賣咗十年眼鏡，您問我答3

想知食水深唔深. 知就得.
見D好小小既框. 同靚小小既鏡折左都貴

一個牌嘅人工=三個sales

唔賺你錢點養人呀大佬

想知食水深唔深. 知就得.
見D好小小既框. 同靚小小既鏡折左都貴

越大牌子食水毛利越低

想知食水深唔深. 知就得.
見D好小小既框. 同靚小小既鏡折左都貴

一個牌嘅人工=三個sales

唔賺你錢點養人呀大佬

有咁多咩
求介紹

應該唔得
我諗最多叫佢訂定鏡先
到有鏡時再擺低畀佢sd上工場車裝
起碼要一日









其實隻"新"防藍光出咗都一段時間
啲大廠都仲未有相應嘅產品推出
反而啲細嘅代理就係咁出
而家仲有隻可以變埋色嘅
既然又唔黃又防到藍光咁好
點解啲大廠又唔出呢

其實1.76出左
唔願意出口

依視路都有
不過sSeries 漸進先有

依視路隻SBF同呢隻“新”防藍光有啲唔同嘅
我建議兩隻都再加埋防藍光coating
個保護會全面啲

巴打即係話"新"果隻係冇料到 定 技術唔夠成熟會有瑕疵?

請問sale你嗰位仁兄有冇用支藍色LASER示範隻鏡防藍光嘅效果

有呀, 係真係隔走哂

唔...
咁佢又有冇解釋隻鏡鏡究竟係防邊度嚟嘅藍光LASER筆定係電話電腦嘅螢幕

411係induce cell apoptosis 的 peak
所以420係ok 而又減少左偏色

應該唔得
我諗最多叫佢訂定鏡先
到有鏡時再擺低畀佢sd上工場車裝
起碼要一日









其實隻"新"防藍光出咗都一段時間
啲大廠都仲未有相應嘅產品推出
反而啲細嘅代理就係咁出
而家仲有隻可以變埋色嘅
既然又唔黃又防到藍光咁好
點解啲大廠又唔出呢

其實1.76出左
唔願意出口

依視路都有
不過sSeries 漸進先有

依視路隻SBF同呢隻“新”防藍光有啲唔同嘅
我建議兩隻都再加埋防藍光coating
個保護會全面啲

巴打即係話"新"果隻係冇料到 定 技術唔夠成熟會有瑕疵?

請問sale你嗰位仁兄有冇用支藍色LASER示範隻鏡防藍光嘅效果

有呀, 係真係隔走哂

唔...
咁佢又有冇解釋隻鏡鏡究竟係防邊度嚟嘅藍光LASER筆定係電話電腦嘅螢幕

411係induce cell apoptosis 的 peak
所以420係ok 而又減少左偏色

呢層我有啲保留
411nm對細胞嘅傷害最大
但係喺對電子產品時接觸嘅機會唔多
440-460nm對細胞嘅影響相對細啲
但係呢段正正就係啲屏幕發放得最強嘅波長
而uv420係擋唔到嘅
相反一般嘅Prevencia呀Blue Protect嗰啲藍coat就有效
所以我認為要提供多一個選擇畀啲客去揀
最好就係兩隻都做
咁個我覺得保護就會全面好多
至於個客介唔介意偏色呢個問題
我就通常留返畀個客去揀喇

The aim of our study was to elucidate the role of wavelength and irradiance in blue light retinal damage. We investigated the impact of blue light emitted from light-emitting diode (LED) modules with peaks at either 411 nm (half bandwidth 17 nm) or 470 nm (half bandwidth 25 nm) at defined irradiances of 0.6, 1.5 and 4.5 W/m2 for 411 nm and 4.5 W/m2 for 470 nm on retinal neuronal (R28) cells in vitro. We observed a reduction in metabolic activity and transmembrane potential of mitochondria when cells were irradiated at 411 nm at higher irradiances. Furthermore, production of mitochondrial superoxide radicals increased significantly when cells were irradiated with 411 nm light at 4.5 W/m2. In addition, such irradiation caused an activation of the antioxidative glutathion system. Using vital staining, flow cytometry and western blotting, we were able to show that apoptosis only took place when cells were exposed to 411 nm blue light at higher irradiances; necrosis was not observed. Enhanced caspase-3 cleavage product levels confirmed that this effect was dependent on light irradiance. Significant alterations of the above-mentioned parameters were not observed when cells were irradiated with 471 nm light despite a high irradiance of 4.5 W/m2, indicating that the cytotoxic effect of blue light is highly dependent on wavelength. The observed phenomena in R28 cells at 411 nm (4.5 W/m2) point to an apoptosis pathway elicited by direct mitochondrial damage and increased oxidative stress. Thus, light of 411 nm should act via impairment of mitochondrial function by compromising the metabolic situation of these retinal neuronal cells.

就算emission大都唔代表會有apoptosis 同oxidative stress

所以唔存在藍光防唔到

用HEV or 紫藍光其實好d
不過既然叫開藍光未即管叫藍光
但唔代表有害的是藍色波長

巴野我對個鏡框好有感情 有冇得拎去舖頭配鏡？

巴野我對個鏡框好有感情 有冇得拎去舖頭配鏡？

Ok ah
起碼我接
我知egg 唔接
88都接掛

就算emission大都唔代表會有apoptosis 同oxidative stress

所以唔存在藍光防唔到

用HEV or 紫藍光其實好d
不過既然叫開藍光未即管叫藍光
但唔代表有害的是藍色波長

其實唔係話uv420防唔到藍光(或者正確啲叫HEV)
而係佢只可以有效擋到420nm以下嘅HEV
而一般屏幕嘅440nm-460nm佢係擋唔晒嘅
你quote嗰份嘢係講411nm傷害最大
而471nm就冇乜影響
咁中間嗰段呢
https://www.reviewofoptometry.com/ce/the-lowdown-on-blue-light-good-vs-bad-and-its-connection-to-amd-109744
...Essilor had a partnership with Paris Vision Institute in 2008 and their directive was to find the bands of visible light that were the most harmful to the eyes. They split the visible light into multiple bands of 10 nm and each band was then focused on porcine retinal pigment epithelial (RPE) cells for several hours. So using this method, the specific band of blue light most harmful to the retina and to the RPE cells was identified to be at 415 nm to 455 nm.

The blue-violet light that was discovered as part of this study is a 40 nm band of visible light that causes the maximum retinal cell death. Over time, our eyes are exposed to various sources that emit this blue-violet light (e.g., the sun, LED lighting, CFLs). Combine that with the use of tablets, TVs, computer screens and smart phones, and there's no doubt our exposure to blue-violet light is on the increase. This cumulative and constant exposure to the blue-violet light is going to accumulate over time and has the potential to cause damage to the retinal cells, which is going to slowly lead to retinal cell death and can in turn lead to AMD...
當然實際嘅數據都仲喺研究階段
但如果話只需要防到420nm就夠嘅話
我諗呢個講法對個客以至我地自己都會有風險

想知食水深唔深. 知就得.
見D好小小既框. 同靚小小既鏡折左都貴

一個牌嘅人工=三個sales

唔賺你錢點養人呀大佬

有咁多咩
求介紹

數字freshgrad都開緊35啦，我冇記錯的話

想知食水深唔深. 知就得.
見D好小小既框. 同靚小小既鏡折左都貴

一個牌嘅人工=三個sales

唔賺你錢點養人呀大佬

有咁多咩
求介紹

數字freshgrad都開緊35啦，我冇記錯的話

有咁高

巴野我對個鏡框好有感情 有冇得拎去舖頭配鏡？

Ok ah
起碼我接
我知egg 唔接
88都接掛

巴打做呢行？個價大約係幾多

想知食水深唔深. 知就得.
見D好小小既框. 同靚小小既鏡折左都貴

一個牌嘅人工=三個sales

唔賺你錢點養人呀大佬

有咁多咩
求介紹

數字freshgrad都開緊35啦，我冇記錯的話

有咁高

你肯唔放紅日一定得

想知食水深唔深. 知就得.
見D好小小既框. 同靚小小既鏡折左都貴

一個牌嘅人工=三個sales

唔賺你錢點養人呀大佬

有咁多咩
求介紹

數字freshgrad都開緊35啦，我冇記錯的話

有咁高

你肯唔放紅日一定得

最憎放紅日
去到邊都人頭湧湧

巴野我對個鏡框好有感情 有冇得拎去舖頭配鏡？

Ok ah
起碼我接
我知egg 唔接
88都接掛

巴打做呢行？個價大約係幾多

都想知道個價係幾多
請問可以點contact你?

3年前之前係88配左副成千蚊
個款好柒 但鏡係OK嘅
去邊可以換框留番鏡又信得過
唔該

巴野我對個鏡框好有感情 有冇得拎去舖頭配鏡？

Ok ah
起碼我接
我知egg 唔接
88都接掛

巴打做呢行？個價大約係幾多

都想知道個價係幾多
請問可以點contact你?

我普通料百零元
不過要入有牛既屯門

巴野我對個鏡框好有感情 有冇得拎去舖頭配鏡？

Ok ah
起碼我接
我知egg 唔接
88都接掛

巴打做呢行？個價大約係幾多

都想知道個價係幾多
請問可以點contact你?

我普通料百零元
不過要入有牛既屯門

ok喎 我依家深左戴眼鏡都唔清
巴打TG傾
https://t.me/LCK1223

巴打 想問冇冇機會驗眼時發現比上次 會深散光淺近視？

聽講戴得多藍光鏡片會令近視加深，
真唔真？

聽講戴得多藍光鏡片會令近視加深，
真唔真？

係啲人以為戴咗藍光鏡就無敵手機唔離手
呢啲你戴乜都加深啦

有人話全視線係uv下變色，進光量減少令瞳孔放大，會有更多係眼鏡側邊嘅uv入到眼，點睇呢種講法

有人話全視線係uv下變色，進光量減少令瞳孔放大，會有更多係眼鏡側邊嘅uv入到眼，點睇呢種講法

全視線變深色->瞳孔放大->光線喺眼鏡側邊入眼->視網膜周邊感光細胞受激發->瞳孔縮番細
結論：冇影響，同你戴普通眼鏡冇分別
如果側邊漏入嚟嗰少少紫外線都想防埋嘅話
就呢隻啦

眼鏡尾部,金屬位包住膠個個位好似有氧化,可以點清?