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Gautam M, Gupta R, Singh P, Verma V, Verma S, Mittal P, Karkhur S, Sampath A, Mohan RR, Sharma B. Intracameral Drug Delivery: A Review of Agents, Indications, and Outcomes. J Ocul Pharmacol Ther 2023; 39:102-116. [PMID: 36757304 DOI: 10.1089/jop.2022.0144] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
Abstract
An intracameral (IC) injection directly delivers the drug into the anterior chamber of the eye. This targeted drug delivery technique overcomes the ocular barriers and offers a high therapeutic concentration of medication at the desired site and consequently better clinical outcomes. IC drug delivery is a safe and effective modality with many advantages over topical delivery. These include excellent bioavailability, reduced systemic risk, and minimal ocular toxicity. Agents delivered via IC injection have shown promising results against infection, inflammation, ocular hypertension, and neovascularization. Current literature shows that IC antibiotics, including cefuroxime, vancomycin, and moxifloxacin, are routinely used for prophylaxis of endophthalmitis. Other drugs available for IC use are steroids, anesthetics, mydriatics, miotics, antivascular endothelial growth factor, antiglaucoma, and alkylating agents. Introduction of sustained-release devices containing dexamethasone or Bimatoprost in anterior chamber via IC route has the potential in treating ocular inflammation and raised intraocular pressure. The complications such as hemorrhagic occlusive retinal vasculitis and toxic anterior segment syndrome have been documented with IC prophylaxis but are rare. In this review, we provide an overview of available IC drugs, their pharmacokinetics, the spectrum of activity, dosage and preparation, prophylactic and therapeutic usage, clinical efficacy, and safety profiles.
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Affiliation(s)
- Megha Gautam
- Department of Ophthalmology, All India Institute of Medical Sciences, Bhopal, India
| | - Rituka Gupta
- Department of Ophthalmology, All India Institute of Medical Sciences, Bhopal, India
| | - Priti Singh
- Department of Ophthalmology, All India Institute of Medical Sciences, Bhopal, India
| | - Vidhya Verma
- Department of Ophthalmology, All India Institute of Medical Sciences, Bhopal, India
| | - Sunil Verma
- Department of Ophthalmology, All India Institute of Medical Sciences, Bhopal, India
| | - Parul Mittal
- Department of Ophthalmology, All India Institute of Medical Sciences, Bhopal, India
| | - Samendra Karkhur
- Department of Ophthalmology, All India Institute of Medical Sciences, Bhopal, India
| | - Ananyan Sampath
- Department of Ophthalmology, All India Institute of Medical Sciences, Bhopal, India
| | - Rajiv R Mohan
- Department of Ophthalmology and Molecular Medicine, University of Missouri, Columbia, Missouri, USA
| | - Bhavana Sharma
- Department of Ophthalmology, All India Institute of Medical Sciences, Bhopal, India
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Femtosecond Laser Combined with Double-Flange Polypropylene Suture Capsular Tension Ring Suspension for the Treatment of Subluxation of Lens in Marfan Syndrome. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:9348311. [PMID: 35991146 PMCID: PMC9385373 DOI: 10.1155/2022/9348311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/08/2022] [Accepted: 06/30/2022] [Indexed: 11/24/2022]
Abstract
Purpose To evaluate the use of femtosecond laser combined with double-flange polypropylene suture capsular tension ring (CTR) suspension to treat subluxation of lens in Marfan syndrome. The objective is to provide safer and more effective surgical procedures for patients. Setting. Eye Hospital, Aier Eye Hospital of Wuhan University, Wuhan, China Methods In this retrospective study, we observed sixteen patients (16 eyes) with Marfan syndrome who had undergone this operation. Femtosecond laser incision was performed on the anterior capsule with the lens as the center. The suspending CTR was clipped to anterior capsule to support it, which was secured to the sclera with a double-flange polypropylene suture. Uncorrected visual acuity (UCVA), intraocular pressure (IOP), tilt, and decentration of the intraocular lens (IOL) and postoperative complications were evaluated. Results All 16 patients were successfully implanted with suspended CTR and IOL after femtosecond laser assisted surgery. Visual acuity improved significantly after surgery (p < 0.01). At 1 month, 3 months and 6 months postoperatively, the tilt of the IOL was 2.70 ± 0.934, 2.65 ± 0.897, and 2.66 ± 0.781, and the decentration of the IOL was 0.30 ± 0.770, 0.30 ± 0.682, and 0.29 ± 0.737; both had no statistically significant difference between the three groups. After the operation, 4 patients had hyphema and 2 patients experienced a temporary postoperative IOP increase. Only one flange was exposed one month after operation and recovered right after secondary adjustment. Conclusion Femtosecond laser combined with double-flange polypropylene suture CTR suspension was effective in fixing the lens capsule to the scleral wall in cases of subluxation of lens seen in Marfan syndrome during our short-term observation. The long-term efficacy of this operation needs further observation and follow-up.
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Wang C, Rui Y, Zhou Y, Hu T, Xia X, Jiang J. Two-Year Follow-Up of Clinical Efficacy of Femtosecond Laser, Modified Capsular Tension Ring, and Iris Hook-Assisted Surgical Treatment of Lens Subluxation in Patients with Elevated Intraocular Pressure. J Ophthalmol 2022; 2022:4810103. [PMID: 35586595 PMCID: PMC9110210 DOI: 10.1155/2022/4810103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 04/19/2022] [Indexed: 11/17/2022] Open
Abstract
Purpose To evaluate the outcomes of femtosecond laser, modified capsular tension ring, and iris hook-assisted surgical treatment of lens subluxation in patients with elevated intraocular pressure (IOP). Methods Fifteen patients with lens subluxation and elevated IOP were enrolled in this study. All patients underwent femtosecond-laser-assisted cataract surgery/phacoemulsification/intraocular lens implantation/modified capsular tension ring (MCTR) implantation with iris hook assistance. Uncorrected visual acuity (UCVA), best corrected visual acuity (BCVA), IOP, number of glaucoma medication complications, endothelial cell density (ECD), and tilt of the lens were recorded before and after surgery. All patients were observed for 24 months postoperatively. Results UCVA and BCVA increased significantly at 1 month, 6 months, 12 months, and 24 months, compared with preoperative UCVA and BCVA (P < 0.001). IOP significantly decreased at 1 month, 3 months, 6 months, 12 months, and 24 months, compared with preoperative IOP (P < 0.001). 3 patients received glaucoma medications to control IOP after surgery. All medications were discontinued at 3 months postoperatively. Conjunctival redness or hemorrhage was observed in 11 patients (73.3%); transient corneal edema was observed in 3 patients (20.0%); and posterior capsule opacification occurred in 1 patient (6.67%). The ECD and tilt of the lens are within an acceptable range. Conclusion The combined use of a femtosecond laser, MCTR, and iris hooks is an effective and safe method for treating patients with lens subluxation and elevated IOP.
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Affiliation(s)
- Chao Wang
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yuhua Rui
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yi Zhou
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Tu Hu
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaobo Xia
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jian Jiang
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China
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Ju R, Chen Y, Yang W, He M, Pan Y, Wu Z. [Application of femtosecond laser technology in the management of subluxated lens]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2019; 39:843-849. [PMID: 31340919 DOI: 10.12122/j.issn.1673-4254.2019.07.15] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVE To evaluate the application of femtosecond laser technology in the management of subluxated lens. METHODS We retrospectively analyzed the data of the patients with subluxated lens undergoing femtosecond laser- assisted surgery at the Cataract Center of Guangzhou Aier Eye Hospital between March, 2017 and May, 2019. The LenSx femtosecond laser-assisted cataract surgery system was used to perform capsulotomy and lens fragmentation. According to the patients' eye condition, anterior vitrectomy was performed and capsular retractors was used. After phacoemulsification, I/A and insertion of the tension rings, the intraocular lens (IOL) was implanted into the capsular bag. The perioperative data, complications, visual acuity and intraocular pressure after the operation were recorded, and the stability of the capsular bag and IOLs were assessed. RESULTS We analyzed the data of 25 cases (29 eyes) of subluxated lens, including 16 (16 eyes; 55.17%) as the result of traumatic lens subluxation, 5 (9 eyes; 31.03%) of Mafan syndromes, 1 case (1 eye; 3.45%) of high myopia and 3 cases (3 eyes; 10.34%) of unknown causes. Thirteen 13 eyes (44.83%) showed mild subluxation, 7 (24.14%) had moderate subluxation, and 9 (31.03%) had severe subluxation. Femtosecond laser- assisted capsulorhexis, lens fragmentation and phacoemulsification were successfully completed for 29 eyes, of which 28 eyes (96.55%) retained the complete capsular bag and with successful implantation of the capsular tension devices and IOLs. Nine eyes (31.03%) were treated with anterior segment vitrectomy; iris hooks were used for 2 eyes (6.90%) and capsular bag hooks for 9 eyes (31.03%). The best corrected visual acuity was significantly improved in 29 eyes after operation (P < 0.05). At 1 month after the surgery, 26 eyes (89.66%) showed stably centered IOLs, 2 eyes (6.90%) showed slight tilt of the IOLs, and 3 eyes (10.34%) had anterior capsular contraction. The intraoperative complications included subconjunctival hemorrhage (75.87%), incomplete capsulotomy (17.24%) and contracted pupils (13.79%). CONCLUSIONS The application of femtosecond laser assisted technology enhances the surgical safety and effectiveness for subluxated lens, facilitates the choice of individualized surgical options, and promotes maximum recovery of the patients' visual function.
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Affiliation(s)
- Ruihong Ju
- Catract Center, Guangzhou Aier Eye Hospital, Guangzhou 510030, China
| | - Yun Chen
- Catract Center, Guangzhou Aier Eye Hospital, Guangzhou 510030, China
| | - Wei Yang
- Catract Center, Guangzhou Aier Eye Hospital, Guangzhou 510030, China
| | - Mansha He
- Catract Center, Guangzhou Aier Eye Hospital, Guangzhou 510030, China
| | - Yuanhong Pan
- Optometry Center, Guangzhou Aier Eye Hospital, Guangzhou 510030, China
| | - Zheming Wu
- Catract Center, Guangzhou Aier Eye Hospital, Guangzhou 510030, China
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Agarwal A, Narang P, Agarwal A. Vitrectomy-assisted phacoemulsification for lenticular coloboma. J Cataract Refract Surg 2017; 43:156-161. [PMID: 28366360 DOI: 10.1016/j.jcrs.2016.10.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 10/10/2016] [Accepted: 10/10/2016] [Indexed: 11/18/2022]
Abstract
We describe a technique to prevent continuous vitreous hydration during phacoemulsification in eyes with lenticular coloboma. The hydration results from communication between the anterior and posterior chambers from the edges of the colobomatous defect. To avoid this, a valved trocar is placed at the pars plana site around the area of the lenticular defect, which allows a limited dry vitrectomy during phacoemulsification. Intermittent vitrectomy with a moderate cutting rate and low vacuum parameters accompanied by temporary halting of the phacoemulsification procedure prevents vitreous herniation into the anterior chamber and limits the extension of zonular compromise, facilitating safe phacoemulsification with appropriate capsule expansion and fixation devices and implantation of an intraocular lens.
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Affiliation(s)
- Ashvin Agarwal
- From Dr. Agarwal's Eye Hospital & Research Centre (Ashvin Agarwal, Amar Agarwal), Chennai, and the Narang Eye Care & Laser Centre (Narang), Ahmedabad, India
| | - Priya Narang
- From Dr. Agarwal's Eye Hospital & Research Centre (Ashvin Agarwal, Amar Agarwal), Chennai, and the Narang Eye Care & Laser Centre (Narang), Ahmedabad, India
| | - Amar Agarwal
- From Dr. Agarwal's Eye Hospital & Research Centre (Ashvin Agarwal, Amar Agarwal), Chennai, and the Narang Eye Care & Laser Centre (Narang), Ahmedabad, India.
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