Faktor Pemilihan Bingkai Kacamata Untuk Lensa Progresif Pada Pasien Anomali Refraksi Yang Disertai Pesbiopia

Presbyopia is a condition of the eye that loses the ability to focus gradually, to see objects at close range. Presbyopia develops gradually, so someone sometimes just realizes the symptoms after passing the age of 40 years. Glasses are a tool to improve one's visual acuity. The choice of eyeglass frames for progressive lens use for presbyopia is very necessary to prevent inconvenience in using progressive lenses. A progressive lens is a lens where the strength of the lens gradually increases from the far zone, through the corridor to the near zone. In order for progressive lenses to provide optimal performance, first of all, the selection of eyeglass frames is right for the comfort of glasses wearers.

Autofocals: Evaluating gaze-contingent eyeglasses for presbyopes

As humans age, they gradually lose the ability to accommodate, or refocus, to near distances because of the stiffening of the crystalline lens. This condition, known as presbyopia, affects nearly 20% of people worldwide. We design and build a new presbyopia correction, autofocals, to externally mimic the natural accommodation response, combining eye tracker and depth sensor data to automatically drive focus-tunable lenses. We evaluated 19 users on visual acuity, contrast sensitivity, and a refocusing task. Autofocals exhibit better visual acuity when compared to monovision and progressive lenses while maintaining similar contrast sensitivity. On the refocusing task, autofocals are faster and, compared to progressives, also significantly more accurate. In a separate study, a majority of 23 of 37 users ranked autofocals as the best correction in terms of ease of refocusing. Our work demonstrates the superiority of autofocals over current forms of presbyopia correction and could affect the lives of millions.