Effectiveness of Manual Cataract Surgery with Modified Corneal Incision in Pinar del Río
Keywords:
CATARATA; ASTIGMATISMO; EDEMA CORNEAL. , CATARACT; ASTIGMATISM; CORNEAL EDEMA., CATARATA; ASTIGMATISMO; EDEMA DA CÓRNEA.Abstract
Introduction: the leading cause of reversible blindness worldwide is cataract, particularly in regions with limited access to care.
Objective: to determine the effectiveness of manual cataract surgery with modified corneal incision in Pinar del Río in terms of visual outcomes and safety.
Methods: a non-observational, prospective longitudinal study was conducted between 2023 and 2024 at the Ophthalmology Service of Abel Santamaría Hospital in Pinar del Río. The sample included 150 eyes (75 per group). Patients underwent the surgical procedure and were subsequently reevaluated using descriptive and inferential statistical methods.
Results: the mean age was 69 years. Preoperative visual acuity was 0,1 in both groups, and induced astigmatism was higher with the scleral technique (1,20±0,65 D). Patients treated with the corneal technique achieved better visual acuity at 24 hours, one month, and six months postoperatively. At one month, both techniques showed reduced astigmatism, but significant differences persisted between the corneal technique (0,80±0,40 D) and the scleral technique (1,60±0,70 D). Corneal edema was more frequent with the corneal technique (16,7 %), although it was associated with 91 % rapid recovery and 85 % spectacle independence.
Conclusions: the modified corneal technique is more effective than the scleral technique, providing better visual acuity and lower induced astigmatism, while also being safer by reducing the occurrence of complications.
Downloads
References
1. GBD 2019 Blindness and Vision Impairment Collaborators; Vision Loss Expert Group of the Global Burden of Disease Study. Causes of blindness and vision impairment in 2020 and trends over 30 years, and prevalence of avoidable blindness in relation to VISION 2020: the Right to Sight: an analysis for the Global Burden of Disease Study. Lancet Glob Health [Internet]. 2021 Feb [Citado 20/10/2025]; 9(2): e144-e160. Disponible en: https://pubmed.ncbi.nlm.nih.gov/33275949/
2. Broman AT, Hafiz G, Muñoz B, Rodriguez J, Snyder R, Klein R, et al. Cataract and barriers to cataract surgery in a US Hispanic population: Proyecto VER. Arch Ophthalmol [Internet]. 2005 Sep [Citado 20/10/2025]; 123(9): 1231-6. Disponible en: https://pubmed.ncbi.nlm.nih.gov/16157804/
3. Abdellaoui T, Sebbata S, Mouzari Y, Oubaaz A. Manual small incision cataract surgery in dense cataract: Morocco comparative study. Ophthalmology Journal [Internet]. 2023 [Citado 20/10/2025]; 8:118–121. Disponible en: https://journals.viamedica.pl/ophthalmology_journal/article/view/95767/75086
4. Jiang B, Wu T, Liu W, Liu G, Lu P. Changing Trends in the Global Burden of Cataract Over the Past 30 Years: Retrospective Data Analysis of the Global Burden of Disease Study 2019. JMIR Public Health Surveill [Internet]. 2023 Dec 5 [Citado 20/10/2025]; 9: e47349. Disponible en: https://pubmed.ncbi.nlm.nih.gov/38051579/
5. Siya L, Hernández Silva JR, Hernández Ramos H, Ramos López M. Calidad visual y de vida en la cirugía refractiva bilateral simultánea del cristalino en pacientes hipermétropes. Rev Cubana Oftalmol [Internet]. 2023 Mar [citado 17/11/2025]; 36(1). Disponible en: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0864-21762023000100014&lng=es.
6. Seethalakshmi DK, Prakash A, Kanakpur S, Ramamurthy LB. A clinical study comparing post-operative astigmatism with straight and frown scleral incision in manual small incision cataract surgery. MRIMS Journal of Health Sciencesc[Internet]. 2023 [Citado 20/10/2025]; 11(2): 138-142. Disponible en: https://journals.lww.com/mjhs/fulltext/2023/11020/a_clinical_study_comparing_post_operative.5.aspx
7. DARADE DM, HARIHARRAO PENDAMKAR J, SURESH WANGIKAR B. Journal of Clinical and Diagnostic Research [Internet]. 2023 Mar [citado 17/11/2025]; 17(3): NC04-NC08. Disponible en: https://jcdr.net/articles/PDF/17604/61713_CE[Ra1]_F(IS)_PF1(AG_KM)_PFA(SS)_PB(AG_OM)_PN(SS).pdf
8. Bhandari S, Poudel M, Paudyal I, Joshi PL, Shrestha C, Paudyal G, Pradhan E. Treatment outcomes of retinal vein occlusion in clinical practice in Nepal. BMC Ophthalmol [Internet]. 2021 Feb [citado 17/11/2025]; 21(1): 92. Disponible en: https://pubmed.ncbi.nlm.nih.gov/33602158/
9. Chong J, Dupps WJ Jr. Corneal biomechanics: Measurement and structural correlations. Exp Eye Res [Internet]. 2021 Apr [citado 2025 Nov 17]; 205: 108508. Disponible en: https://pubmed.ncbi.nlm.nih.gov/33609511/
10. Abdulhussein D, Abdul Hussein M. WHO Vision 2020: Have We Done It? Ophthalmic Epidemiol [Internet]. 2023 Aug [citado 17/11/2025]; 30(4): 331-339. Disponible en: https://pubmed.ncbi.nlm.nih.gov/36178293/
11. Serpa Valdes M, González Cabrera Y, Chaswell Quiroga Y, Leal Hernández B, Rodríguez Mazo S. La ceguera y la baja visión en Cuba y en el mundo. Rev Cubana Oftalmol [Internet]. 2023 [citado 27/07/2025]; 36(1). Disponible en: https://revoftalmologia.sld.cu/index.php/oftalmologia/article/view/1659
12. Bali J, Bali O, Sahu A, Boramani J, Deori N. Health economics and manual small-incision cataract surgery: An illustrative mini review. Indian J Ophthalmol [Internet]. 2022 Nov [citado 17/11/2025]; 70(11): 3765-3770. Disponible en: https://pubmed.ncbi.nlm.nih.gov/36308093/
13. Montero Díaz E, Cuan Aguilar Y, Cárdenas Díaz T, Hormigó Puertas I, Bauza Fortunato Y. Pérdida de células endoteliales después de cirugía de catarata por facoemulsificación. Rev Cubana Oftalmol [Internet]. 2023 Sep [citado 26/11/2025]; 36(3). Disponible en: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0864-21762023000300009&lng=es
14. Bancsik K, Ilea CDN, Daina MD, Bancsik R, Șuteu CL, Bîrsan SD, Manole F, Daina LG. Comparative Analysis of Patient Satisfaction Surveys-A Crucial Role in Raising the Standard of Healthcare Services. Healthcare (Basel) [Internet]. 2023 Nov 1 [citado 17/11/2025]; 11(21): 2878. Disponible en: https://pubmed.ncbi.nlm.nih.gov/37958022/
15. Cui J, Du J, Zhang N, Liang Z. National Patient Satisfaction Survey as a Predictor for Quality of Care and Quality Improvement - Experience and Practice. Patient Prefer Adherence [Internet]. 2025 Jan 25 [citado 17/11/2025]; 19: 193-206. Disponible en: https://pmc.ncbi.nlm.nih.gov/articles/PMC11780174/
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2025 Raúl Socarras Llabona, Nayaris Gómez Martínez, Nairovys Gómez Martínez, Belkis Ferro, Medardo Rodríguez-López, Yunaisy Barrera Villar
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Authors who have publications with this journal agree to the following terms: Authors will retain their copyrights and grant the journal the right of first publication of their work, which will be publication of their work, which will be simultaneously subject to the Creative Commons Attribution License (CC-BY-NC 4.0) that allows third parties to share the work as long as its author and first publication in this journal are indicated.
Authors may adopt other non-exclusive license agreements for distribution of the published version of the work (e.g.: deposit it in an institutional telematic archive or publish it in a volume). Likewise, and according to the recommendations of the Medical Sciences Editorial (ECIMED), authors must declare in each article their contribution according to the CRediT taxonomy (contributor roles). This taxonomy includes 14 roles, which can be used to represent the tasks typically performed by contributors in scientific academic production. It should be consulted in monograph) whenever initial publication in this journal is indicated. Authors are allowed and encouraged to disseminate their work through the Internet (e.g., in institutional telematic archives or on their web page) before and during the submission process, which may produce interesting exchanges and increase citations of the published work. (See The effect of open access). https://casrai.org/credit/
