months before bromfenac initiation, at the time of its initiation, and 4 months later. RESULTS: Twelve eyes of 10 patients were included. BCVA and CRT were unchanged 4 months befoew bromfenac compared to the time of bromfenac initiation (P = 1.0 and P = 0.2, respectively). There were a significant improvement in BCVA after 4 months of bromfenac treatment (P = 0.043) and a significant decrease in CRT (P = 0.002). Subretinal fluid resolved completely in 8/9 eyes, and 4/9 eyes had a complete resolution of cystoid macular edema at 4 months. CONCLUSION: Bromfenac may be a useful addition to the treatment of UME.


Subject(s)
Macular Edema , Uveitis , Benzophenones , Bromobenzenes , Humans , Macular Edema/diagnosis , Macular Edema/drug therapy , Macular Edema/etiology , Retrospective Studies , Tomography, Optical Coherence , Uveitis/complications , Uveitis/drug therapy , Visual Acuity
5.
J Refract Surg ; 36(8): 498-505, 2020 Aug 01.
Article in English | MEDLINE | ID: mdl-32785722

ABSTRACT

PURPOSE: To evaluate the efficacy of simultaneous laser in situ keratomileusis (LASIK) and small-aperture corneal inlay (KAMRA; AcuFocus, Inc) implantation in hyperopic presbyopic eyes at 5 years postoperatively. METHODS: This was a retrospective single-center study of patients with hyperopia and presbyopia who underwent simultaneous LASIK and corneal inlay implantation by two experienced refractive surgeons. These patients were regularly observed for 5 years and evaluated with serial corneal tomographies and refractive assessments for uncorrected near visual acuity (UNVA), uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), distance-corrected near visual acuity (DCNVA), and manifest refraction spherical equivalent (MRSE). RESULTS: Twenty-four eyes of 24 patients were included. Mean age was 53.63 ± 4.11 years (range: 47 to 63 years) and mean preoperative MRSE was +1.52 ± 0.64 diopters (D) (range: +0.50 to +3.00 D). UNVA was 0.04 ± 0.06 logMAR at 1 month and 0.02 ± 0.05 logMAR (J1+ equivalent) at 5 years postoperatively. In comparison, preoperative DCNVA was 0.44 ± 0.20 (J5/J6 equivalent) (P < .001). At 5 years postoperatively, UDVA was 0.16 ± 0.18 logMAR (20/30 Snellen equivalent), and 23 of 24 eyes (95.8%) had UNVA of J3 or better. Two eyes (8.3%) lost one line of CDVA. One corneal inlay needed readjustment but none were explanted. Eight eyes (25%) developed regression in UNVA with hyperopic shift, which responded to a 3- to 4-month course of topical steroids, with 3 eyes showing patchy haze on the undersurface of the corneal inlay. CONCLUSIONS: Simultaneous LASIK and KAMRA inlay implantation, evaluated for 5 years postoperatively, shows some efficacy and predictability in improving UDVA and UNVA in hyperopic presbyopic eyes. However, late-onset regression with hyperopic shift, possible loss of CDVA, and occasional haze remain challenges. [J Refract Surg. 2020;36(8):498-505.].


Subject(s)
Corneal Stroma/surgery , Hyperopia/surgery , Keratomileusis, Laser In Situ , Presbyopia/surgery , Prosthesis Implantation , Female , Follow-Up Studies , Humans , Hyperopia/physiopathology , Lasers, Excimer/therapeutic use , Male , Middle Aged , Presbyopia/physiopathology , Refraction, Ocular/physiology , Retrospective Studies , Treatment Outcome , Visual Acuity/physiology
6.
Am J Ophthalmol Case Rep ; 10: 10-12, 2018 Jun.
Article in English | MEDLINE | ID: mdl-29780903

ABSTRACT

PURPOSE: To report the occurrence and the management of refractory interface haze that developed after epithelial ingrowth following small aperture inlay implantation. OBSERVATIONS: A 52 year-old man with sub-clinical anterior basement membrane dystrophy (ABMD) underwent combined hyperopic laser in situ keratomileusis and KAMRA corneal inlay implantation to correct presbyopia. Post-operatively, epithelial ingrowth developed requiring debridement and KAMRA removal. Significant diffuse interface haze, ground-glass in texture, involving the central 6 mm of the cornea developed the next day, and was refractory to topical and systemic steroids, necessitating flap irrigation, gentle scraping, and MMC application to the residual stromal bed after 12 days. The interface haze gradually improved to near complete resolution over 12-months. CONCLUSIONS AND IMPORTANCE: Epithelial ingrowth can lead to flap interface haze refractory to medical therapy. Early surgical intervention is key to haze resolution.

7.
Cornea ; 37(1): 45-52, 2018 Jan.
Article in English | MEDLINE | ID: mdl-29053556

ABSTRACT

PURPOSE: To evaluate the epithelial erosion incidence and refractive results in myopic eyes undergoing single-step transepithelial photorefractive keratectomy (TransPRK) compared with alcohol-assisted photorefractive keratectomy (PRK). METHODS: This was a retrospective nonrandomized comparative study conducted at the American University of Beirut Medical Center. A total of 189 eyes that had undergone single-step transepithelial PRK (TransPRK) were compared with 189 matched eyes that had undergone alcohol-assisted PRK over a follow-up of 1 year. The incidence and symptoms of epithelial erosion were evaluated in both treatment groups using a post hoc questionnaire administered to patients selected in the study. Visual and refractive outcomes, including vector analysis of astigmatism, and corneal higher-order aberrations were also compared at 1-year postoperatively. RESULTS: Baseline characteristics were similar between 2 groups (P > 0.05). A slight difference was detected at 12-month follow-up in the refractive cylinder (P = 0.02) and difference vector (P = 0.01) between eyes that had undergone TransPRK versus alcohol-assisted PRK. All other visual and refractive outcomes were similar at 12-month follow-up between both groups. Of note, 9.9% of patients with alcohol-assisted PRK (10/101) reported to the clinic because of tearing and stabbing sensation within 1 week after contact lens removal as opposed to 1% (1/100) of the TransPRK group (P = 0.0097). Subclinical recurrent epithelial erosion symptoms occurred more frequently in alcohol-assisted PRK: soreness to touch, sharp pains, and eyelid sticking occurred in 26.0% versus 6.6%, 32.5% versus 7.9%, and 26.0% versus 6.6% among the patients who were treated with alcohol-assisted PRK versus those who were treated with TransPRK, respectively (P ≤ 0.002). CONCLUSIONS: Single-step TransPRK for myopic eyes yields refractive results similar to those of alcohol-assisted PRK but shows a lesser incidence of early postoperative epithelial erosions and subsequent subclinical recurrent erosions.


Subject(s)
Astigmatism/physiopathology , Corneal Diseases/physiopathology , Epithelium, Corneal/physiopathology , Ethanol/administration & dosage , Myopia/surgery , Photorefractive Keratectomy/methods , Visual Acuity/physiology , Adolescent , Adult , Debridement/methods , Female , Humans , Lasers, Excimer/therapeutic use , Male , Middle Aged , Myopia/physiopathology , Refraction, Ocular/physiology , Retrospective Studies , Surveys and Questionnaires
8.
Case Rep Ophthalmol ; 8(1): 279-287, 2017.
Article in English | MEDLINE | ID: mdl-28559840

ABSTRACT

PURPOSE: To describe the technique of limbal stem cell-sparing corneoscleroplasty for the management of advanced keratoglobus. METHODS: A patient with bilateral advanced keratoglobus, with best-corrected visual acuity of 20/400 in the right eye and 20/200 in the left eye, underwent limbal stem cell-sparing corneoscleroplasty of the right eye. Initially, a 360-degree limbal incision with 200-µm depth was created, followed by a sublimbal tunnel dissection into the sclera, in order to conserve stem cells. Next, a limbus-to-limbus lamellar keratectomy at 200-µm depth was performed. Meanwhile, a donor corneoscleral button with preserved endothelium of the central 8 mm was fashioned. Prior to suturing the donor corneoscleral graft using a modified suturing technique to cover its scleral component, a full-thickness trephination of 8-mm diameter was completed in the central host cornea. RESULTS: Reepithelialization occurred within the first week. No episodes of rejection, intraocular pressure spikes, or epithelial breakdown were observed postoperatively. At the 6-month follow-up, the patient had 20/70 best-corrected vision and a smooth cornea with regular astigmatism on topography. CONCLUSION: Limbal stem cell-sparing corneoscleroplasty is a single-step technique for restoring the structural integrity of the cornea in advanced keratoglobus while preserving the host limbal stem cells.

9.
Am J Ophthalmol ; 178: 51-57, 2017 Jun.
Article in English | MEDLINE | ID: mdl-28341606

ABSTRACT

PURPOSE: To evaluate the safety and visual outcome of intracorneal ring segment (ICRS) implantation followed by cross-linking in pediatric keratoconus patients. DESIGN: Retrospective interventional case series. METHODS: This retrospective study included pediatric patients (aged ≤14 years) with keratoconus and poor corrected distance visual acuity (CDVA) that underwent ICRS implantation and cross-linking (CXL). ICRS were inserted under topical anesthesia after creating a corneal tunnel with a femtosecond laser. Cross-linking was performed 1 month subsequently. Records were reviewed and data collected preoperatively and at 6 months, 1 year, 2 years, and 4 years postoperatively. RESULTS: Twelve patients (17 eyes; 10 male, 2 female) aged 9-14 years (mean age 12.3 years) received ICRS implantation followed by CXL. Follow-up times ranged from 6 months to 4 years after surgery. At the 6-month follow-up all eyes were evaluated; at the 1-year, 2-year, and 4-year follow-up 11, 10, and 7 eyes were evaluated, respectively. At the 6-month follow-up, mean CDVA in comparison to preoperative levels improved significantly (P = .001) from 0.30 ± 0.19 logMAR to 0.12 ± 0.1 logMAR; mean uncorrected distance visual acuity (UDVA) also improved significantly from 0.90 ± 0.50 logMAR to 0.43 ± 0.31 logMAR. A significant decrease in both keratometry readings and spherical equivalent (from -4.0 to -1.56 diopters) was also noted after ICRS insertion. At the 1-year, 2-year, and 4-year follow-up refractive values remained relatively stable in comparison to the 6-month follow-up, except for a minor but significant improvement in cylinder and, at 4 years, in UDVA. All patients tolerated the surgery well and no intraoperative or postoperative complications were reported, except for 1 ring segment that had to be removed after 2 years owing to vascularization and corneal thinning. CONCLUSION: ICRS implantation is a safe and effective procedure for visual rehabilitation in children with keratoconus and poor CDVA.


Subject(s)
Corneal Stroma/surgery , Cross-Linking Reagents/pharmacology , Keratoconus/therapy , Ophthalmologic Surgical Procedures/methods , Prostheses and Implants , Prosthesis Implantation/methods , Refraction, Ocular , Adolescent , Child , Corneal Stroma/pathology , Corneal Topography , Female , Follow-Up Studies , Humans , Keratoconus/diagnosis , Keratoconus/physiopathology , Male , Prosthesis Design , Retrospective Studies , Visual Acuity
11.
Br J Ophthalmol ; 101(8): 1106-1112, 2017 08.
Article in English | MEDLINE | ID: mdl-27941045

ABSTRACT

BACKGROUND/AIMS: To evaluate refractive outcomes of single-step transepithelial photorefractive keratectomy (TransPRK) versus alcohol-assisted PRK (EtOH-PRK) for the correction of high myopia. METHODS: This was a retrospective non-randomised comparative study conducted at the American University of Beirut Medical Center, Beirut, Lebanon. Eyes with myopia (spherical equivalent (SE) larger than -6.00 D) that had undergone EtOH-PRK treatment combined with mitomycin C and TransPRK (SE: -7.53±0.90 D and -7.24±0.77 D, p=0.062), using the Schwind Amaris excimer laser, were included. 59 eyes (37 patients) that had single-step TransPRK were compared with 59 eyes (36 patients) that had EtOH-PRK. Visual and refractive outcomes, including analysis of astigmatism, and corneal higher order aberrations (HOAs) at 6.0 mm optical zone, were compared for 12 months postoperatively. RESULTS: Baseline characteristics were similar between the two groups (p>0.05). The SE deviation from target (SEDT) at 1 week, 1, 3, 6 and 12 months follow-up visits were similar between groups (p=0.428). At 12 months, 81.3% and 73.3% of eyes that had undergone TransPRK and EtOH-PRK, respectively, were between ±0.50 D SEDT (p=0.381). Mean cylinder power was 0.33±0.26 D versus 0.41±0.30 D at 12 months follow-up (p=0.140). The mean success index was 0.50±0.50 for the TransPRK group and 0.49±0.52 for the EtOH-PRK group (p=0.939), while the absolute mean angle of error was 7.81°±61.98° vs 13.12°±71.86° (p=0.667), respectively. The change in total, spherical and comatic corneal HOAs were similar in both groups at 12 months (p>0.05). Haze was similar between both groups; two eyes had +1 haze at 12 months in the TransPRK group versus zero eyes among the EtOH-PRK group (p=0.154). CONCLUSIONS: Single-step TransPRK for high myopia with or without astigmatism appears to yield similar visual, refractive and safety results as EtOH-PRK.


Subject(s)
Ethanol/therapeutic use , Myopia/surgery , Photorefractive Keratectomy/methods , Solvents/therapeutic use , Adolescent , Adult , Astigmatism/complications , Astigmatism/physiopathology , Astigmatism/surgery , Female , Humans , Male , Middle Aged , Myopia/complications , Myopia/physiopathology , Postoperative Complications/etiology , Retrospective Studies , Treatment Outcome , Visual Acuity/physiology , Young Adult
12.
Clin Ophthalmol ; 10: 1919-1923, 2016.
Article in English | MEDLINE | ID: mdl-27784979

ABSTRACT

BACKGROUND: Complete removal of the cortex has been advocated to prevent posterior capsular opacification but carries the risk of zonular dehiscence, hence there is a need for a safe maximal cortical cleanup technique in eyes with severe diffuse zonulopathy in subjects above age 90. METHODS: We used bimanual central cortical cleaning by elevating central fibers and aspirating them toward the periphery. Peripheral cortical fibers were removed passively only when they became loose due to copious irrigation. A one-piece foldable implant was inserted without a capsular tension ring. Postoperative corticosteroid drops were used. RESULTS: This technique was safely performed in a dozen eyes with severe pseudo-exfoliation or brunescent cataract with weak zonules. Posterior capsular rupture, iritis, vitreous loss, and lens subluxation were not observed. Moderate capsular phimosis occurred but with maintained central vision. CONCLUSION: The dogma of "complete cortical cleanup" in severe zonulopathy needs to be revisited in favor of a clear visual axis with maximal preservation of the damaged zonules. This technique is ideal in patients above age 90 where posterior capsular opacification and late dislocation of intraocular lens-capsule bag complex are unlikely to occur until several years postoperatively.

13.
Br J Ophthalmol ; 100(12): 1629-1633, 2016 Dec.
Article in English | MEDLINE | ID: mdl-27030277

ABSTRACT

PURPOSE: In vitro and in vivo studies did not detect toxicity to the retinal pigment epithelium cells using intravitreal ziv-aflibercept. Our purpose is to ascertain the 3-month safety and efficacy in wet age-related macular degeneration (AMD) treated with intravitreal ziv-aflibercept. METHODS: Prospectively, consecutive patients with wet AMD underwent ziv-aflibercept intravitreal injection (1.25 mg/0.05 mL) from March 2015 to November 2015. Monitoring of best-corrected visual acuity, intraocular inflammation, cataract progression and by spectral domain optical coherence tomography were carried out at baseline day 1, 1 week, 1 month, 2 months and 3 months after injections. RESULTS: 30 eyes were treated (22 Caucasians, 8 Indians; 16 men, 14 women; 14 right eyes and 16 left eyes) with mean age of 74.3 years with 11 treatment-naïve cases and 19 having had treatment-non-naïve. Best-corrected visual acuity improved from baseline logMAR 1.08-0.74 at 1 week, 0.72 at 1 month, 0.67 at 2 months and 0.71 at 3 months (p<0.001 for all time periods). Central macular thickness in microns decreased from 332.8 to 302.0 at 1 week, 244.8 at 1 month, 229.0 at 2 months and 208.2 at 3 months (p<0.001 for all time periods). There were no signs of intraocular inflammation, or change in lens status or increase in intraocular pressure throughout the study. CONCLUSIONS: Off label use of ziv-aflibercept improves visual acuity, without detectable ocular toxicity and offers a cheaper alternative to the same molecule aflibercept, especially in low/middle-income countries and in countries where aflibercept (Eylea) is not available. TRIAL REGISTRATION NUMBER: NCT02486484.


Subject(s)
Macula Lutea/diagnostic imaging , Macular Degeneration/drug therapy , Receptors, Vascular Endothelial Growth Factor/administration & dosage , Recombinant Fusion Proteins/administration & dosage , Visual Acuity , Aged , Dose-Response Relationship, Drug , Female , Follow-Up Studies , Humans , Intravitreal Injections , Macula Lutea/drug effects , Macular Degeneration/diagnosis , Male , Prospective Studies , Time Factors , Tomography, Optical Coherence , Treatment Outcome
14.
Am J Ophthalmol ; 167: 38-47, 2016 Jul.
Article in English | MEDLINE | ID: mdl-27084001

ABSTRACT

PURPOSE: To assess central corneal thickness (CCT) and corneal haze in keratoconus eyes following corneal cross-linking (CXL). DESIGN: Prospective noncomparative case series. METHODS: Forty patients (44 eyes) with keratoconus that had serial evaluation for CCT, following CXL, using high-definition optical coherence tomography (HD-OCT), ultrasound pachymetry (USP), and dual Scheimpflug tomography. CCT was measured at baseline, then at 2 weeks and 1, 3, 6, and 12 months postoperatively. RESULTS: The mean baseline CCT measurements were 470.02 µm, 469.79 µm, and 466.66 µm using the HD-OCT, the USP, and dual Scheimpflug tomography, respectively (P = .91). Following CXL, the mean CCT measurements by dual Scheimpflug, at all follow-up periods, were lower compared to mean baseline reading (P < .003). The mean CCT measurements by the HD-OCT and USP were similar to baseline readings except for the thicker readings at the 2-week follow-up visit. Overall, the mean CCT obtained by the USP was similar to that obtained by the HD-OCT throughout the 12-month period. However, the mean CCT measurements obtained by dual Scheimpflug tomography were statistically and clinically significantly lower than those obtained by both HD-OCT and USP at all follow-up visits. CONCLUSIONS: USP and HD-OCT showed better agreement in CCT readings at all visits, and may better estimate the true CCT following CXL as compared to dual Scheimpflug tomography. The lower mean CCT post-CXL as measured by the latter seems to be correlated with the amount of haze that develops after cross-linking.


Subject(s)
Cornea/pathology , Corneal Pachymetry , Corneal Topography , Cross-Linking Reagents , Keratoconus/drug therapy , Photochemotherapy , Tomography, Optical Coherence , Adult , Collagen/metabolism , Cornea/diagnostic imaging , Corneal Stroma/metabolism , Female , Humans , Keratoconus/diagnostic imaging , Keratoconus/metabolism , Male , Photosensitizing Agents/therapeutic use , Prospective Studies , Riboflavin/therapeutic use , Ultraviolet Rays , Young Adult
15.
Middle East Afr J Ophthalmol ; 23(1): 156-9, 2016.
Article in English | MEDLINE | ID: mdl-26957859

ABSTRACT

This case report describes a 15-year-old male with allergic conjunctivitis and keratoconus, who underwent uneventful intra-corneal ring segment (ICRS) implantation and corneal collagen cross-linking (CXL) in the right eye. During the follow-up periods, the patient was noted to have several episodes of allergic conjunctivitis that were treated accordingly. At the 2 years postoperatively, he presented with another episode of allergic conjunctivitis and progression of keratoconus was suspected on topography. However, the patient was lost to follow-up, until he presented with acute hydrops at 3 years postoperatively. There are no reported cases of acute corneal hydrops in cross-linked corneas. We suspect the young age, allergic conjunctivitis and eye rubbing may be a risk factors associated with possible progression of keratoconus after CXL. Prolonged follow-up and aggressive control of the allergy might be necessary in similar cases.


Subject(s)
Collagen/metabolism , Corneal Edema/etiology , Corneal Stroma/surgery , Cross-Linking Reagents , Keratoconus/therapy , Photochemotherapy/adverse effects , Prosthesis Implantation/adverse effects , Acute Disease , Adolescent , Corneal Edema/diagnosis , Corneal Edema/surgery , Corneal Stroma/metabolism , Corneal Topography , Humans , Keratoconus/drug therapy , Keratoconus/metabolism , Keratoconus/surgery , Keratoplasty, Penetrating , Male , Photosensitizing Agents/therapeutic use , Prostheses and Implants , Riboflavin/therapeutic use , Visual Acuity/physiology
16.
Ocul Immunol Inflamm ; 24(3): 319-26, 2016 Jun.
Article in English | MEDLINE | ID: mdl-25549063

ABSTRACT

PURPOSE: To evaluate the short-term efficacy of intravitreal adalimumab (IVA) for the treatment of eyes with active noninfectious uveitis. METHODS: Consecutive eyes with active noninfectious uveitis were injected with IVA at 0, 2, then every 4 weeks for total of 26 weeks. RESULTS: Six out of 7 patients (12 of 13 eyes) completed 26 weeks of treatment. One patient (1 eye) failed treatment. Seven out of 12 eyes had improvement of ≥2 ETDRS lines. Three out of three eyes had resolution of anterior chamber cells. And 9 of 10 eyes with vitreous haze had zero haze at 26 weeks. Five out of 8 eyes with macular edema had complete resolution. Median fluorescein angiography score improved from 14 to 4 on last follow-up. CONCLUSIONS: IVA was effective in controlling the inflammation, decreasing the macular edema, and improving the best corrected visual acuity in the majority of eyes in this series.


Subject(s)
Adalimumab/therapeutic use , Anti-Inflammatory Agents/therapeutic use , Tumor Necrosis Factor-alpha/antagonists & inhibitors , Uveitis/drug therapy , Adult , Anterior Chamber/pathology , Eye Infections/drug therapy , Eye Infections/physiopathology , Female , Fluorescein Angiography , Humans , Intravitreal Injections , Macular Edema/diagnostic imaging , Macular Edema/drug therapy , Macular Edema/physiopathology , Male , Middle Aged , Pilot Projects , Prospective Studies , Tomography, Optical Coherence , Treatment Outcome , Uveitis/diagnosis , Uveitis/physiopathology , Visual Acuity/physiology , Vitreous Body/drug effects , Young Adult
17.
J Cataract Refract Surg ; 41(8): 1602-9, 2015 Aug.
Article in English | MEDLINE | ID: mdl-26432116

ABSTRACT

PURPOSE: To evaluate and compare the refractive predictability and stability of laser in situ keratomileusis (LASIK) flap creation performed with a femtosecond laser and with a mechanical microkeratome to correct mild to moderate hyperopia. SETTING: American University of Beirut Medical Center, Beirut, Lebanon. DESIGN: Retrospective case series. METHODS: Patients who had hyperopic LASIK treatment using the Amaris excimer laser were included. Eyes in which the LDV femtosecond laser was used for flap creation were compared with eyes in which the Moria M2 microkeratome was used. RESULTS: The microkeratome group comprised 53 eyes and the femtosecond laser group, 72 eyes. Baseline characteristics were similar between groups (P > .05). The mean spherical equivalent (SE) deviation from target 1 week postoperatively was -0.08 diopter (D) ± 0.58 (SD) in the femtosecond laser group and -0.06 ± 0.87 D in the microkeratome group (P = .92). Thereafter, the mean SE deviation from target increased gradually and by 6 months postoperatively was +0.30 ± 0.50 D and +0.70 ± 0.71 D, respectively (P = .001). The correlation between the achieved and the attempted SE refraction was better in the femtosecond laser group (R(2) = 0.806) than the microkeratome group (R(2) = 0.671). CONCLUSIONS: Using the same nomogram, the short-term refractive outcomes of hyperopic LASIK with flap creation performed with the femtosecond laser were comparable to those for the microkeratome; however, the femtosecond group showed significantly better stability over the 6-month follow-up and better predictability, as reflected by a lower standard deviation and stronger Pearson correlation. FINANCIAL DISCLOSURE: Dr. Arba Mosquera is an employee of Schwind eye-tech-solutions GmbH and Co. KG. No other author has a financial or proprietary interest in any material or method mentioned.


Subject(s)
Corneal Stroma/surgery , Hyperopia/surgery , Keratomileusis, Laser In Situ/methods , Lasers, Excimer/therapeutic use , Surgical Flaps , Adult , Female , Humans , Hyperopia/physiopathology , Male , Middle Aged , Refraction, Ocular/physiology , Retrospective Studies , Visual Acuity/physiology , Young Adult
18.
BMJ Case Rep ; 20152015 Aug 25.
Article in English | MEDLINE | ID: mdl-26307647

ABSTRACT

A 20-year-old woman, a registered nurse, presented with best-corrected visual acuity of 6/15 (20/50) due to bilateral extensive persistent pupillary membrane. Sequential argon laser photocoagulation of the iris strands at the pupillary membrane iris collarette followed by neodymium:YAG laser lysis resulted in partial clearing of the central visual axis without bleeding. Best-corrected visual acuity improved to 6/9 (20/30) bilaterally without complications noted 1 year after combined laser therapy.


Subject(s)
Eye Abnormalities/surgery , Iris Diseases/surgery , Iris/abnormalities , Laser Therapy/methods , Membranes/abnormalities , Pupil Disorders/surgery , Vision, Low/etiology , Adult , Argon , Female , Humans , Iris/surgery , Laser Coagulation , Lasers, Solid-State , Membranes/surgery , Pupil , Vision, Low/surgery , Visual Acuity , Young Adult
19.
J Pediatr Ophthalmol Strabismus ; 52(5): 288-93, 2015.
Article in English | MEDLINE | ID: mdl-26098543

ABSTRACT

PURPOSE: To study the relationship between inferior oblique muscle overaction and astigmatism, and to explore any change in astigmatism after surgery. METHODS: This was a retrospective chart review of patients undergoing strabismus surgery. Demographic data collected included age, diagnosis, preoperative refraction, presence of inferior oblique overaction, surgery performed, and postoperative refraction. Patients were divided into three groups: those having only horizontal strabismus without inferior oblique overaction (no inferior oblique group) as a control group, those having bilateral inferior oblique overaction (bilateral inferior oblique group), and those having unilateral inferior oblique overaction (unilateral inferior oblique group). Right eyes of the bilateral inferior oblique and no inferior oblique groups were chosen for analysis, whereas the eye with inferior oblique overaction was included in the unilateral cases. Refractions were converted to power vector coordinates for comparison. Statistical analysis was performed to compare the power vectors among groups using the no inferior oblique group as controls and to explore any postoperative change in astigmatism. RESULTS: One hundred eighteen patients undergoing strabismus surgery were included (60 males and 58 females; mean age: 11.31 ± 10.59 years). Patients were divided into three groups: those having only horizontal strabismus without inferior oblique overaction (no inferior oblique group; 60 patients) as controls, those having bilateral inferior oblique overaction (bilateral inferior oblique group; 41 patients), and those having unilateral inferior oblique overaction (unilateral inferior oblique group; 17 patients). Preoperatively, there were no differences in astigmatism when comparing eyes with and without inferior oblique overaction. Postoperatively, both the no inferior oblique group and the bilateral inferior oblique group equally showed an increase in with-the-rule cylinder power (P = .02 and .01, respectively). CONCLUSIONS: Inferior oblique muscle overaction did not result in an increased prevalence of astigmatism along the axis of the overacting muscle.


Subject(s)
Astigmatism/physiopathology , Ocular Motility Disorders/physiopathology , Oculomotor Muscles/surgery , Ophthalmologic Surgical Procedures , Strabismus/surgery , Adolescent , Adult , Child , Child, Preschool , Female , Humans , Infant , Male , Middle Aged , Refraction, Ocular/physiology , Retrospective Studies , Young Adult
20.
Ophthalmic Surg Lasers Imaging Retina ; 46(5): 531-7, 2015 May.
Article in English | MEDLINE | ID: mdl-26057756

ABSTRACT

BACKGROUND AND OBJECTIVE: Nonmydriatic fundus photography (FP) has been a suboptimal tool for detecting age-related macular degeneration (AMD) changes. This study sought to enhance the detection of AMD changes by combining nonmydriatic FP with nonmydriatic spectral-domain optical coherence tomography (SD-OCT). PATIENTS AND METHODS: The study population included 249 patients aged 65 years and older who were assessed for AMD changes using standard mydriatic biomicroscopic fundus examination. Each eye then underwent nonmydriatic FP in one session followed 1 week later with nonmydriatic FP coupled with nonmydriatic SD-OCT. Images were interpreted for detection of AMD changes, and findings were compared to the original mydriatic biomicroscopic examination. RESULTS: Nonmydriatic FP had 64% sensitivity, 97% specificity, and a kappa value of 0.67 in detecting AMD changes compared with the traditional mydriatic biomicroscopic examination. Combined nonmydriatic FP and nonmydriatic SD-OCT increased sensitivity to 91.5%, specificity to 98.6%, and kappa to 0.91. CONCLUSION: The addition of nonmydriatic SD-OCT to nonmydriatic FP enhances the detection of AMD changes.


Subject(s)
Diagnostic Techniques, Ophthalmological , Geographic Atrophy/diagnosis , Photography , Retina/pathology , Tomography, Optical Coherence , Wet Macular Degeneration/diagnosis , Aged , Aged, 80 and over , False Negative Reactions , Female , Humans , Male , Mydriatics/administration & dosage , Predictive Value of Tests , Pupil/drug effects , Reproducibility of Results , Sensitivity and Specificity
SELECTION OF CITATIONS
SEARCH DETAIL
...