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Abraham CH, Sakyi-Badu G, Boadi-Kusi SB, Morny E, Darko-Takyi C, Ocansey S, Hope PKF, Dadzie AK, Aboagye MacCarthy A, Osei-Frimpong K, Nyarkoa Opoku E, Kwasi Abu E. Simulation of visual impairment in persons with normal vision for scientific research. Ophthalmic Physiol Opt 2024; 44:442-456. [PMID: 38223917 DOI: 10.1111/opo.13268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 01/16/2024]
Abstract
Simulation of visual impairment in healthy eyes has multiple applications in students' training, research and product development. However, due to the absence of an existing standard protocol, the method of simulation was left to the discretion of the researcher. This review aimed to outline the various methods of simulating visual impairment and categorising them. A scoping review of the relevant publications was conducted. Of the 1593 articles originally retrieved from the databases, 103 were included in the review. The characteristics of the participants, the method for simulation of the visual impairment in persons with normal vision and the level or type of visual impairment that was simulated were extracted from the papers. None of the methods of simulation can be judged as being superior to the others. However, electronic displays produced the most consistent form of visual impairment simulation.
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Affiliation(s)
- Carl Halladay Abraham
- Department of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana
| | - Godfred Sakyi-Badu
- Department of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana
| | | | - Enyam Morny
- Department of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana
| | - Charles Darko-Takyi
- Department of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana
| | - Stephen Ocansey
- Department of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana
| | | | - Albert Kofi Dadzie
- Department of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana
| | | | | | | | - Emmanuel Kwasi Abu
- Department of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana
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Mastropasqua R, Gironi M, D’Aloisio R, Pastore V, Boscia G, Vecchiarino L, Perna F, Clemente K, Palladinetti I, Calandra M, Piepoli M, Porreca A, Di Nicola M, Boscia F. Intraoperative Iridectomy in Femto-Laser Assisted Smaller-Incision New Generation Implantable Miniature Telescope. J Clin Med 2023; 13:76. [PMID: 38202083 PMCID: PMC10779865 DOI: 10.3390/jcm13010076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/04/2023] [Accepted: 12/06/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND In this study, we aimed to report the short-term (6 months) effects on visual functionality and safety of femto-laser assisted smaller-incision new-generation implantable miniature telescope (SING-IMT™) implanting, particularly related to postsurgical intraocular pressure increase, in patients suffering from end-stage age-related macular degeneration (AMD) and cataract. This device, designed for monocular use, aims to minimise the impact of the central scotoma by projecting the images onto a larger area of the photoreceptors surrounding the macula. METHODS In this prospective multicentric observational case series study, 6 eyes of 6 patients who underwent SING-IMT™ implantations were enrolled. At baseline and 6 months follow-up, best corrected distance visual acuity (BCDV) and best corrected near visual acuity (BCNVA), intraocular pressure (IOP), anterior chamber depth, endothelial cells count were assessed. In addition, IOP was also measured at 7, 15, 30, 45 days, and at 3 months follow-up. Finally, the incidence of complications was evaluated. RESULTS At final follow-up, in the study eyes, mean BCDVA improved by +10.0 letters (6.25; 13.8) letters and mean BCNVA improved by -0.30 logMAR (-0.55; -0.20). At postoperative month 6, we reported a mean IOP decrease of 4.50 mmHg (-5.75; -0.25). Interestingly, 83.3% of patients had an increased IOP value in at least one of the first two postoperative follow-ups (7 days and 15 days). In patients in whom intraoperative mechanical iridotomy was not performed, it was necessary to perform a postoperative YAG laser iridotomy to improve IOP management. Compared to the baseline, ECD loss at 6 months follow-up was 12.6%. CONCLUSIONS The SING IMT™ device was found to be effective in the distance and near vision improvement, without serious postoperative complications. We recommend intraoperative mechanical iridectomy in order to easily manage post-operative IOP and to avoid sudden IOP rise with its possible consequences. These good results can be a hope to partially improve the quality of life of patients suffering from severe end stage macular atrophy.
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Affiliation(s)
- Rodolfo Mastropasqua
- Ophthalmology Clinic, Department of Medicine and Science of Ageing, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy; (R.M.); (M.G.); (L.V.); (F.P.); (K.C.); (I.P.); (M.C.)
| | - Matteo Gironi
- Ophthalmology Clinic, Department of Medicine and Science of Ageing, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy; (R.M.); (M.G.); (L.V.); (F.P.); (K.C.); (I.P.); (M.C.)
| | - Rossella D’Aloisio
- Ophthalmology Clinic, Department of Medicine and Science of Ageing, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy; (R.M.); (M.G.); (L.V.); (F.P.); (K.C.); (I.P.); (M.C.)
| | - Valentina Pastore
- Eye Clinic, Department of Medical Science, Neuroscience and Sense Organs, University of Bari, 70121 Bari, Italy; (V.P.); (G.B.); (M.P.); (F.B.)
| | - Giacomo Boscia
- Eye Clinic, Department of Medical Science, Neuroscience and Sense Organs, University of Bari, 70121 Bari, Italy; (V.P.); (G.B.); (M.P.); (F.B.)
| | - Luca Vecchiarino
- Ophthalmology Clinic, Department of Medicine and Science of Ageing, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy; (R.M.); (M.G.); (L.V.); (F.P.); (K.C.); (I.P.); (M.C.)
| | - Fabiana Perna
- Ophthalmology Clinic, Department of Medicine and Science of Ageing, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy; (R.M.); (M.G.); (L.V.); (F.P.); (K.C.); (I.P.); (M.C.)
- International Agency of Prevention of Blindness, 00185 Rome, Italy
| | - Katia Clemente
- Ophthalmology Clinic, Department of Medicine and Science of Ageing, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy; (R.M.); (M.G.); (L.V.); (F.P.); (K.C.); (I.P.); (M.C.)
| | - Ilaria Palladinetti
- Ophthalmology Clinic, Department of Medicine and Science of Ageing, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy; (R.M.); (M.G.); (L.V.); (F.P.); (K.C.); (I.P.); (M.C.)
| | - Michela Calandra
- Ophthalmology Clinic, Department of Medicine and Science of Ageing, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy; (R.M.); (M.G.); (L.V.); (F.P.); (K.C.); (I.P.); (M.C.)
| | - Marina Piepoli
- Eye Clinic, Department of Medical Science, Neuroscience and Sense Organs, University of Bari, 70121 Bari, Italy; (V.P.); (G.B.); (M.P.); (F.B.)
| | - Annamaria Porreca
- Laboratory of Biostatistics, Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy; (A.P.); (M.D.N.)
| | - Marta Di Nicola
- Laboratory of Biostatistics, Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy; (A.P.); (M.D.N.)
| | - Francesco Boscia
- Eye Clinic, Department of Medical Science, Neuroscience and Sense Organs, University of Bari, 70121 Bari, Italy; (V.P.); (G.B.); (M.P.); (F.B.)
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