Dr. Blas's path to optometry started at home. Her younger sister struggled to learn the alphabet and fell below grade level in reading by second grade. When the school tested her vision, the answer became clear: she had binocular vision problems and often saw double while reading.
Her sister began a six-month vision training program, and Dr. Blas helped her with her "eye exercises" every day. By sixth grade, her sister was reading at or above grade level.
Watching vision care change her sister's life is what inspired Dr. Blas to become an optometrist — and it still shapes how she cares for every patient today.

Using advanced diagnostics like the iProfiler and OCT, we provide thorough eye exams that ensure your vision is crystal clear and your eyes are healthy.

Specialized care for conditions like glaucoma, cataracts, and macular degeneration using the latest in diagnostic and treatment technology.

Our curated collection of bespoke frames combines timeless craftsmanship with modern style to enhance your look.
Comprehensive eye exams plus same-day care for urgent eye issues like sudden redness, pain, flashes, floaters, or eye injuries.
Early detection, monitoring, and ongoing management of glaucoma to protect your vision long term.
Annual diabetic eye exams and management of diabetes-related eye disease, with co-management alongside your primary care physician.
Extensive experience fitting soft contact lenses and RGP (rigid gas permeable) lenses, including fits for patients who've struggled with lenses elsewhere.
Dr. Blas wants every patient to leave the exam room feeling two things: heard, and confident they received a truly thorough exam. She takes the time to listen to your concerns, explain what she sees, and answer your questions — because your eye exam is also a window into your overall health.
Dr. Blas sees patients at Eyes in Disguise Optometry, 2133 Union Street, San Francisco, CA 94123, in the Cow Hollow neighborhood. Call (415) 474-5321 to schedule.
Dr. Blas specializes in primary eye care, including emergency eye care, glaucoma management, and diabetic eye disease management. She also has extensive experience with contact lenses, including RGP (rigid gas permeable) lens fittings.
Yes. Dr. Blas fits RGP (rigid gas permeable) lenses, which are often a great option for patients with astigmatism, keratoconus, or those who haven't had success with soft lenses.
Yes. Emergency eye care is part of her primary care specialty. If you have sudden vision changes, eye pain, redness, or an injury, call (415) 474-5321 right away.
The practice accepts VSP, EyeMed, Aetna, Blue Cross Blue Shield, Tricare, and United Health Care.
As Dr. Blas says, eye care is more than glasses and contacts. A comprehensive exam can detect eye diseases like glaucoma as well as signs of systemic conditions such as hypertension, diabetes, and in some cases even cancer — often before you notice symptoms.
Mon–Fri 9am–6pm · Sat 10am–5pm 2133 Union Street, San Francisco, CA 94123
Mon–Fri 9am–6pm · Sat 10am–5pm 2133 Union Street, San Francisco, CA 94123
Thorough exams, advanced contact lens fittings, and a doctor who listens — right on Union Street in Cow Hollow.
Eyes in Disguise Optometry