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1
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ุจุณู… ุงู„ู„ู‡ ุงู„ุฑุญู…ู† ุงู„ุฑุญูŠู… ุงู„ุณู„ุงู… ุนู„ูŠูƒู… ูˆุฑุญู…ุฉ ุงู„ู„ู‡
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ูˆุจุฑูƒุงุชู‡ and a very good morning to all of you
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ู‡ู†ุจุฏุฃ ุงู„ูŠูˆู… ููŠ ู…ูˆุถูˆุน corneal exhaustion syndrome
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ุฃูŠ ุจู…ุนู†ู‰ ุงู†ู‡ุงุฌ ู„ู„ู‚ุฑู†ูŠุฉ
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ุทุจุนุง ุงู„ุดูƒู„ exhaustion syndrome ุจูŠูƒูˆู† ุดูƒู„ ุงู„ู‚ุฑู†ูŠุฉ
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ุนู†ุฏ ุฅุฌุฑุงุก ู…ุซู„ุง ุงู„ corneal fluorescein staining ุฃูˆ
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ุฅุฌุฑุงุก ุงู„ corneal topography ุจุงู„ุดูƒู„ ู‡ุฐุง ู‚ุฑูŠุจ ู„ ุงู„
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.. ุงู„ symmetric bow tie ุฃูˆ ุงู„ regular astigmatism
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condition associated with the presence of marked
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endothelial polymegathismุŒ ุฅุฐุง ุญุงู„ุฉ ุจุชูƒูˆู† ู…ุตุงุญุจุฉ
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ู„ู„ุชุบูŠุฑ ููŠ ุญุฌู… ู…ู†ุŸ ุงู„ endothelium cellsุŒ ูŠุนู†ูŠ ุฅู…ุง
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ุจุงู„ุฒูŠุงุฏุฉ ุฃูˆ ุจู†ู‚ุตุงู† ุนุฏุฏ ุงู„ endothelium cells
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Patients with high refractive errors and extended
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wear who have worn lenses for 10 years ุจุนุถ ุงู„ุฃุดุฎุงุต
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ุงู„ู„ูŠ ุจูŠูƒูˆู† ุนู†ุฏู‡ู… high refractive error ุณูˆุงุก ูƒุงู†
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high minus power ุฃูˆ high plus power ุฃูˆ ูŠุฑุชุฏูˆู†
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ุงู„ุนุฏุณุงุช ุงู„ู„ุงุตู‚ุฉ ู„ูุชุฑุฉ ุฒู…ู†ูŠุฉ ุทูˆูŠู„ุฉ ุจูŠูƒูˆู† ู…ู‡ูŠุฃ ุฃู†ู‡
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ูŠุตุงุจ ููŠ ุงูŠู‡ุŸ ููŠ ุงู„ corneal exhaustion syndrome ุทุจุนุง
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ุงู„ high refractive
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error ุฎุงุตุฉ ูˆูŠู† ููŠ ุงู„ high plus ูˆุงู„ุณุจุจ ููŠ ุฐู„ูƒ ุฃู†ู‡
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ุจูŠูƒูˆู† more thickness
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where in the center
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Okay ุฒูŠ ู…ุซู„ุง ุงู„ mono vision lenses
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ุทูŠุจ ุฃูˆ ุจุนุถ ุงู„ู…ุฑุถู‰ ุงู„ู„ูŠ ูŠุฑุชุฏูˆู† ุงู„ุนุฏุณุฉ ุงู„ู„ุงุตู‚ุฉ ู„ู…ุฏุฉ
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ุนุดุฑ ุณุงุนุงุช ู…ุชูˆุงุตู„ุฉ ูˆู„ูƒู† ู‡ู†ุง ุงู„ู…ู‚ุตูˆุฏ ุจุงู„ุนุดุฑ ุณุงุนุงุช
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ูŠุนู†ูŠ ุจู…ุนู†ู‰ ุฃู†ู‡ ู‡ูˆ ู…ุง ุจูŠุนู…ู„ removal ู„ู„ุนุฏุณุฉ ุจุนุถ
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ุงู„ุฃุดุฎุงุต ู…ุซู„ุง ุจูŠุนู…ู„ wake up ุงู„ุณุงุนุฉ ู…ุซู„ุง ุณุจุนุฉุŒ ูŠู„ุจุณ
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ุงู„ุนุฏุณุฉ ุงู„ู„ุงุตู‚ุฉ ุงู„ุณุงุนุฉ ุชู…ุงู†ูŠุฉุŒ ูŠุฑูˆุญ ุงู„ุฌุงู…ุนุฉุŒ ูŠุฑูˆุญ
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ู…ุซู„ุง ูˆุงุญุฏุฉุŒ ุจุนุฏ ุฐู„ูƒ ูŠูุนู„ removal ู„ู„ุนุฏุณุฉ ูŠู„ุจุณู‡ุง
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ู…ุซู„ุง ุงู„ุณุงุนุฉ ุณุชุฉ ู„ุงุฑุจุน ุณุงุนุงุชุŒ ูŠุนู†ูŠ ู„ุณุงุนุฉ ุนุดุฑุฉุŒ ูŠุนู†ูŠ
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ุจู…ุนู†ู‰ ุฃู† ุงู„ total ุนุดุฑ ุณุงุนุงุช ูˆู„ูƒู† ู‡ูˆ ุงูŠุด ุจูŠุนู…ู„ุŸ
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removal ู„ู„ุนุฏุณุฉุŒ ู‡ู†ุง ูŠุฎุชู„ู ุนู† ุงูŠู‡ุŸ ุงู„ู…ุซุงู„ ุงู„ู„ูŠ ุงุญู†ุง
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ู†ุฐูƒุฑู‡ุŒ ู‡ู†ุง ุงู„ ten hours ุจุชูƒูˆู† ุงู„ู„ูŠ ู‡ูˆ ุจุดูƒู„ ูƒุงู…ู„ุŒ
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ูŠุนู†ูŠ ุทูˆุงู„ ุงู„ูŠูˆู… other signs ุนู„ุงู…ุงุช ุฃุฎุฑู‰ are
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intolerance to lens wear and blurred ุฏุงุฆู…ุง ุงู„ู…ุฑูŠุถ
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ุจุนุฏ ู…ุง ูŠุฑุชุฏูŠ ุงู„ุนุฏุณุฉ ุงู„ู„ุงุตู‚ุฉ ููŠ ุงู„ูุชุฑุฉ ุงู„ุฒู…ู†ูŠุฉ ู‡ุฐู‡
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ุงู„ุทูˆูŠู„ุฉ ูŠุดูƒูˆ ุฃู†ู‡ ููŠ ู‡ู†ุงูƒ fluctuating ุฃูˆ ููŠ ู‡ู†ุงูƒ
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variation ู„ู„ vision ูŠุนู†ูŠ ู…ู…ูƒู† ู…ุซู„ุง ุงู„ุตุจุญ ุงู„ุนุฏุณุฉ
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ุจุชูƒูˆู† ูˆุงุถุญุฉ ููŠ ุงู„ู„ูŠู„ ุจุชูƒูˆู† ู…ุบุจุดุฉ ูŠุนู†ูŠ ููŠ ุงุฎุชู„ุงู ููŠ
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ุงู„ุฑุคูŠุฉ due to fluctuations in refractive error ุจุณุจุจ
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ุงู„ู„ูŠ ู‡ูˆ ุงุฎุชู„ุงู ููŠ ุงู„ู‚ูˆุฉ ุงู„ุงู†ูƒุณุงุฑูŠุฉ ู„ู„ุนูŠู† ุจุนุถ
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ุงู„ุฃุญูŠุงู† ู…ู…ูƒู† ูŠุตูŠุฑ ุนู†ุฏู‡ flare ุฃูˆ glare ูˆ ู‡ุฐุง ู…ู…ูƒู†
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ูŠุคุฏูŠ ุฅู„ู‰ ุงูŠู‡ ุงู„ blurred vision
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corneal hypoesthesia ุฃูŠ ุจู…ุนู†ู‰ ุญุณุงุณูŠุฉ ุงู„ู‚ุฑู†ูŠุฉุŒ
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ูŠุจุฏุฃ ุฃุดูˆู ุงู„ู„ูŠ ู‡ูˆ ู…ุฏู‰ ุงู„ corneal sensitivityุŒ ู‡ู„
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ู‡ูŠ ุนุงู„ูŠุฉ ูˆู„ุง ู‚ู„ูŠู„ุฉ ุจุงู„ู†ุณุจุฉ ู„ู„ู‚ุฑู†ูŠุฉ
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It's not easy to measure it quantitatively in the
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clinical situation ุฏุงุฆู…ุง ู…ุง ููŠุด ุฃูŠ ุฌู‡ุงุฒ ูŠู‚ูŠุณ ุงู„ู„ูŠ
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ู‡ูˆ ุญุณุงุณูŠุฉ ุงูŠู‡ ุญุณุงุณูŠุฉ ุงู„ู‚ุฑู†ูŠุฉ ูƒ value ูƒู‚ูŠู…ุฉ ูŠุนู†ูŠ
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ู…ุง ุจูŠู‚ูˆู„ ู…ุซู„ุง ู‚ูŠู…ุฉ ุงู„ุญุณุงุณูŠุฉ ู„ู‡ุฐู‡ ุงู„ู‚ุฑู†ูŠุฉ ุชู„ุงุชุฉ ุฃูˆ
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ุฃุฑุจุน ุฃูˆ ุฎู…ุณุฉ ุฃูˆ ุณุชุฉ ู‡ูˆ ุจูŠุงุฎุฏู‡ุง ูƒ qualitative ุฃู† ู‡ู„
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ู‡ูŠ good ูˆู„ุง bad
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One technique is based on using a fine nylonุŒ fine
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ูŠุนู†ูŠ ุจู…ุนู†ู‰ ุฏู‚ูŠู‚ุŒ nylon threaded of adjustable
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length and stimulating a peripheral corneal
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location ู‚ุจู„ ู…ุง ุฃู†ุง ุฃู‚ูˆู… ุจุฅุฌุฑุงุก ุงู„ู„ูŠ ู‡ูˆ ุงุฑุชุฏุงุก
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ุงู„ุนุฏุณุฉ ุงู„ู„ุงุตู‚ุฉุŒ ุฃูุนู„ู‡ ู„ู„ู…ุฑูŠุถ test ุจุณูŠุท ุณูˆุงุก ูƒุงู†
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ุงู„ู„ูŠ ู‡ูˆ ููŠู‡ fineุŒ threadedุŒ nylonุŒ ุฃูŠ ุจู…ุนู†ู‰ ุจูŠูƒูˆู†
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ุฑููŠู‚ ุฃูˆ ุฑู‚ูŠู‚ ูƒุซูŠุฑุง ูˆ ู†ุดูˆู ุญุณุงุณูŠุฉ ุงู„ู‚ุฑู†ูŠุฉ ูˆูŠู†ุŸ
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ุจุงู„ุฃุทุฑุงูุŒ ุฃู†ู‡ ู‡ู„ ููŠ ุงู„ู„ูŠ ู‡ูˆ ู‡ู†ุงูƒ sensitivity ูˆู„ุง
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ู„ุงุŸ ุทุจุนุง ุจุนุถ ุงู„ุฃุดุฎุงุต ุจูŠูƒูˆู† ุนู†ุฏู‡ู… ุงู„ sensitivity
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very highุŒ ุฅุฐู† ู‡ุฐุง ูŠุนุชุจุฑ ู…ู† ุถู…ู† ุงู„ contra
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indications ู„ู…ู†ุŸ ู„ู„ contact lensesุŒ ุณูˆุงุก ุงู„ soft
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ุฃูˆ ุงู„ hardุŒ okayุŸ ุจุนุถู‡ู… ุจูŠูƒูˆู† lowุŒ ุฃูŠุถุง ู‡ุฐุง ูŠุนุชุจุฑ
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contra indicationsุŒ okayุŸ
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Low DK over time hydrogel or RGP lenses are most
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commonly implicated
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ุฏุงุฆู…ุง ุงุฑุจุท ุงู„ low .. ุงู„ low DK ุนู„ู‰ T ููŠ ู…ูˆุถูˆุน ุงูŠุดุŸ
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ุงู„ hypoxia ูˆุจุนุฏ ุฐู„ูƒ ุฃู†ู‡ ุจูŠุณุจุจ ุงู„ corneal edemaุŒ
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ุฏุงุฆู…ุง ุงู„ุดุฎุต ู„ู…ุง ูŠุตูŠุฑ ุนู†ุฏู‡ corneal edema ุฃูˆ
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hypoxia ูŠุตูŠุฑ ุนู†ุฏู‡ ุงูŠู‡ุŸ reduce ู„ู„ corneal
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sensitivity okayุŸ ุจุงู„ู†ุณุจุฉ ู„ู„ RGP lenses ุงู„ุดุฎุต ุงู„ู„ูŠ
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ูŠุฑุชุฏูŠ ุงู„ุนุฏุณุฉ ุงู„ู„ุงุตู‚ุฉ ุงู„ุตู„ุจุฉ ุงุญู†ุง ุจู†ุนุฑู ุฃู†ู‡ุง ู…ุตู†ูˆุนุฉ
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ู…ู† ู…ุงุฏุฉ ุงู„ MMA ุจูˆู„ูŠู…ูŠุซุงูŠู„ ู…ูŠุซูŠ ุงูƒุฑูŠู„ูŠุช ุชุชู…ูŠุฒ ู‡ุฐู‡
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ุงู„ู…ุงุฏุฉ ุฃู†ู‡ุง ุชุนู…ู„ hard interaction ู…ุน ุงู„ู‚ุฑู†ูŠุฉ
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ูุจุชู‚ู„ู„ ู…ู† ุงูŠู‡ุŸ ู…ู† ุญุณุงุณูŠุฉ ุงู„ู‚ุฑู†ูŠุฉ ูˆุงุถุญุฉ ุงู„ููƒุฑุฉุŸ
77
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ุฅุฐุงู‹ why corneal hypoesthesia ุทุจุนุงู‹ hypoesthesia is
78
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common with RGP contact lenses ุงู„ุณุจุจ ุฃู†ู‡ุง ู‡ูŠ ู…ุตู†ูˆุนุฉ
79
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ู…ู† ู…ุงุฏุฉ ุงู„ polymethyl methacrylate ูˆุชุนุชุจุฑ ู‡ุฐู‡
80
00:06:54,740 --> 00:06:59,620
ุงู„ู…ุงุฏุฉ hard ูˆุจุงู„ุชุงู„ูŠ ุฃู†ู‡ุง ุจุชุนู…ู„ ุงูŠู‡ุŸ ุงู„ู„ูŠ ู‡ูˆ ุชุตุงุฏู…
81
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hard ูŠุนู†ูŠ ุงู„ู„ูŠ ู‡ูˆ irritation hard irritation ู…ุน
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ู…ูŠู†ุŸ ู…ุน ุงู„ู‚ุฑู†ูŠุฉ ูˆุจุงู„ุชุงู„ูŠ ุจุชุคุฏูŠ ุฅู„ู‰ ู‚ู„ุฉ ู…ูŠู†ุŸ
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ุงู„ุญุณุงุณูŠุฉ ู„ู„ู‚ุฑู†ูŠุฉ affected
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patients are naturally asymptomatic ุฏุงุฆู…ุง ุงู„ู…ุฑูŠุถ
85
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ู…ุง ุจูŠุดุนุฑ ุฃู†ู‡ ููŠ ุนู†ุฏู‡ ู‚ู„ุฉ ุฃูˆ ุฒูŠุงุฏุฉ ููŠ ุงู„ู„ูŠ ู‡ูˆ
86
00:07:26,010 --> 00:07:29,830
ุญุณุงุณูŠุฉ ุงู„ู‚ุฑู†ูŠุฉ ูŠุนู†ูŠ ุจุฏูˆู† ุฃุนุฑุงุถ ุฃูˆ ุจุฏูˆู† ุดูƒูˆู‰ ู…ู†
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ู…ูŠู† ู…ู† ุงู„ู…ุฑูŠุถ So corneal hypoesthesia is an
88
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uncommon indication for lens refitting. ู…ุนู†ู‰ ุงู„ูƒู„ุงู…
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ุฃู† ุงู„ู…ุฑูŠุถ ุนู†ุฏู…ุง ูŠูƒูˆู† ุนู†ุฏู‡ ู‚ู„ุฉ ููŠ ุญุณุงุณูŠุฉ ุงู„ู‚ุฑู†ูŠุฉ
90
00:07:44,440 --> 00:07:51,320
ูŠุฌุนู„ ุงู„ู…ุฑูƒุฒ ูŠุฑูŠุฏ refitting ุฃูˆ regular check ู„ู„ุนุฏุณุฉ
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00:07:51,320 --> 00:07:57,880
ู…ุด ู‡ูŠูƒูˆู† ู…ุชุนุฑู ุนู„ู‰ ู‡ุฐุง ุงู„ุฃู…ุฑ ุทุจ
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ุงู„ุขู† ุงู„ corneal hypoesthesia ูƒูŠู ุฃู†ุง ู…ู…ูƒู† ุฃุนุฑูู‡ุงุŸ
93
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ุฃู† ุงู„ู…ุฑูŠุถ ุนู†ุฏู‡ ุฅู…ุง ู…ู† ุฎู„ุงู„ ุงู„ุฌู‡ุงุฒ ุฒูŠ ู…ุง ุงุชูู‚ู†ุง ุฃูˆ
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ู…ู† ุฎู„ุงู„ .. ูŠู…ูƒู† ุทุจู‚ู†ุงู‡ุง ููŠ ุงู„ู…ุนู…ู„ ุฃู†ู‡ ุฏุงุฆู…ุง ู‚ุจู„ ู…ุง
95
00:08:10,490 --> 00:08:14,570
ุฃู„ุจุณู‡ ุงู„ุนุฏุณุฉ ุฃุนู…ู„ ุจู€ .. ุงู„ู„ูŠ ู‡ูˆ ุงู„ tissue ุฃูˆ ุจุงู„ู‚ุทู†
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ู…ู† ุงู„ู„ูŠ ู‡ูˆ ุฃุทุฑุงู ุงู„ู‚ุฑู†ูŠุฉ ุงู„ุขู† ุจุงู„ู†ุณุจุฉ ู„ู€
97
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Management ู‚ู„ูŠุฉ ุงู„ุนู„ุงุฌ ู„ู…ู†ุŸ ู„ corneal exhaustion
98
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ุฃูˆ ุงู„ Stroma ุงู„ู‚ุฏูŠู…ุฉ ุฃูˆ ุงู„ Stroma stray ุจู…ุนู†ู‰
99
00:08:28,410 --> 00:08:32,550
ุงู„ู„ูŠ ู‡ูˆ ุฌู…ูŠุน ุงู„ุนู„ู…ุงุช ุงู„ู„ูŠ ุจุชุธู‡ุฑ ุจุนุฏ ุงุฑุชุฏุงุก ุงู„ุนุฏุณุฉ
100
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ุงู„ู„ุงุตู‚ุฉ ุนู†ุฏู†ุง ุงู„ Polymegathism ูˆ corneal exhaustion
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syndrome ูˆ corneal hypoesthesia ุฏู‡ ุณุคุงู„ ุณุคุงู„ ู…ูŠู†
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ูŠุฎุชุงุฑู‡ู…ุŸ
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ูุถู„ูƒ
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ู„ูŠุด ุทูŠุจุŸ another answer
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00:09:00,890 --> 00:09:05,550
ู…ูŠู† ูŠุนุชุจุฑ ุงู„ more dangerousุŸ ุฃูˆ ุนู†ุฏู‡ ู„ุงุฒู… ุงู„ู…ุฑูŠุถ
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00:09:05,550 --> 00:09:09,450
ูŠุชูˆู‚ู ุนู† ุงุฑุชุฏุงุก ุงู„ุนุฏุณุฉ ุงู„ู„ุงุตู‚ุฉุŸ ูƒู„ุงู…ูƒ ุตุญูŠุญ ู‡ูˆ ุงู„
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corneal exhaustion syndrome ุงุญู†ุง ู‚ู„ู†ุง ุฃู† ุงู„ corneal
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exhaustion syndrome ุจูŠูƒูˆู† ู…ุตุงุญุจ ู„ู…ู†ุŸ ู„ู„
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polymegathism ูŠุนู†ูŠ ู‡ู†ุงูƒ ุจูŠุญุฏุซ ุชุบูŠุฑ ููŠ ุญุฌู… ุงู„ุฎู„ุงูŠุง
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00:09:22,450 --> 00:09:26,200
ุจุชุงุนุฉ ุงู„ endothelium ุงู„ corneal hypoesthesia
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ุงู„ู…ุฑูŠุถ ุฃุตู„ุง ู…ุด ู‡ูŠูŠุฌูŠ ุนู„ู‰ ุงู„ clinic ุฃูˆ ุนู„ู‰
112
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ุงู„ู…ุดูู‰ ุฃู†ู‡ ูŠุดูƒูŠ ู„ุฃู†ู‡ ู‡ูˆ ูŠุนุชุจุฑ asymptomatic ู‡ู†ุง
113
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ุฃูŠุถุง ุงู„ corneal exhaustion syndrome ุจูŠุนู…ู„ ุญุงุฌุฉ
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ุจุงุณู…ู‡ุง Scattering ู„ู„ูู„ูˆุฑุณูŠู† ูŠุนู†ูŠ ุงู„ุขู† ู„ูˆ ุฃู†ุง
115
00:09:43,240 --> 00:09:46,500
ุนู…ู„ุชู„ู‡ ู…ุซู„ุง corneal fluorescein stainingุŒ ู‡ุชู„ุงู‚ูŠ
116
00:09:46,500 --> 00:09:51,360
ุนู„ู‰ ูƒู„ ุงู„ู‚ุฑู†ูŠุฉ ููŠู‡ ุงูŠู‡ุŸ fluorescein stainingุŒ ูŠุฎุชู„ู
117
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ุนู† superficial punctate keratitis ุฃูˆ superior
118
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arcuate staining ุงู„ู„ูŠ ุดูู†ุงู‡ุง ุงู„ู†ู‚ุงุท ุจุชูƒูˆู† ููŠ ุฌุฒุก
119
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ู…ุญุฏุฏ ุฅู…ุง ุจุงู„ Center ุฃูˆ ุจุงู„ุฃุทุฑุงู ูุนู†ุง ู†ุฎุชุงุฑู‡ู… ู‡ูˆ
120
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ูŠุนุชุจุฑ ุงู„ corneal exhaustion syndrome is an
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indication of the need to refit with a lens of
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00:10:13,840 --> 00:10:18,360
moderate to high DK ุนู„ู‰ T ุฏุงุฆู…ุง ุฃู†ุง ุจุฃุณุชุจุฏู„ ุงู„
123
00:10:18,360 --> 00:10:22,780
material ุจุชุงุนุฉ ุงู„ุนุฏุณุฉ ุจ moderate DK ุนู„ู‰ T ุจุชู‚ุฏุฑ ู…ู†
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00:10:22,780 --> 00:10:28,740
55 ู„ 58% ุงู„ุขู† ู…ุนุธู… ุงู„ุนุฏุณุงุช ุงู„ู…ูˆุฌูˆุฏุฉ ููŠ ุงู„ุณูˆู‚
125
00:10:28,740 --> 00:10:34,490
ุจุชู„ุงู‚ูˆุง ุงู„ H2O ู…ู† ุฎู…ุณุฉ ูˆ ุฎู…ุณูŠู† ู„ุชู…ุงู†ูŠุฉ ูˆ ุฎู…ุณูŠู† ููŠ
126
00:10:34,490 --> 00:10:42,350
ุงู„ู…ูŠุฉ ูˆู‡ุฐุง ูŠุนุชุจุฑ moderate DK
127
00:10:42,350 --> 00:10:47,850
ุนู„ู‰ T ุนุดุงู† ุฃุญุงูุธ ุนู„ู‰ ุนู…ุฑ ุงู„ุนุฏุณุฉ ูˆููŠ ู†ูุณ ุงู„ูˆู‚ุช ุฃู†ู‡
128
00:10:47,850 --> 00:10:57,830
ุงูŠู‡ ุฃู†ู‡ ุฃุญุงูุธ ุนู„ู‰ ุนุฏู… ุงู„ corneal ุงู„ู‚ุฏูŠู…ุฉ ุฃูŠ
129
00:10:57,830 --> 00:10:59,270
ุณุคุงู„ ููŠ ุงู„ู…ูˆุถูˆุน ู‡ุฐุง
130
00:11:03,170 --> 00:11:07,730
ุฃูŠุถุง ุจุฏู‡ ูŠุนู…ู„ SEAS ุฃูŠ ุจู…ุนู†ู‰ ุงู„ู„ูŠ ู‡ูˆ ุงู„ุชูˆู‚ู ุนู† ุงู„
131
00:11:07,730 --> 00:11:11,770
extended wear ุฃู† ุงู„ู…ุฑูŠุถ ู…ุง ูŠุฑุชุฏูŠ ุงู„ุนุฏุณุฉ ุงู„ extended
132
00:11:11,770 --> 00:11:15,750
wear ู„ูŠุดุŸ ุจุจุณุงุทุฉ ู„ุฃู†ู‡ ุจูŠูƒูˆู† ููŠู‡ุง ุงู„ DK ุนู„ู‰ T very
133
00:11:15,750 --> 00:11:20,570
high ูุจุงู„ุชุงู„ูŠ ู‡ุชุนู…ู„ corneal edema ู‡ุชุนู…ู„ hypoxia
134
00:11:20,570 --> 00:11:23,970
ูˆ ู…ู…ูƒู† ุชุนู…ู„ ุงู„ corneal exhaustion syndrome
135
00:11:28,940 --> 00:11:33,480
ุทูŠุจ ููŠ ุนู†ุฏู†ุง ู…ูˆุถูˆุน ุงู„ hyperemia and
136
00:11:33,480 --> 00:11:38,540
vascularization ุงูŠุด ุงู„ูุฑู‚ ู…ุง ุจูŠู† ุงู„ hyperemia ูˆ ุงู„
137
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vascularizationุŸ
138
00:11:42,440 --> 00:11:47,640
ุงู„ hyperemia ุฏุงุฆู…ุง ุฃู† ุงู„ุงูˆุนูŠุฉ ุงู„ุฏู…ูˆูŠุฉ ุงู„ู„ูŠ ู…ูˆุฌูˆุฏุฉ
139
00:11:47,640 --> 00:11:52,520
ุจูŠุตูŠุฑ ููŠู‡ุง ุนู…ู„ูŠุฉ ุงูŠุด ุงุญุชู‚ุงู† ูˆุจุงู„ุชุงู„ูŠ ุจูŠุตูŠุฑ ู‡ู†ุงูƒ
140
00:11:52,520 --> 00:11:55,580
dilatation ู„ู„ blood vessels ูŠุนู†ูŠ ู†ูุณ ุงู„ุงูˆุนูŠุฉ
141
00:11:55,580 --> 00:11:59,580
ุงู„ุฏู…ูˆูŠุฉ ุงู„ู„ูŠ ู…ูˆุฌูˆุฏุฉ ุนู†ุฏ ุงู„ุดุฎุต ูุงูƒุฑูŠู† ุฃู…ุง ุงุดุชุบู„ู†ุง
142
00:11:59,580 --> 00:12:02,380
ุนู„ู‰ ุงู„ conjunctival redness ูˆุดูู†ุง ุงู„ู‚ูˆูŠุฉ ุงู„ุฏู…ูˆูŠุฉ
143
00:12:02,380 --> 00:12:05,900
ููŠ ุงู„ peripheral ูˆ ุงู„ nasal ูˆ ุงู„ up ูˆ ุงู„ down ู‡ุฐู‡
144
00:12:05,900 --> 00:12:09,460
ู†ูุณู‡ุง ุจูŠุตูŠุฑ ุนู…ู„ูŠุฉ ุงุญุชู‚ุงู† ูŠุนู†ูŠ ุจุชุตู„ ู„ moderate ุฃูˆ
145
00:12:09,460 --> 00:12:15,120
severe ู„ูƒู† ู‡ู„ ู‡ูŠ ุงู†ุถุงู ู„ู‡ุง a new blood vesselsุŸ ู„ุฃ
146
00:12:15,120 --> 00:12:20,180
ูู‚ุท ุฃู†ู‡ ุตุงุฑ ู„ู‡ุง ุนู…ู„ูŠุฉ Conjunction ูˆุจุนุฏ ุฐู„ูƒ ุงู„ู„ูŠ ู‡ูˆ
147
00:12:20,180 --> 00:12:25,860
ุตุงุฑ ุนู…ู„ูŠุฉ dilatation ุจุงู„ู†ุณุจุฉ ู„ู„ Vascularization ุฃู†ู‡
148
00:12:25,860 --> 00:12:30,620
new blood vessels ุฃูˆุนูŠุฉ ุฏู…ูˆูŠุฉ ุฌุฏูŠุฏุฉ ุจุชุชู…ูŠุฒ ุฃู†ู‡ ู‡ุฐู‡
149
00:12:30,620 --> 00:12:35,540
ุงู„ุฃูˆุนูŠุฉ ุงู„ุฏู…ูˆูŠุฉ ู‡ุดุฉ ูุตุงุฑ ู„ู‡ุง ูŠุนู†ูŠ ุจู…ุนู†ู‰ ุงู„ู„ูŠ ู‡ูˆ
150
00:12:35,540 --> 00:12:40,660
ุนู…ู„ูŠุฉ ุชุฑุงูƒู… ุฃูˆ ุชูƒูˆูŠู† ุจุณุจุจ ุงุฑุชุฏุงุก ุงู„ุนุฏุณุงุช ุงู„ู„ุงุตู‚ุฉ
151
00:12:40,660 --> 00:12:47,260
ูˆู…ู…ูƒู† ุฃู†ู‡ ููŠ ุนู…ู„ูŠุฉ ุงู„ Vascularization ุฃู†ู‡ ุชู†ูƒุณุฑ
152
00:12:47,260 --> 00:12:49,300
ุจุณู‡ูˆู„ุฉ ูˆุงุถุญ ุงู„ููƒุฑุฉ
153
00:12:51,880 --> 00:12:55,860
ูุนู†ุฏู†ุง ู‡ู†ุง the normal limbus ุงุญู†ุง ุนุงุฑููŠู† ุฃู† ุงู„
154
00:12:55,860 --> 00:13:00,000
diameter ุจุชุงุน ุงู„ soft contact lens larger than the
155
00:13:00,000 --> 00:13:04,780
cornea ุจูŠุตู„ ู„ูˆูŠู†ุŸ ู„ ุงู„ para limbal ูŠุนู†ูŠ ุจู…ุนู†ู‰ ุฃู†ู‡
156
00:13:04,780 --> 00:13:08,420
semi-scleral design ุชู‚ุฑูŠุจุง ุงู„ diameter ุจุชุฑุงูˆุญ ู…ุง
157
00:13:08,420 --> 00:13:14,220
ุจูŠู† ุชู„ุชุงุด ูˆู†ุต ู„ุฎู…ุณุงุด ู…ู„ู„ูŠู…ุชุฑ ูุจูŠุบุทูŠ ูƒู„ ุงู„ู„ูŠ ู‡ูˆ ู…ูŠู†ุŸ
158
00:13:14,220 --> 00:13:19,580
ุงู„ limbus ุทุจุนุง ุงู„ limbus ุชุนุชุจุฑ ู…ู†ุทู‚ุฉ translational
159
00:13:19,580 --> 00:13:24,940
ุงู„ู„ูŠ ู‡ูˆ zone ุจู…ุนู†ู‰ ู…ู†ุทู‚ุฉ ุดุจู‡ ุดูุงูุฉ ุจุชุฑุจุท ู…ุง ุจูŠู†
160
00:13:24,940 --> 00:13:30,680
ู…ูŠู†ุŸ ุงู„ cornea ูˆ ุงู„ู„ูŠ ู‡ูˆ ุงู„ sclera ูŠุนู†ูŠ ู‡ุฐู‡ ุงู„ู…ู†ุทู‚ุฉ
161
00:13:30,680 --> 00:13:35,360
ุจุชุชู…ูŠุฒ ุฃู†ู‡ ููŠู‡ุง ุจุนุถ ู…ู† ุงู„ blood vessels ุตุญ ูˆู„ุง ู„ุฃุŸ
162
00:13:35,360 --> 00:13:38,560
ู…ุด ุฒูŠ ู…ุซู„ุง ุงู„ cornea ุฃู†ู‡ ู‡ูŠ transparent ุฃูˆ
163
00:13:38,560 --> 00:13:44,400
completely transparent ูุนู†ุฏู†ุง the normal limbus a
164
00:13:44,400 --> 00:13:50,520
vascular transition zone ูŠุนู†ูŠ ุจู…ุนู†ู‰ ุฃู†ู‡ ุดุจู‡ ุดูุงูุฉ
165
00:13:50,520 --> 00:13:58,700
ุงู„ู…ู†ุทู‚ุฉ ู‡ุฐู‡ ูˆุจุชูƒูˆู† ูˆุนุงุฆูŠุฉ containing blood vessels
166
00:13:58,700 --> 00:14:04,820
ู‡ุชุญุชูˆูŠ ุนู„ู‰ ุฃูˆุนูŠุฉ ุฏู…ูˆูŠุฉ whereas the cornea itself is
167
00:14:04,820 --> 00:14:09,520
avascular ุจูŠู†ู…ุง ุงู„ู‚ุฑู†ูŠุฉ ู‡ุชูƒูˆู† ุบูŠุฑ ูˆุนุงุฆูŠุฉ ุฃูˆ ู‡ุชูƒูˆู†
168
00:14:09,520 --> 00:14:15,400
completely transparent it is approximately one
169
00:14:15,400 --> 00:14:20,040
millimeter in width ุนุฑุถ ุงู„ limbus ุชู‚ุฑูŠุจุง ุจูŠู‚ุฏุฑ
170
00:14:20,040 --> 00:14:21,740
ูˆุงุญุฏ ู…ู„ู„ูŠู…ุชุฑ
171
00:14:24,860 --> 00:14:28,700
wider in the vertical meridian particularly
172
00:14:28,700 --> 00:14:34,060
superiorly ุฏุงูŠู…ุง ุงู„ู…ู†ุทู‚ุฉ ุงู„ู„ูŠ ุจุชูƒูˆู† ุงู„ู„ูŠ ู‡ูŠ ุฃุนุฑุถ
173
00:14:34,060 --> 00:14:38,960
ูˆูŠู†ุŸ ููŠ ุงู„ superior ูˆ ุจุชูƒูˆู† ุดูƒู„ู‡ุง ุงู„ู„ูŠ ู‡ูˆ vertical
174
00:14:38,960 --> 00:14:45,100
ุทูŠุจ
175
00:14:45,100 --> 00:14:50,600
ุงู„ุขู† ุฅูŠุด ุฎุทูˆุฑุฉ ุงู„ hyperemiaุŸ ุงู„ hyperemia ุฅูŠุด
176
00:14:50,600 --> 00:14:56,650
ุฎุทูˆุฑุชู‡ุงุŸ ุงุญู†ุง ุนุงุฑููŠู† ุฃู† ุงู„ diameter ุจุชุงุน ุงู„ุนุฏุณุฉ
177
00:14:56,650 --> 00:15:01,270
ุงู„ู„ุงุตู‚ุฉ ู‡ูŠูƒูˆู† Paralimbal ุตุญูŠุญ ูุงู„ุขู† ูƒู„ ุงู„ุฃูˆุนูŠุฉ
178
00:15:01,270 --> 00:15:06,890
ุงู„ุฏู…ูˆูŠุฉ ููŠ ุงู„ุทุจูŠุนูŠ ู‡ุชุนู…ู„ ู„ู‡ุง irritation ุชู‡ูŠุฌ ุทูŠุจ ุฅุฐุง
179
00:15:06,890 --> 00:15:10,430
ูˆุตู„ู†ุง ู„ู…ุฑุญู„ุฉ ุงู„ moderate ุฃูˆ ุงู„ severe ู„ู‡ุฐุง ุงู„ุชู‡ูŠุฌ
180
00:15:10,430 --> 00:15:14,610
ู…ู…ูƒู† ุจุนุฏ ุฐู„ูƒ ุฃู†ู‡ ู‡ูŠุนู…ู„ ู„ู‡ุง complication ู„ู„ู…ุฑูŠุถ
181
00:15:14,610 --> 00:15:18,550
ูˆุจุงู„ุชุงู„ูŠ ุฃู†ู‡ ู„ุงุฒู… ุฃู†ุง ุฃูˆู‚ู ุนู† ุงุฑุชุฏุงุก ุงู„ุนุฏุณุฉ
182
00:15:18,550 --> 00:15:25,770
ุงู„ู„ุงุตู‚ุฉ ุทูŠุจ ู‡ู„ ุงู„ู€ Hyperemia ุชุนุชุจุฑ ุดุงุฆุนุฉ ููŠ ุงู„ู€ RGB
183
00:15:25,770 --> 00:15:33,170
Contact LensesุŸ ู„ูŠุด ุทูŠุจุŸ ุจุงู„ุถุจุทุŒ ุฅุฐุง ู‡ูŠ ู„ูŠุณุช ุดุงุฆุนุฉ
184
00:15:33,170 --> 00:15:36,970
ูˆูŠู† ููŠ ุงู„ู€ RGB Contact LensesุŸ ุจุจุณุงุทุฉ ู„ุฃู† ุงู„ู€
185
00:15:36,970 --> 00:15:40,610
Diameter ุจุชุงุนู‡ุง ู…ุด ู‡ูŠุตู„ ู„ู…ูŠู†ุŸ ู„ู„ู€ Paralimbal Area
186
00:15:40,610 --> 00:15:44,310
ูˆุจุงู„ุชุงู„ูŠ ู…ุด ู‡ุชุนู…ู„ Irritation ู„ู…ูŠู†ุŸ ู„ู„ู€ Blood
187
00:15:44,310 --> 00:15:52,180
vessels ูˆู…ุด ู‡ูŠุชุจุนู‡ุง ุงู„ู„ูŠ ู‡ูˆ ุฅูŠู‡ุŸ ุงู„ุณุคุงู„ ู‡ูˆ ู„ู…ุงุฐุง
188
00:15:52,180 --> 00:15:56,580
ุงู„ู‡ูŠุจุงุฑูŠู…ูŠุง ู„ูŠุณุช ู…ุชูˆูุฑุฉ ุฃูˆ ุบูŠุฑ ู…ุนุฑูˆูุฉ ู…ุน ุงู„ูˆุตูุงุช
189
00:15:56,580 --> 00:16:02,740
ุงู„ุฑู‚ู…ูŠุฉ ุจุณุจุจ ุตุบุฑ ุงู„ุฏูŠุงู…ุชุฑ ู…ู‚ุงุฑู†ุฉ ููŠ ุงู„ูˆุตูุงุช
190
00:16:02,740 --> 00:16:06,860
ุงู„ู‡ูŠุจุงุฑูŠู…ูŠุง ู„ู…ุจู„
191
00:16:06,860 --> 00:16:13,710
Hyperemia is a dilatation of existing limbal
192
00:16:13,710 --> 00:16:18,890
capillaries limbal hyperemia is a dilatation of
193
00:16:18,890 --> 00:16:23,090
existing limbal capillaries ุนุจุงุฑุฉ ุนู† ุชูˆุณูŠุน
194
00:16:23,090 --> 00:16:29,250
ู„ู„ุดุนูŠุฑุงุช ุงู„ุฏู…ูˆูŠุฉ ููŠ ู…ู†ุทู‚ุฉ ุงู„ุจุงุฑุง limbal ุทูŠุจ ุงู„ุขู†
195
00:16:29,250 --> 00:16:33,310
ุงู„ limbal hyperemia ุฃูƒุซุฑ ุดูŠูˆุนุง ููŠ ุงู„ minus ูˆู„ุง ุงู„
196
00:16:33,310 --> 00:16:37,950
plus power lensesุŸ ู„ูŠุด ุทูŠุจ ููŠ ุงู„ plusุŸ
197
00:16:45,260 --> 00:16:50,020
ู‡ูŠ ุจุชูƒูˆู† ุฃูƒุซุฑ ุดูŠูˆุนุง ููŠ ู…ูŠู†ุŸ ููŠ ุงู„ minus lenses ู„ุฃู†
198
00:16:50,020 --> 00:16:53,860
ุงู„ minus ุงู„ thickness ุจูŠูƒูˆู† ุฅูŠู‡ุŸ ุฃูƒุซุฑ ู…ู† ุงู„ center
199
00:16:53,860 --> 00:16:57,340
ูŠุนู†ูŠ ููŠ ุงู„ peripheral ุจูŠูƒูˆู† ุฃูƒุซุฑ ู…ู† ู…ูŠู†ุŸ ู…ู† ุงู„
200
00:16:57,340 --> 00:17:02,550
center ูุงู„ุขู† why hyperemia is more common with
201
00:17:02,550 --> 00:17:06,390
minus lenses ุจุจุณุงุทุฉ ู„ุฃู† ุงู„ุณู…ุงูƒุฉ ููŠ ุงู„ุฃุทุฑุงู ุจุชูƒูˆู†
202
00:17:06,390 --> 00:17:10,490
ุฃูƒุซุฑ ู…ู† ุงู„ center ูุจุงู„ุชุงู„ูŠ ุฃู†ู‡ ุจุชุนู…ู„ ู‚ุฑู†ูŠุฉ
203
00:17:10,490 --> 00:17:15,190
ุงู„ู‚ุฏูŠู…ุฉ ูˆุจุนุฏ ุฐู„ูƒ ุฃู†ู‡ ุจุชุนู…ู„ ุฅูŠู‡ุŸ reduce the oxygen
204
00:17:15,190 --> 00:17:19,510
enter to the cornea ูˆู…ู…ูƒู† ุฃู†ู‡ ุชุนู…ู„ ุฅูŠู‡ุŸ Hypoxia
205
00:17:19,510 --> 00:17:26,130
ูˆุงุถุญุฉุŸ is a common chronic bilateral complication
206
00:17:26,130 --> 00:17:30,530
of hydrogel contact lens wear ูˆู‡ู†ุถูŠู ูƒู„ู…ุฉ
207
00:17:30,530 --> 00:17:34,710
conventional contact lens wear ูŠุนู†ูŠ ู‡ูŠ ุดุงุฆุนุฉ ู…ุน
208
00:17:34,710 --> 00:17:39,950
ุงุฑุชุฏุงุก ุงู„ุนุฏุณุงุช ุงู„ู„ุจุณ ุงู„ูŠูˆู…ูŠ ุงู„ุชู‚ู„ูŠุฏูŠ ุจุดูƒู„ ุฅูŠู‡ุŸ
209
00:17:44,680 --> 00:17:49,520
Patients are usually asymptomaticุŒ ุฏุงูŠู…ุง ุงู„ู…ุฑูŠุถ ู„ุง
210
00:17:49,520 --> 00:17:57,020
ูŠุนุงู†ูŠ ู…ู† ุฃูŠ ูˆุฌูˆุฏ ู„ุฃู„ู… ุฃูˆ ุฃูŠ ุฃุนุฑุงุถ Causes
211
00:17:57,020 --> 00:18:01,420
ุฃุณุจุงุจู‡ุงุŒ ูˆุงู„ุฏู„ูŠู„ ุนู„ู‰ ุฐู„ูƒ ุฃู† ุจุนุถ ุงู„ุทุงู„ุจุงุช ุดูู†ุง
212
00:18:01,420 --> 00:18:04,380
ุนู†ุฏู‡ู… moderate ููŠ ุงู„ conjunctival rednessุŒ
213
00:18:04,380 --> 00:18:07,420
moderate ู„ู…ูŠู†ุŸ ู„ู„ blood vessels ู…ู† ู†ุงุญูŠุฉ ุงู„
214
00:18:07,420 --> 00:18:11,980
irritation ูˆู‡ูŠ ุบูŠุฑ ุดุนูˆุฑ ููŠ ุฃูŠ ุนู„ุงู…ุฉ ู…ู† ู‡ุฐู‡
215
00:18:11,980 --> 00:18:18,870
ุงู„ุนู„ุงู…ุงุช ุงู„ุณุจุจ ู‡ูˆ ุงู„ู‡ูŠุฏุฑูˆุฌูŠู„
216
00:18:18,870 --> 00:18:19,110
ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ
217
00:18:19,110 --> 00:18:21,470
ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ
218
00:18:21,470 --> 00:18:24,890
ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ
219
00:18:24,890 --> 00:18:28,210
ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ
220
00:18:28,210 --> 00:18:28,790
ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ
221
00:18:28,790 --> 00:18:28,990
ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ
222
00:18:28,990 --> 00:18:31,090
ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ
223
00:18:31,090 --> 00:18:32,970
ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†ูŠ ุงู„ุณู„ูŠู…ุงู†
224
00:18:37,340 --> 00:18:41,600
Mid water hydrogen lenses with a thick periphery
225
00:18:41,600 --> 00:18:46,280
ุฏุงูŠู…ุง ุจู†ุฎุชุงุฑ mid water content ู…ู† ุฎู…ุณุฉ ูˆุฎู…ุณูŠู† ู„
226
00:18:46,280 --> 00:18:50,800
ุซู…ุงู†ูŠุฉ ูˆุฎู…ุณูŠู† ููŠ ุงู„ู…ูŠุฉ ู…ุน ุงู„ุนุฏุณุงุช ุงู„ู„ูŠ ุจุชูƒูˆู† ุฅูŠู‡
227
00:18:50,800 --> 00:18:54,940
ุงู„ more thick ูˆูŠู† ููŠ ุงู„ุฃุทุฑุงู ูŠุนู†ูŠ ุงู„ minus lenses
228
00:18:54,940 --> 00:19:00,920
ู…ู‚ุงุฑู†ุฉ ุจุงู„ center long
229
00:19:00,920 --> 00:19:06,540
wearing times or overnight wear ุจุนุถ ุงู„ู…ุฑุถู‰ ุจูŠุฌูˆุง
230
00:19:06,540 --> 00:19:10,900
ุนู„ู‰ ุงู„ู…ุฑูƒุฒ ุฃูˆ ุนู„ู‰ ุงู„ู…ุณุชุดูู‰ ุจูŠู‚ูˆู„ ู„ูƒ ุฃู†ุง ุจู„ุจุณ ุงู„ุนุฏุณุฉ
231
00:19:10,900 --> 00:19:14,960
ุงู„ู„ุงุตู‚ุฉ ุฏูˆู† ู…ุง ุฃุดุนุฑ ุจุฃูŠ ุชุนุจ ูˆุฏูˆู† ู…ุง ุฃุดุนุฑ ุจุฃูŠ
232
00:19:14,960 --> 00:19:18,840
ุชุบูŠูŠุฑ ููŠ ุงู„ู†ุธุฑ ู„ูƒู† ุฅูŠุด ู‡ุฐู‡ ู…ู…ูƒู† ุชุนู…ู„ุŸ Limbal
233
00:19:18,840 --> 00:19:23,280
hyperemia ุณุงุนุงุช ุงู„ู„ุจุณ ุงู„ุทูˆูŠู„ุฉ ุฃูƒุซุฑ ู…ู† ุงุชู†ุงุดุฑ
234
00:19:23,280 --> 00:19:27,980
ุณุงุนุฉ ู…ู…ูƒู† ุชุคุฏูŠ ู„ุฐู„ูƒ ู„ูƒู† ุจุดูƒู„ ู…ุณุชู…ุฑ ูŠุนู†ูŠ continuous
235
00:19:27,980 --> 00:19:32,680
wearing for soft contact lens ุฃูˆ overnight wear
236
00:19:32,680 --> 00:19:36,200
ู‡ุฐู‡ ุฅูŠุด ู‡ุชุนู…ู„ ู‚ุฑู†ูŠุฉ ุงู„ู‚ุฏูŠู…ุฉุŸ ุทุจุนุง ุฅุฐุง ูƒุงู†ุช
237
00:19:36,200 --> 00:19:41,820
ุงู„ู‚ูŠู…ุฉ ู…ู† ุนุดุฑุฉ ู„ุนุดุฑูŠู† ููŠ ุงู„ู…ูŠุฉ ุทูˆุงู„ ุงู„ูŠูˆู… ู‡ุฐู‡
238
00:19:41,820 --> 00:19:45,980
ุชุนุชุจุฑ ุฎุทูŠุฑุฉ ู„ูƒู† ู„ูˆ ุฃูˆู„ ู…ุง ุจูŠุตุญู‰ ุงู„ู…ุฑูŠุถ ู…ู† ุงู„ู†ูˆู…
239
00:19:45,980 --> 00:19:50,560
ุจูŠูƒูˆู† ุงู„ุฃู…ุฑ ุทุจูŠุนูŠ ุฒูŠ ู…ุง ุงุชูู‚ู†ุง ููŠ ู‚ุฑู†ูŠุฉ ุงู„ู‚ุฏูŠู…ุฉ
240
00:19:54,680 --> 00:19:59,600
A tight or immobile hydrogel lens ูŠุนู†ูŠ ูƒุงู†ุช ุงู„ุนุฏุณุฉ
241
00:19:59,600 --> 00:20:05,720
tight ูˆู…ุง ุฃุฎุฏุช ูƒู„ ุดูƒู„ ุงู„ู‚ุฑู†ูŠุฉ ุจู…ุนู†ู‰ ุฃู† ููŠู‡ุง large
242
00:20:05,720 --> 00:20:10,640
diameter ู…ุงููŠุด ุฃูŠ ุญุฑูƒุฉ ู„ู„ุนุฏุณุฉ ู‡ุฐุง ู…ู…ูƒู† ูŠุนู…ู„ limbal
243
00:20:10,640 --> 00:20:15,300
hyperemia ุทูŠุจ ููŠ ุงู„ุญุงู„ุฉ ู‡ุฐู‡ ุงู„ a tight or immobile
244
00:20:15,300 --> 00:20:20,410
hydrogel lens ุฅูŠุด ุงู„ุญู„ุŸ ุฃู…ุง ุจุฌูŠุจ small diameter
245
00:20:20,410 --> 00:20:25,950
ุฃุตุบุฑ ู…ู† ุงู„ู„ูŠ ุนู†ุฏูŠ ุฃูˆ ุจุฌูŠุจ ุงู„ู„ูŠ ู‡ูˆ ุฅูŠู‡ุŸ flat base
246
00:20:25,950 --> 00:20:31,710
layerุŒ ูŠุนู†ูŠ ูˆุงุญุฏุฉ ู…ู† ุงู„ุญุงู„ูŠู† Limbal hyperemia,
247
00:20:32,270 --> 00:20:36,670
fluorescein staining and the presence of microcysts
248
00:20:36,670 --> 00:20:40,770
have been found to be the best biomicroscopic
249
00:20:40,770 --> 00:20:45,490
indicators of corneal hypoxia in hydrogel extended
250
00:20:45,490 --> 00:20:50,380
wear ู„ูˆ ุฌุจุช ู„ูƒ ุณุคุงู„ ูƒูŠู ุจุฏูƒ ุชุนู…ู„ูŠ ู…ู‚ุงุฑู†ุฉ ู…ุง ุจูŠู† ุงู„
251
00:20:50,380 --> 00:20:55,000
microcysts ูˆ ุงู„ corneal ุฃูˆ ุงู„ superficial
252
00:20:55,000 --> 00:20:59,700
punctate keratitis ูˆ ุงู„ superior arcuate staining
253
00:20:59,700 --> 00:21:03,920
ุงู„ุซู„ุงุซุฉ ู‡ุฏูˆู„ ุทุจุนุง ุฃูˆู„ ูˆุงุญุฏุฉ ุงู„ superior arcuate ู„ูˆ
254
00:21:03,920 --> 00:21:07,480
ูŠุนู…ู„ ู„ู†ุง ุงู„ fluorescein ู‡ู†ู„ุงู‚ูŠู‡ ูู‚ุท ูˆูŠู†ุŸ ููŠ ุงู„ upper
255
00:21:07,480 --> 00:21:12,260
part ุจุงู„ุถุจุท ุงู„ู€ superficial punctate keratitis ููŠ
256
00:21:12,260 --> 00:21:16,700
ุงู„ุบุงู„ุจ ู‡ูŠูƒูˆู† ููŠ ุงู„ center ู„ูƒู† ุจุงู„ู†ุณุจุฉ ู„ุงู„ู…ูŠูƒุฑูˆุฒูŠุณุช
257
00:21:16,700 --> 00:21:21,140
okay ุงู„ูู‚ุงุนุงุช ู‡ูŠูƒูˆู† ุงู„ู„ูŠ ู‡ูˆ scattering ู…ู†ุชุดุฑ ููŠ ูƒู„
258
00:21:21,140 --> 00:21:22,620
ุณุทุญ ุงู„ู‚ุฑู†ูŠุฉ
259
00:21:27,140 --> 00:21:31,880
ุทุจุนุง ุงู„ limbal hyperemia ุจุงู„ุดูƒู„ ู‡ุฐุง ู…ู„ุงุญุธูŠู† ุฃู†ู‡
260
00:21:31,880 --> 00:21:36,380
ููŠู‡ ู‡ู†ุงูƒ irritation ู„ ุงู„ blood vessels ูˆุฃูŠุถุง ุงู„ู„ูŠ
261
00:21:36,380 --> 00:21:40,720
ู‡ูˆ ููŠู‡ ู‡ู†ุงูƒ dilatation ู„ ุงู„ blood vessels ูˆู‡ุฐุง
262
00:21:40,720 --> 00:21:45,220
ุดูู†ุงู‡ ููŠ ุงู„ุนู…ู„ ุจุดูƒู„ ุงู„ู„ูŠ ู‡ูˆ ูƒุจูŠุฑ ู„ุงุญุธู†ุง ุฃู† ุจุนุถ ู…ู†
263
00:21:45,220 --> 00:21:48,660
ุงู„ blood vessels ู„ูˆู†ู‡ ู…ุฎุชู„ู ุนู† ู…ูŠู†ุŸ ุงู„ blood
264
00:21:48,660 --> 00:21:52,680
vessels ุงู„ุขุฎุฑูŠู† ุชู„ุงู‚ูŠ ุงู„ู„ูŠ ู‡ูˆ dark ุจุดูƒู„ ุงู„ู„ูŠ ู‡ูˆ
265
00:21:52,680 --> 00:21:53,980
red ูƒุจูŠุฑ
266
00:21:56,570 --> 00:22:00,750
ุทุจ ุงู„ู…ุฑูŠุถ ู„ูˆ ูƒุงู† ุนู†ุฏู‡ mild ุฃูˆ ูƒุงู† ุนู†ุฏู‡ ู…ุซู„ุง a
267
00:22:00,750 --> 00:22:05,330
trace ู„ู…ุจุฉ ุงู„ hyperemiaุŒ ู‡ู„ ุจู†ูˆู‚ูู‡ ุนู† ุงุฑุชุฏุงุก
268
00:22:05,330 --> 00:22:10,410
ุงู„ุนุฏุณุฉุŸ ู„ุฃุŒ ูŠุนู†ูŠ this is normal ูˆููŠ ุจุนุถ ุงู„ุญุงู„ุงุช
269
00:22:10,410 --> 00:22:14,530
ูŠุนู†ูŠ ู…ุซู„ุง ุฒูŠ ุงู„ู†ุงุณ ุงู„ู„ูŠ ุจูŠูƒูˆู† ูŠุนู†ูŠ smokers ู…ุฏุฎู†ูŠู†
270
00:22:14,530 --> 00:22:19,050
ู‡ุฏูˆู„ ุงู„ุฃุดุฎุงุต ุฏุงูŠู…ุง ุฅูŠุด ุจูŠูƒูˆู† ุนู†ุฏู‡ู… irritation ุฃูˆ
271
00:22:19,050 --> 00:22:23,210
ููŠ ุนู†ุฏู‡ู… limbal hyperemia ูู…ุฎุชู„ู ููŠ ุนู…ู„ูŠุฉ ุงู„ุชู‚ูŠูŠู…
272
00:22:23,210 --> 00:22:27,670
ุนู† ู…ูŠู†ุŸ ุนู† ุงู„ normal ุฃูˆ ุงู„ normal human subjects ููŠ
273
00:22:27,670 --> 00:22:30,790
ุนู…ู„ูŠุฉ ุงู„ evaluation ุจุชูˆู‚ู ุฅู† ุดุงุก ุงู„ู„ู‡ ู„ super
274
00:22:30,790 --> 00:22:35,070
ficial vascularization ูˆุงู„ู…ุญุงุถุฑุฉ ุงู„ู‚ุงุฏู…ุฉ ุฅู† ุดุงุก
275
00:22:35,070 --> 00:22:35,610
ุงู„ู„ู‡ ุจู†ูƒู…ู„