Literature Review on Visual Performance with Rigid Gas Permeable Contact Lenses in Keratoconus
Keywords:
Visual Performance, Rigid Gas, Contact Lenses, KeratoconusAbstract
Keratoconus (KCN) is a progressive corneal ectatic disorder causing visual impairment through corneal thinning and irregular astigmatism. Rigid gas permeable (RGP) contact lenses are vital for managing vision by correcting aberrations. This review synthesizes key literature on corneal anatomy, KCN pathophysiology, diagnosis, management, RGP lens effects, and Pentacam assessment, using 19 essential references
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Sridhar MS. Anatomy of cornea and ocular surface. Indian Journal of Ophthalmology. 2018;66(2):190–194.
Santodomingo-Rubido J, Carracedo G, Suzaki A, Villa-Collar C, Vincent SJ, Wolffsohn JS. Keratoconus: An updated review. Contact Lens and Anterior Eye. 2022;45(3):101559.
Zhang XH, Li X. Effect of rigid gas permeable contact lens on keratoconus progression: a review. International Journal of Ophthalmology. 2020;13(7):1124.
Barrientez B, Nicholas SE, Whelchel A, Sharif R, Hjortdal J, Karamichos D. Corneal injury: Clinical and molecular aspects. Experimental Eye Research. 2019;186:107709.
Monir, A., Saghir, A. H., Radwan, G., Aldghaimy, A. H. Clinical Outcomes of Intrastromal Corneal Ring Segments Implantation with a New Nomogram Based on Cone Location and Q-Value in Keratoconus Patients. SVU-International Journal of Medical Sciences, 2025; 8(1): 1148-1163. doi: 10.21608/svuijm.2023.244678.1726.
Ali, S. S. E. M., El-Agouz, M. H., Mahmood, K. M., Abdellah, M. M. Optical Coherence Tomography Angiography After Ranibizumab and After Macular Laser Treatment for Diabetic Macular Edema. SVU-International Journal of Medical Sciences, 2025; 8(1): 148-157. doi: 10.21608/svuijm.2023.209031.1581.
Vazirani J, Basu S. Keratoconus: current perspectives. Clinical Ophthalmology. 2013:2019–2030.
Saad, A. M., Mohamed, T. A., Abdelazeem, K., El-Sebaity, D. M. Assessment of Intra-operative and early Post-operative Complications of Laser In-situ Keratomileusis. SVU-International Journal of Medical Sciences, 2024; 7(2): 1059-1067. doi: 10.21608/svuijm.2023.189463.1507.
McMonnies CW. Inflammation and keratoconus. Optometry and Vision Science. 2015;92(2):e35–e41.
Aldghaimy, A. H., El_sagheir, O. A. M., Mohamed, R. M., Hamed, M. A. Anterior segment optical coherence tomography assessment of corneal thickness before and after primary pterygium surgery. SVU-International Journal of Medical Sciences, 2022; 5(1): 219-225. doi: 10.21608/svuijm.2021.86179.1197.
Mohammadpour M, Heidari Z. Pentacam. Diagnostics in Ocular Imaging: Cornea, Retina, Glaucoma and Orbit. 2021:65–162.
Shetty R, Matalia H, Srivatsa P, Ghosh A, Dupps WJ Jr, Roy AS. A novel Zernike application to differentiate between three-dimensional corneal thickness of normal corneas and corneas with keratoconus. American Journal of Ophthalmology. 2015;160(3):453–462.
Esporcatte LPG, et al. Corneal biomechanics for corneal ectasia: Update. Saudi Journal of Ophthalmology. 2022;36(1):17–24.
Randleman JB, Khandelwal SS, Hafezi F. Corneal cross-linking. Survey of Ophthalmology. 2015;60(6):509–523.
Fadel D, Kramer E. Potential contraindications to scleral lens wear. Contact Lens and Anterior Eye. 2019;42(1):92–103.
eshmukh R, et al. Management of keratoconus: an updated review. Frontiers in Medicine. 2023;10:1212314.
Romero-Jiménez M, Santodomingo-Rubido J, Flores-Rodríguez P, González-Méijome JM. Short-term corneal changes with gas-permeable contact lens wear in keratoconus subjects: a comparison of two fitting approaches. Journal of Optometry. 2015;8(1):48–55.
Bilgin LK, Yılmaz Ş, Araz B, Yüksel SB, Sezen T. 30 years of contact lens prescribing for keratoconic patients in Turkey. Contact Lens and Anterior Eye. 2009;32(1):16–21.
Aboelmaged, A. A., Abdelrahman, M. S., Mohamed, A. H., El-Soghair, O. A. The influence of size and shape of Neodymium-doped:Yttrium Aluminium Garnet (Nd:YAG) laser capsulotomy on visual acuity and refraction. SVU-International Journal of Medical Sciences, 2018; 1(1): 7-13. doi: 10.21608/svuijm.2018.120525.
Ortiz-Toquero S, Rodriguez G, de Juan V, Martin R. New web-based algorithm to improve rigid gas permeable contact lens fitting in keratoconus. Contact Lens and Anterior Eye. 2017;40(3):143–150.
Shaker LM, Al-Amiery A, Isahak WNRW. Revolutionizing contact lens manufacturing: exploring cutting-edge techniques and innovations for enhanced vision and comfort. International Journal of Low-Carbon Technologies. 2024;19:359–385.
Mandathara PS, Fatima M, Taureen S, Dumpati S, Ali MH, Rathi V. RGP contact lens fitting in keratoconus using FITSCAN technology. Contact Lens and Anterior Eye. 2013;36(3):126–129.
Fodor M, et al. Effect of contact lens wear on the release of tear mediators in keratoconus. Eye & Contact Lens. 2013;39(2):147–152.
McKay TB, Hjortdal J, Priyadarsini S, Karamichos D. Acute hypoxia influences collagen and matrix metalloproteinase expression by human keratoconus cells in vitro. PLoS One. 2017;12(4):e0176017.
Akiyama K, et al. Impact of rigid gas-permeable contact lens on keratometric indices and corneal thickness of keratoconus eyes examined with anterior segment optical coherence tomography. PLoS One. 2022;17(7):e0270519.
Koh S, et al. Corneal tomographic changes during corneal rigid gas-permeable contact lens wear in keratoconic eyes. British Journal of Ophthalmology. 2022;106(2):197–202.
Ambrósio R Jr, et al. Integration of Scheimpflug-based corneal tomography and biomechanical assessments for enhancing ectasia detection. Journal of Refractive Surgery. 2017;33(7):434–443.
Xu Z, et al. Characteristic of entire corneal topography and tomography for the detection of sub-clinical keratoconus with Zernike polynomials using Pentacam. Scientific Reports. 2017;7(1):16486.
Kabir SJ, et al. Outcome of Epithelium-on Versus Epithelium-off Corneal Collagen Cross-li
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